| toxicity of an isolate of bacillus thuringiensis subspecies darmstadiensis to adults of the mexican fruit fly (diptera: (diptera:tephritidae) in the laboratory. | centrifugation pellets obtained from an isolate of bacillus thuringiensis subspecies darmstadiensis (guat 1) cultured from a guatemalan soil sample were found to be toxic to anastrepha ludens (loew) adults in the laboratory. we developed a bioassay diet that consisted of a mixture of the bacterium, a protein source, and sugar. a ph of 4.1 of the mixture was needed to obtain maximum adult mortality. one meal of the diet, which lasted from 30 s to 4 min, was enough to cause > 70% mortality of both ... | 1997 | 9071889 |
| toxicity of bacillus thuringiensis beta-exotoxin to three species of fruit flies (diptera: tephritidae). | the current study describes toxic effects of the bacillus thuringiensis beta-exotoxin toward 3rd instars of 3 fruit fly species: anastrepha ludens (loew), a. obliqua (macquart), and a. serpentina (wiedemann). the beta-exotoxin was highly toxic to all 3 species tested, with lc50 values calculated as 0.641, 0.512, and 0.408 microgram/cm2 of filter paper used to expose the larvae, for a. ludens, a. obliqua, and a. serpentina, respectively. exposure to beta-exotoxin was associated with an increase i ... | 1999 | 10582044 |
| lack of toxicity to adults of the mexican fruit fly (diptera: tephritidae) of beta-exotoxin in bacillus thuringiensis endotoxin preparations. | beta-exotoxin (thuringiensin) was found in high titers in centrifugation supernatants and acetone/lactose powders produced from centrifugation pellets of strains guat 1 and hd 2 of bacillus thuringiensis (berliner). diets containing powders of either strain were toxic, diets containing guat 1 supernatant were not toxic, diets containing hd 2 supernatant were slightly toxic, and diets containing powders or supernatants from uninoculated culturing medium spiked with beta-exotoxin were not toxic. m ... | 2000 | 10985014 |
| virulence of metarhizium anisopliae (deuteromycotina: hyphomycetes) on anastrepha ludens (diptera: tephritidae): laboratory and field trials. | twenty isolates of the fungus metarhizium anisopliae (metsch). sorkin (ma) were evaluated to determine their virulence against last instar and adult emergence of mexican fruit fly, anastrepha ludens (loew). larvae were exposed by immersion in a conidial suspension at a concentration of 10(8) ufc/ml under laboratory conditions. larvae and pupae cumulative mortality rates ranged from 37.9 to 98.75%. thirteen isolates caused mortality rates > 83.7%, and their lt50 values ranged from 1.8 to 6.2 d. t ... | 2000 | 10985015 |
| isolation and identification of bacteria associated with adult laboratory mexican fruit flies, anastrepha ludens (diptera: tephritidae). | from the guts of new and old colonies (female and male) of mexican fruit flies, anastrepha ludens (diptera: tephritidae), we identified a total of 18 different bacterial species belonging to the family enterobacteriaceae, pseudomonadaceae, vibrionaceae, micrococcaceae, deinococcacea, bacillaceae, and the genus listeria. enterobacter, providencia, serratia, and staphylococcus spp. were the most frequently isolated genera, with citrobacter, streptococcus, aerococcus, and listeria found less freque ... | 2001 | 11178731 |
| field evaluation of a phototoxic dye, phloxine b, against three species of fruit flies (diptera: tephritidae). | the xanthene dye phloxine b (d&c red #28) bait was sprayed against fruit flies in mango orchards in 1996 and 1997. the flies used for testing were mexican fruit fly, anastrepha ludens (loew), west indian fruit fly, anastrepha obliqua (macquart), and mediterranean fruit fly, ceratitis capitata (wiedeman). results of the experiments indicate that the toxic efficacy of phloxine b against these fruit flies is as good as that of malathion-bait sprays. results also indicate that type of protein used w ... | 2001 | 11777044 |
| beauveria bassiana as a pathogen of the mexican fruit fly (diptera: tephritidae) under laboratory conditions. | bioassays were carried out under controlled conditions (27 +/- 2 degrees c, 80 +/- 5% rh, and a photoperiod of 12:12 [l:d] h) to evaluate the effect of eight strains of the entomopathogenic fungus beauveria bassiana upon larvae, pupae, and adult females of the mexican fruit fly, anastrepha ludens (loew). mortality of the immature stages was low, 2-8% in larvae and 0% in pupae. however, very high levels of mortality were obtained for adult flies, with values of 100, 98, and 98% for the strains bb ... | 2002 | 11942762 |
| purine metabolizing capability of enterobacter agglomerans affects volatiles production and attractiveness to mexican fruit fly. | we investigated two strains of enterobacter agglomerans that differ in their ability to metabolize uric acid for (1) attractiveness to sugar-fed mexican fruit flies, and (2) production of volatile chemicals that may be responsible for the attractiveness. the two strains were cultured on a medium that contained uric acid as the primary nitrogen source to simulate bird feces, a natural substrate for this bacterium. active cultures of both strains were more attractive than uninoculated uric acid me ... | 2002 | 12371809 |
| composition of the surface hydrocarbons from the vitelline membranes of dipteran embryos. | hydrocarbons were the major lipid class extracted by hexane from the vitelline membrane surface of dechorionated eggs of the house fly, musca domestica, the new world screwworm, cochliomyia hominivorax, the secondary screwworm, cochliomyia macellaria, the green bottle fly, phaenicia sericata, the sheep blow fly, lucilia cuprina and the mexican fruit fly, anastrepha ludens. the length of time the embryos must be exposed to hexane with or without a small amount of alcohol in order to attain permea ... | 2003 | 14529755 |
| adult diet and male-female contact effects on female reproductive potential in mexican fruit fly (anastrepha ludens loew) (diptera tephritidae). | wild strains of fruit flies (diptera: tephritidae) placed into laboratory rearing conditions are subjected to selection pressures caused by the diet, cages, density of flies, and other factors. selection that changes mating behavior of the strain may result in less effective males released in sterile insect programs. tests were performed to examine the effects of protein in diet and adult interactions on egg production and mating during sexual maturation of the mexican fruit fly (anastrepha lude ... | 2003 | 14994799 |
| nonhost status of commercial persea americana 'hass' to anastrepha ludens, anastrepha obliqua, anastrepha serpentina, and anastrepha striata (diptera: tephritidae) in mexico. | the objective of this study was to determine the host status in mexico of commercially cultivated and marketed avocado, persea americana (mill.), 'hass' to anastrepha ludens (loew), anastrepha obliqua (macquart), anastrepha serpentina (wiedemann), and anastrepha striata (schiner) (diptera: tephritidae). experiments in michoacán, mexico, were carried out in six orchards located at three altitudes above sea level during two times (august-october 2001 and april-june 2002). they included choice ('ha ... | 2004 | 15154448 |
| volatiles production and attractiveness to the mexican fruit fly of enterobacter agglomerans isolated from apple maggot and mexican fruit flies. | we investigated two strains of uricase (+) enterobacter agglomerans, one isolated from the apple maggot fly (amf) and one from the mexican fruit fly (mff), for 1) attractiveness to mff, and 2) production of attractive chemicals. regarding chemicals demonstrated attractive to the mff, the mff bacterial strain produced more 2,5-dimethylpyrazine, 2-phenylethanol, and indole than the amf strain, whereas the amf, but not the mff strain, produced 3-hydroxybutanone. cell types that predominated in plat ... | 2004 | 15503523 |
| long aculeus and behavior of anastrepha ludens render gibberellic acid ineffective as an agent to reduce 'ruby red' grapefruit susceptibility to the attack of this pestiferous fruit fly in commercial groves. | treating mexican grapefruit with gibberellic acid (ga3) before color break, significantly delayed peel color change and increased peel puncture resistance, but it did not reduce grapefruit susceptibility to mexican fruit fly, anastrepha ludens (loew) attack under natural conditions. despite ga3 treatments, larval infestation levels increased with higher fruit fly populations, which also increased as the season progressed. late in the season, infestation levels were even higher in ga3-treated fru ... | 2006 | 16937671 |
| comparison of sexual compatibility between laboratory and wild mexican fruit flies under laboratory and field conditions. | the sexual compatibility between laboratory (lf) and wild (wf) strains of the mexican fruit fly, anastrepha ludens (loew), was analyzed using analogous methodologies and experimental arenas under both laboratory and field conditions. sexual compatibility was quantified with the following indices: the isolation index (isi), male relative performance index (mrp), female relative performance index (frpi), and the relative sterility index (rsi). isi detected a certain level of incompatibility betwee ... | 2006 | 17195663 |
| horizontal transmission of beauveria bassiana in anastrepha ludens (diptera: tephritidae) under laboratory and field cage conditions. | the virulence of two products of the fungus beauveria bassiana (lcpp and bassianil) on adult anastrepha ludens (loew) (diptera: tephritidae) and their effect on the mating performance of infected males was evaluated in laboratory and field cage tests. the horizontal transmission capacity of the fungus during copulation or attempted copulation also was quantified using inoculated males as well as the impact of infection on female fecundity and longevity. both fungal products were found to be high ... | 2007 | 17461049 |
| development of bait stations for fruit fly population suppression. | the application of insecticides is an essential component for eradication or management of fruit fly pests. impact on nontarget organisms and public rejection of areawide pesticide applications have been major concerns in managing these programs. bait stations have been proposed as alternative treatments in areas where broadcast insecticides are not acceptable. in this study, we defined bait stations as discrete containers of attractants and toxins, which are targeted at specific pests. tests we ... | 2007 | 17461069 |
| comparison of two synthetic food-odor lures for captures of feral mexican fruit flies (diptera: tephritidae) in mexico and implications regarding use of irradiated flies to assess lure efficacy. | feral mexican fruit flies, anastrepha ludens (loew) (diptera: tephritidae), were trapped in a citrus orchard in mexico by using two types of synthetic food-odor lures, the aff lure (anastrepha fruit fly lure, aptiv, inc., portland, or) and the biolure (two-component mff lure, suterra llc, inc., bend, or). in multilure traps (better world manufacturing, inc., miami, fl) containing water, biolures captured about the same numbers of flies as aff lures. in multilure traps containing antifreeze solut ... | 2007 | 17849863 |
| longevity-fertility trade-offs in the tephritid fruit fly, anastrepha ludens, across dietary-restriction gradients. | although it is widely known that dietary restriction (dr) not only extends the longevity of a wide range of species but also reduces their reproductive output, the interrelationship of dr, longevity extension and reproduction is not well understood in any organism. here we address the question: 'under what nutritional conditions do the longevity-enhancing effects resulting from food restriction either counteract, complement or reinforce the mortality costs of reproduction? to answer this questio ... | 2008 | 18346215 |
| potential increase in fruit fly (diptera: tephritidae) interceptions using ionizing irradiation phytosanitary treatments. | irradiation postharvest phytosanitary treatments are used increasingly and show further promise because of advantages compared with other treatments. its chief disadvantage is that, unlike all other commercially used treatments, it does not provide acute mortality, although it prevents insects from completing development or reproducing. the objective of this research was to determine to what extent irradiated egg and early instars of tephritids would develop to later instars that could be found ... | 2008 | 18613570 |
| random mating among anastrepha ludens (diptera: tephritidae) adults of geographically distant and ecologically distinct populations in mexico. | the mexican fruit fly anastrepha ludens (loew) (diptera: tephritidae) is a polyphagous pestiferous insect with a geographical range encompassing highly variable environmental conditions. considering that cryptic species have been recently found among south american representatives of the same taxonomic group as a. ludens, we tested whether or not some populations of a. ludens have evolved assortative mating as an isolating mechanism that maintains intrapopulation genetic differences and behavior ... | 2009 | 19063753 |
| larval feeding substrate and species significantly influence the effect of a juvenile hormone analog on sexual development/performance in four tropical tephritid flies. | the juvenile hormone (jh) analog methoprene reduces the amount of time it takes laboratory-reared anastrepha suspensa (caribbean fruit fly) males to reach sexual maturity by almost half. here, we examined if methoprene exerted a similar effect on four other tropical anastrepha species (anastrepha ludens, anastrepha obliqua, anastrepha serpentina and anastrepha striata) reared on natural hosts and exhibiting contrasting life histories. in the case of a. ludens, we worked with two populations that ... | 2009 | 19101560 |
| wolbachia in two populations of melittobia digitata dahms (hymenoptera: eulophidae). | we investigated two populations of melittobia digitata dahms, a gregarious parasitoid (primarily upon a wide range of solitary bees, wasps, and flies), in search of wolbachia infection. the first population, from xalapa, mexico, was originally collected from and reared on mexican fruit fly pupae, anastrepha ludens loew (diptera: tephritidae); the other, from athens, georgia, was collected from and reared on prepupae of mud dauber wasps, trypoxylon politum say (hymenoptera: crabronidae). pcr stud ... | 2008 | 19169549 |
| there is no magic fruit fly trap: multiple biological factors influence the response of adult anastrepha ludens and anastrepha obliqua (diptera: tephritidae) individuals to multilure traps baited with biolure or nulure. | field-cage experiments were performed to determine the effectiveness of multilure traps (better world mfg inc., fresno, ca) baited with nulure (miller chemical and fertilizer corp., hanover, pa) or biolure (suterra llc, inc., bend, or) in capturing individually marked mexican fruit fly, anastrepha ludens (loew), and west indian fruit fly, anastrepha obliqua (macquart) (diptera: tephritidae), of both sexes. experimental treatments involved wild and laboratory-reared flies of varying ages (2-4 and ... | 2009 | 19253622 |
| the prolongevity effect of resveratrol depends on dietary composition and calorie intake in a tephritid fruit fly. | several studies have shown that resveratrol can extend lifespan in yeast, worm, fruit fly and short-lived fish, as well as mice under a high-fat diet, probably acting through molecular pathways similar to dietary restriction. however, the putative prolongevity effect of resveratrol has not been observed in other studies. to evaluate the robustness of the prolongevity effects of resveratrol, we designed a nutritional study to address the question, under what nutritional conditions does resveratro ... | 2009 | 19264118 |
| the beta2-tubulin gene from three tephritid fruit fly species and use of its promoter for sperm marking. | to isolate testis-specific regulatory dna that could be used in genetically transformed insect pest species to improve their biological control, beta2-tubulin genes and their proximal genomic dna were isolated from three economically important tephritid pest species, anastrepha suspensa, anastrepha ludens, and bactrocera dorsalis. gene isolation was first attempted by degenerate pcr on an a. suspensa adult male testes cdna library, which fortuitously isolated the 2.85 kb beta1-tubulin gene that ... | 2009 | 19520163 |
| effects of bait age and prior protein feeding on cumulative time-dependent mortality of anastrepha ludens (diptera: tephritidae) exposed to gf-120 spinosad baits. | a fruit fly bait to attract and kill adult fruit flies, gf-120, was tested in cages to determine effects of pretreatment diet and bait aging before use on cumulative mortality rates of mexican fruit fly, anastrepha ludens (loew) (diptera: tephritidae). protein-starved and protein-fed, 9-d-old flies both experienced varying overall cumulative mortality at 4, 8, 24, and 48 h. pretreatment diet had no significant effect on mortality. overall mortality rates were below 10% for 4 h, 39-43% at 8 h, bu ... | 2009 | 19610432 |
| date of eclosion modulates longevity: insights across dietary-restriction gradients and female reproduction in the mexfly anastrepha ludens. | we use unique experimental data on daily reproduction and survival of individual fruit flies from eight cohorts eclosed at different dates in 2004 and 2005 who were treated with varying proportions of sugar and yeast and subject to different caloric restrictions (cr). we investigate the relationship between eclosion date and longevity across diets and reproduction in anastrepha ludens. we show that eclosion date can be associated with uncontrolled external or internal factor(s) which can modulat ... | 2009 | 19716408 |
| prolongevity effects of an oregano and cranberry extract are diet dependent in the mexican fruit fly (anastrepha ludens). | botanicals have numerous health benefits. here, we used the mexican fruit fly to screen 14 compounds and botanicals for their prolongevity effects and found an oregano and cranberry mixture (oc) improved survival. we then evaluated prolongevity effects of oc within the context of diet composition. individual flies were fed 0%, 1%, or 2% oc in one of the three diets containing sugar and yeast extract (sy) at a ratio of 3:1, 9:1, or 24:1. we found that prolongevity effects of oc depended upon dose ... | 2010 | 19906819 |
| application of feces extracts and synthetic analogues of the host marking pheromone of anastrepha ludens significantly reduces fruit infestation by a. obliqua in tropical plum and mango backyard orchards. | we determined the efficacy of three potential oviposition deterrents in reducing fruit infestation by anastrepha obliqua in tropical plum and mango orchards. these were: (1) extracts of feces of mexican fruit fly, anastrepha ludens, known to contain the a. ludens host marking pheromone (hmp) and (2) two fully synthetic simplified analogues of the naturally occurring compound, which we have named desmethyl a. ludens hmp (dm-hmp) and anastrephamide. two applications of feces extracts 2 or 3 wk bef ... | 2009 | 20069857 |
| host status of grapefruit and valencia oranges for anastrepha serpentina and anastrepha ludens (diptera: tephritidae). | anastrepha serpentina (wiedemann) (diptera: tephritidae) is sporadically captured in the rio grande valley of texas. although its preferred hosts are in the sapotaceae family, several varieties of citrus, including grapefruit and oranges are listed as alternate hosts. although mexican fruit fly, anastrepha ludens (loew), is known to be a major pest of citrus, doubt exists as to the status of citrus as a breeding host for a. serpentina. to evaluate the host status of commercial citrus for a. serp ... | 2011 | 21510184 |
| Anastrepha ludens and Anastrepha serpentina (Diptera: Tephritidae) do not infest Psidium guajava (Myrtaceae), but Anastrepha obliqua occasionally shares this resource with Anastrepha striata in nature. | This study examined whether economically important fruit fly species Anastrepha ludens (Loew), Anastrepha serpentina (Wiedemann), and Anastrepha obliqua (Macquart) (Diptera: Tephritidae) may opportunistically exploit guavas, Psidium guajava L. (Myrtaceae), growing near preferred natural hosts. We collected 3,459 kg of guavas and 895 kg of other known host species [sour orange, Citrus aurantium L.; grapefruit, Citrus paradisi Macfadyen; mango, Mangifera indica L.; white sapote, Casimiroa edulis L ... | 2011 | 21882684 |
| fitness cost implications of phic31-mediated site-specific integrations in target-site strains of the mexican fruit fly, anastrepha ludens (diptera: tephritidae). | site-specific recombination technologies are powerful new tools for the manipulation of genomic dna in insects that can improve transgenesis strategies such as targeting transgene insertions, allowing transgene cassette exchange and dna mobilization for transgene stabilization. however, understanding the fitness cost implications of these manipulations for transgenic strain applications is critical. in this study independent piggybac-mediated attp target-sites marked with dsred were created in s ... | 2014 | 25303238 |
| the smart aerial release machine, a universal system for applying the sterile insect technique. | beyond insecticides, alternative methods to control insect pests for agriculture and vectors of diseases are needed. management strategies involving the mass-release of living control agents have been developed, including genetic control with sterile insects and biological control with parasitoids, for which aerial release of insects is often required. aerial release in genetic control programmes often involves the use of chilled sterile insects, which can improve dispersal, survival and competi ... | 2014 | 25036274 |
| cytogenetic analysis of the south american fruit fly anastrepha fraterculus (diptera:tephritidae) species complex: construction of detailed photographic polytene chromosome maps of the argentinian af. sp.1 member. | genetic and cytogenetic studies constitute a significant basis for understanding the biology of insect pests and the design and the construction of genetic tools for biological control strategies. anastrepha fraterculus is an important pest of the tephritidae family. it is distributed from southern texas through eastern mexico, central america and south america causing significant crop damage and economic losses. currently it is considered as a species complex; until now seven members have been ... | 2016 | 27362546 |
| deleterious effect of suboptimal diet on rest-activity cycle in anastrepha ludens manifests itself with age. | activity patterns and sleep-wake cycles are among the physiological processes that change most prominently as animals age, and are often good indicators of healthspan. in this study, we used the video-based high-resolution behavioral monitoring system (bms) to monitor the daily activity cycle of tephritid fruit flies anastrepha ludens over their lifetime. surprisingly, there was no dramatic change in activity profile with respect to age if flies were consistently fed with a nutritionally balance ... | 0 | 23639915 |
| comparison of torula yeast and various grape juice products as attractants for mexican fruit fly (diptera: tephritidae). | early research investigating attractants for the mexican fruit fly, anastrepha ludens loew, during the 1930s indicated that fermentation products were effective attractants for mexican fruit flies and other tropical tephritidae, but that attraction to fruit components was only of academic interest. tests reported here were carried out on populations of mexican fruit flies from 2004 to 2011. trapping experiments carried out at sites in the states nuevo leon and san luis potosi compared grape juic ... | 2014 | 24772538 |
| modeling the cost-effectiveness of insect rearing on artificial diets: a test with a tephritid fly used in the sterile insect technique. | we modeled the cost-effectiveness of rearing anastrepha ludens, a major fruit fly pest currently mass reared for sterilization and release in pest control programs implementing the sterile insect technique (sit). an optimization model was generated by combining response surface models of artificial diet cost savings with models of a. ludens pupation, pupal weight, larval development time and adult emergence as a function of mixtures of yeast, a costly ingredient, with corn flour and corncob frac ... | 2017 | 28257496 |
| costly nutritious diets do not necessarily translate into better performance of artificially reared fruit flies (diptera: tephritidae). | protein, lipid, carbohydrate, and energy contents of three artificial diets (xal2, met1, and met2) used for laboratory-rearing and mass-rearing the mexican fruit fly, anastrepha ludens (loew), for a sterile insect technique program were measured. the larval survival, pupation, pupal weight, adult emergence, sex ratio, and flight capacity of the flies reared on each of these diets were also quantified. the diet with the highest nutrient and energy content was xal2 followed by met2 and met1, but l ... | 2015 | 26470103 |
| effect of multiple endogenous biological factors on the response of the tephritids anastrepha ludens and anastrepha obliqua (diptera: tephritidae) to multilure traps baited with biolure or nulure in mango orchards. | the physiological state of an insect is likely the most important endogenous factor influencing resource-oriented behavior, and it varies considerably among individuals. trials were conducted in mango orchards to study the effect of multiple endogenous biological factors on the response of two fly species, anastrepha ludens (loew) and anastrepha obliqua maquart (diptera: tephritidae), to biolure and nulure baits. the biological factors of the two fly species that were tested were the following: ... | 2014 | 25026661 |
| the interplay among dietary fat, sugar, protein and açai (euterpe oleracea mart.) pulp in modulating lifespan and reproduction in a tephritid fruit fly. | macronutrient balance is a critical contributor in modulating lifespan and health. consumption of diets rich in fruits and vegetables provides numerous health benefits. the interactions among macronutrients and botanicals and how they influence aging and health remain elusive. here we employed a nutritional geometry approach to investigate the interplay among dietary fat, sugar, protein and antioxidant- and polyphenolic-rich freeze-dried açai pulp in modulating lifespan and reproductive output i ... | 2012 | 22580089 |
| attractiveness to mexican fruit flies of combinations of acetic acid with ammonium/amino attractants with emphasis on effects of hunger. | ammonium acetate was more attractive than other ammonium salts to mexican fruit flies (anastrepha ludens) in an orchard test. we hypothesized that acetic acid enhanced the attractiveness of ammonia in the orchard test and that acetic acid may similarly enhance attractiveness of ampu, an attractant consisting of a mixture of ammonium bicarbonate or ammonium carbonate, methylamine hcl, and putrescine. in laboratory experiments, acetic acid was attractive to flies deprived of either yeast hydrolysa ... | 1996 | 24227489 |
| attraction of both sexes of mexican fruit fly,anastrepha ludens, to a mixture of ammonia, methylamine, and putrescine. | eight chemicals were evaluated in laboratory experiments as attractants for sugar-fed adult mexican fruit flies. ammonium bicarbonate, methylamine hcl, ethanolamine, pyrrolidine, putrescine, and monomethyl succinate were slightly attractive when tested singly. a mixture containing all eight chemicals was much more attractive than any of the individual chemicals. through a series of experiments, a mixture of three of the chemicals was found that was at least as attractive as the original eight-co ... | 1993 | 24248791 |
| a four-component attractant for the mexican fruit fly,anastrepha ludens (diptera: tephritidae), from host fruit. | sixteen chemicals found in fermented chapote fruit odor were evaluated as attractants for hungry adult mexican fruit flies. ethyl octanoate, ethyl benzoate, terpinyl acetate, ethyl salicylate, and (-)-α-copaene proved slightly attractive. several of the chemicals also were tested for their ability to increase the attractiveness of the previously developed chapote-derived attractant (ceh) consisting of 1,8-cineole, ethyl hexanoate, and hexanol. combinations containing ceh with ethyl octanoate, et ... | 1992 | 24254162 |
| a novel attractant for mexican fruit fly,anastrepha ludens, from fermented host fruit. | chemicals from fermented chapote fruit were identified and evaluated as attractants for hungry adult mexican fruit flies in laboratory and greenhouse bioassays. twenty-eight chemicals identified from an attractive gas-chromatography fraction were as attractive as a chapote volatiles extract (cv) when mixed in the same amounts found in cv. sixteen of the chemicals were slightly attractive to flies when tested individually. a mixture containing 15 of the chemicals by design and the 16th as an impu ... | 1990 | 24263255 |
| grapefruit as a host for the west indian fruit fly (diptera: tephritidae). | the most common hosts for the west indian fruit fly, anastrepha obliqua (macquart) (diptera: tephritidae) are fruit in the family anacardiaceae (mango [mangifera l.] and mombin [spondias l.] species). however, similar to many of the tropical fruit flies of major economic importance, this species attacks several other families of crop fruit, including annonaceae (cherimoya, annona cherimola mill.), myrtaceae (guava, psidium l.), oxalidaceae (carambola, averrhoa carambola l.), passifloraceae (gran ... | 2011 | 21404839 |
| phytosanitary cold treatment for oranges infested with bactrocera zonata (diptera: tephritidae). | the peach fruit fly, bactrocera zonata (saunders), attacks a wide range of tree fruits in countries from egypt to vietnam and is occasionally trapped in the united states. phytosanitary treatments may be required to export fruit hosts of this insect from countries where it is endemic to countries where it is absent but could become established. this research describes comparative studies to determine if b. zonata could be phytosanitarily controlled by cold treatment schedules existing for cerati ... | 2013 | 24498731 |
| evaluation of the host status of mature green papayas 'maradol' for the mexican fruit fly (diptera: tephritidae). | the suitability of mature green 'maradol' papaya as a host of anastrepha ludens (loew) was studied under field and laboratory conditions. field tests were conducted on commercial-ripened and spot-ripened fruit in two orchards and during two seasons in the state of chiapas. fruits at exportation ripeness are in "commercial ripeness", while fruits that are harvested immediately preceding exportation ripeness are in "spot ripeness." the field tests consisted of forced infestation experiments that e ... | 2014 | 26309263 |
| sexual competitiveness of anastrepha ludens (diptera: tephritidae) males exposed to citrus aurantium and citrus paradisi essential oils. | males of the mediterranean fruit fly (ceratitis capitata (wiedemann)) display increased mating competitiveness following exposure to the odor of certain host and nonhost plants, and this phenomenon has been used in the sterile insect technique to boost the mating success of released, sterile males. here, we aimed to establish whether males of the mexican fruit fly (anastrepha ludens (loew)) gain a mating advantage when exposed to the aroma of two preferred hosts, grapefruit (citrus paradisi macf ... | 2015 | 26470173 |
| olfactory response of the mexican fruit fly (diptera: tephritidae) to citrus aurantium volatiles. | we investigated the behavioral and electrophysiological responses of male and female mexican fruit fly, anastrepha ludens (loew) (diptera: tephritidae), to volatiles of bitter orange fruit, citrus aurantium l. in field cage tests, the number of a. ludens caught in multilure traps baited with mature green bitter orange fruit was significantly higher than the number captured in traps baited with ripe yellow bitter orange fruit and control (unbaited traps). both sexes were more attracted to mature ... | 2009 | 19449638 |
| determination of the host status of the 'persian' lime (citrus latifolia tanaka) for anastrepha ludens (loew) (diptera: tephritidae). | field and laboratory no-choice oviposition tests were performed to determine whether the 'persian' lime (citrus latifolia tanaka) is a host of anastrepha ludens loew (diptera: tephritidae). trapping and fruit sampling were performed to determine adult population densities and the level of infestation in the two lime orchards. additionally, unharvested and harvested limes were exposed to sexually mature flies and the number of eggs laid and the immature developmental rates were determined. as a c ... | 2015 | 26470106 |
| mexican fruit fly populations in the semi-arid highlands of the sierra madre oriental in northeastern mexico. | the mexican fruit fly, anastrepha ludens loew (diptera: tephritidae), is one of the most important pests of citrus in mexico. we report the results of an analysis of a. ludens populations that inhabit the semi-arid highlands of the sierra madre oriental in northeastern mexico. this study aimed to provide information on population fluctuation of a. ludens and how it relates to climate variables, as well as insights into habitat and native parasitoids. population peaked in the period july-november ... | 2017 | 28054305 |
| nonhost status of citrus sinensis cultivar valencia and c. paradisi cultivar ruby red to mexican anastrepha fraterculus (diptera: tephritidae). | anastrepha fraterculus (wiedemann) is recognized as a pest of citrus, apples, and blackberries in south america. in mexico, it is mainly found in fruit of the family myrtaceae and has never been reported infesting citrus. here, we sought to determine whether females stemming from mexican a. fraterculus populations (collected in the state of veracruz) would lay eggs in 'valencia' oranges and 'ruby red' grapefruit and, if so, whether larvae would hatch and develop. we worked under laboratory and s ... | 2003 | 14977105 |
| understanding long-term fruit fly (diptera: tephritidae) population dynamics: implications for areawide management. | fruit flies (diptera: tephritidae) are devastating agricultural pests worldwide but studies on their long-term population dynamics are sparse. our aim was to determine the mechanisms driving long-term population dynamics as a prerequisite for ecologically based areawide pest management. the population density of three pestiferous anastrepha species [anastrepha ludens (loew), anastrepha obliqua (macquart), and anastrepha serpentina (wiedemann)] was determined in grapefruit (citrus x paradisi macf ... | 2012 | 22812118 |
| evaluation of the efficacy of the methyl bromide fumigation schedule against mexican fruit fly (diptera: tephritidae) in citrus fruit. | methyl bromide fumigation is widely used as a phytosanitary treatment. mexican fruit fly, anastrepha ludens (loew) (diptera: tephritidae), is a quarantine pest of several fruit, including citrus (citrus spp.), exported from texas, mexico, and central america. recently, live larvae have been found with supposedly correctly fumigated citrus fruit. this research investigates the efficacy of the previously approved u.s. department of agriculture-animal and plant health inspection service treatment s ... | 2011 | 21404840 |
| mass trapping is as effective as ground bait sprays for the control of anastrepha (diptera: tephritidae) fruit flies in mango orchards. | anastrepha fruit flies are considered one of the main phytosanitary problems for the fresh fruit industry in the usa, caribbean islands and latin america. since 1994, the mexican government implemented the national fruit fly program using an area-wide integrated pest management approach. in this paper, we evaluated the effectiveness of mass trapping and compared it with ground gf-120 spraying against anastrepha obliqua and anastrepha ludens populations in mango cv ataulfo orchards. | 2017 | 28382747 |
| male age and strain affect ejaculate quality in the mexican fruit fly. | aging in all organisms is inevitable. male age can have profound effects on mating success and female reproduction, yet relatively little is known on the effects of male age on different components of the ejaculate. furthermore, in mass-reared insects used for the sterile insect technique, there are often behavioral differences between mass-reared and wild males, while differences in the ejaculate have been less studied. the ejaculate in insects is composed mainly of sperm and accessory gland pr ... | 2017 | 28217884 |
| effect of resin ducts and sap content on infestation and development of immature stages of anastrepha obliqua and anastrepha ludens (diptera: tephritidae) in four mango (sapindales: anacardiaceae) cultivars. | we determined the influence of resin ducts, sap content, and fruit physicochemical features of four mango cultivars (criollo, manila, ataulfo, and tommy atkins) on their susceptibility to the attack of the two most pestiferous fruit fly species infesting mangoes in mexico: anastrepha ludens (loew) and anastrepha obliqua (macquart). we performed three studies: 1) analysis of resin ducts in mango fruit exocarp to determine the density and area occupied by resin ducts in each mango cultivar, 2) ass ... | 2017 | 28073981 |
| the effects of a modified hot water treatment on anastrepha ludens (diptera: tephritidae)-infested mango. | the mexican fruit fly, anastrepha ludens (loew), is a quarantine pest in mango (mangifera indica l.) that can be controlled by using a hot water treatment (hwt). this treatment is normally followed by a 30-min hydrocooling (hyc) process that reduces the negative effects that the treatment has on fruit quality. however, if hot water-treated fruits are immediately immersed in water at 21 °c, the survival rate of third-instar a. ludens may be increased. the current approved treatment protocol state ... | 2017 | 28073977 |
| comparative responses of anastrepha ludens and anastrepha obliqua (diptera: tephritidae) to the synthetic attractant biolure. | the responses of wild and sterile anastrepha ludens (loew) and anastrepha obliqua (mcquart) fruit flies to the synthetic attractant biolure were determined by electroantennography (eag), in field cage tests using multilure traps, and by release-recapture field experiments using sterile flies. in eag bioassays, no differences were found between species, sexes, sterile and wild flies. there were only specific differences and interactions in dose responses. more a. ludens than a. obliqua individual ... | 2016 | 27473263 |
| nutritional and non-nutritional food components modulate phenotypic variation but not physiological trade-offs in an insect. | our understanding of how food modulates animal phenotypes and mediate trade-offs between life-history traits has benefited greatly from the study of combinations of nutritional and non-nutritional food components, such as plant secondary metabolites. we used a fruit fly pest, anastrepha ludens, to examine phenotypic variation across larval, pupal and adult stages as a function of larval food with varying nutrient balance and content of chlorogenic acid, a secondary metabolite. larval insects tha ... | 2016 | 27406923 |
| selection by mating competitiveness improves the performance of anastrepha ludens males of the genetic sexing strain tapachula-7. | the sexual performance of anastrepha ludens males of the tapachula-7 genetic sexing strain, produced via selection based on mating success, was compared with that of males produced without selection in competition with wild males. mating competition, development time, survival, mass-rearing quality parameters and pheromone production were compared. the results showed that selection based on mating competitiveness significantly improved the sexual performance of offspring. development time, survi ... | 2016 | 27215583 |
| tetracycline-suppressible female lethality and sterility in the mexican fruit fly, anastrepha ludens. | the sterile insect technique (sit) involves the mass release of sterile males to suppress insect pest populations. sit has been improved for larval pests by the development of strains for female-specific tetracycline-suppressible (tet-off) embryonic lethal systems for male-only populations. here we describe the extension of this approach to the mexican fruit fly, anastrepha ludens, using a tet-off driver construct with the tet-transactivator (tta) under embryo-specific anastrepha suspensa serend ... | 2016 | 27135433 |
| the male ejaculate as inhibitor of female remating in two tephritid flies. | the inhibition of female receptivity after copulation is usually related to the quality of the first mating. males are able to modulate female receptivity through various mechanisms. among these is the transfer of the ejaculate composed mainly by sperm and accessory gland proteins (agps). here we used the south american fruit fly anastrepha fraterculus (where agp injections inhibit female receptivity) and the mexican fruit fly anastrepha ludens (where injection of agps failed to inhibit receptiv ... | 2016 | 26949132 |
| natural parasitism in fruit fly (diptera: tephritidae) populations in disturbed areas adjacent to commercial mango orchards in chiapas and veracruz, mexico. | to determine the natural parasitism in fruit fly populations in disturbed areas adjacent to commercial mango orchards in the states of chiapas and veracruz, mexico, we recorded over one year the fruit fly-host associations, fly infestation, and parasitism rates in backyard orchards and patches of native vegetation. we also investigated the relationship between fruit size, level of larval infestation, and percent of parasitism, and attempted to determine the presence of superparasitism. the most ... | 2016 | 26850034 |
| antipredator behavior of the new mass-reared unisexual strain of the mexican fruit fly. | tephritid pests controlled through the sterile insect technique (sit) are mass-reared and subsequently released in affected areas. several quality parameters are currently used to test adults, but none take into account interactions with a predator. when sterile males are released in the field, they will need to avoid predators until they reach sexual maturity and survive long enough to mate with wild females. spiders are one of the most common predators that flies may encounter in release sites ... | 2016 | 26640068 |
| can consumption of antioxidant rich mushrooms extend longevity?: antioxidant activity of pleurotus spp. and its effects on mexican fruit flies' (anastrepha ludens) longevity. | the variability of antioxidant capacity of 14 strains of the edible oyster mushroom pleurotus spp. was determined, and the effect of selected mushroom supplements on the longevity of the mexican fruit fly, anastrepha ludens, was evaluated. the antioxidant capacity of the fruiting bodies was determined by three different methods, measuring the free radical scavenging activity of methanolic extracts, the oh radical scavenging capacity, and the total phenol content. the inhibition percentage of the ... | 2015 | 26499817 |
| target-invariant aggressive display in a tephritid fly. | fruit flies of the family tephritidae (diptera) use specialized wing displays in aggressive encounters with conspecifics and predators. these displays, called supination displays, have been thought to deter attacks from one of their main predators, spiders of the family salticidae. however, there is no information whether the display is qualitatively or quantitatively different when the target is a conspecific or a predator. in this study, we sought to determine whether flies vary their displays ... | 2015 | 26478252 |
| a new adult diet formulation for sterile males of anastrepha ludens and anastrepha obliqua (diptera: tephritidae). | a new adult diet formulation was evaluated for sterile anastrepha ludens (loew) and anastrepha obliqua (macquart) males at the emergence and release facility of fruit flies in mexico. the formulation consists of hydrolyzed protein, sugar, juvenile hormone analogue methoprene, and water. the proportion of the ingredients between the solute (4% hydrolyzed protein and 96% sugar) and solvent (10% methoprene and 90% water) was 5:1. this new formulation was called the 1:24 formulation. the main object ... | 2015 | 26470310 |
| regional-scale spatio-temporal analysis of anastrepha ludens (diptera: tephritidae) populations in the citrus region of santa engracia, tamaulipas, mexico. | large citrus areas in tamaulipas are affected by anastrepha ludens (loew) populations. here we report the findings of a spatio-temporal analysis of a. ludens on an extended citrus area from 2008-2011 aimed at analyzing the probabilities of a. ludens infestation and developing an infestation risk classification for citrus production. a geographic information system combined with the indicator kriging geostatistics technique was used to assess a. ludens adult densities in the spring and fall. duri ... | 2015 | 26470306 |
| economic and highly effective trap-lure combination to monitor the mexican fruit fly (diptera: tephritidae) at the orchard level. | monitoring population levels of the mexican fruit fly, anastrepha ludens (loew) (diptera: tephritidae), at the orchard level prior and during the fruit ripening period can result in significant savings in the costs of managing this pestiferous insect. unfortunately, to date, no highly effective and economically viable trap is available to growers. to move toward this goal, trap-lure combinations were evaluated in trials performed in citrus orchards in veracruz, mexico. ceratrap, an enzymatic hyd ... | 2015 | 26470304 |
| phylogeographic structure in anastrepha ludens (diptera: tephritidae) populations inferred with mtdna sequencing. | anastrepha ludens (loew) (diptera: tephritidae), the mexican fruit fly, is a major pest of citrus and mango. it has a wide distribution in mexico and central america, with infestations occurring in texas, california, and florida with origins believed to have been centered in northeastern mexico. this research evaluates the utility of a sequence-based approach for two mitochondrial (coi and nd6) gene regions. we use these markers to examine genetic diversity, estimate population structure, and id ... | 2015 | 26470261 |
| comparison of hydrolyzed protein baits and various grape juice products as attractants for anastrepha fruit flies (diptera: tephritidae). | mexican fruit flies, anastrepha ludens (loew; diptera: tephritidae), have traditionally been trapped in citrus orchards in mexico using protein hydrolysates as bait. recently, ceratrap(®), an enzymatic hydrolyzed protein, has emerged as an effective lure for monitoring a. ludens at the orchard level and is currently being used by growers in the region of veracruz. several studies have revealed that grape juice is highly attractive to a. ludens, and recent work supports its potential use for regu ... | 2016 | 26396199 |
| population dynamics of anastrepha ludens (loew) (diptera: tephritidae) on citrus areas in southern tamaulipas, mexico. | an analysis of adult population fluctuation of anastrepha ludens (loew) was performed in southern tamaulipas, mexico from 2008 to 2011. the aim was to analyze population dynamics of a. ludens and its relationships with climatic factors in the citrus region of llera, tamaulipas, mexico. population densities were weekly examined to identify variation through the year and study period. four periods were identified according to population size, amplitude, host availability and season of the year. th ... | 2015 | 26371365 |
| limits to the host range of the highly polyphagous tephritid fruit fly anastrepha ludens in its natural habitat. | anastepha ludens (diptera: tephritidae) is a highly polyphagous fruit fly that is able to develop in a wide range of hosts. understanding the limits of this pest's host range could provide valuable information for pest management and plant breeding for pest resistance. previous studies have shown that guavas (psidium guajava (myrtaceae) l.), are not attacked under natural conditions by a. ludens. to understand this phenomenon, guavas were exposed to natural infestation by a. ludens and to other ... | 2015 | 26343267 |
| histopathological changes in third-instar and adult anastrepha ludens (diptera: tephritidae) after in vitro heat treatment. | the mexican fruit fly, anastrepha ludens loew (diptera: tephritidae), is one of the most harmful pests of mango causing direct damage by oviposition on the fruit pulp. mango for export is subjected to hydrothermal treatment as a quarantine method for the control of this pest, but exposure to heat for long periods of time reduces considerably the quality and shelf-life of treated fruit. the aim of this work was to study morphological changes of third-instar larvae and adults of a. ludens after in ... | 2015 | 25797796 |
| development, genetic and cytogenetic analyses of genetic sexing strains of the mexican fruit fly, anastrepha ludens loew (diptera: tephritidae). | anastrepha ludens is among the pests that have a major impact on méxico's economy because it attacks fruits as citrus and mangoes. the mexican federal government uses integrated pest management to control a. ludens through the programa nacional moscas de la fruta [national fruit fly program, sagarpa-senasica]. one of the main components of this program is the sterile insect technique (sit), which is used to control field populations of the pest by releasing sterile flies. | 2014 | 25472896 |
| male-specific y-linked transgene markers to enhance biologically-based control of the mexican fruit fly, anastrepha ludens (diptera: tephritidae). | reliable marking systems are critical to the prospective field release of transgenic insect strains. this is to unambiguously distinguish released insects from wild insects in the field that are collected in field traps, and tissue-specific markers, such as those that are sperm-specific, have particular uses such as identifying wild females that have mated with released males. for tephritid fruit flies such as the mexican fruit fly, anastrepha ludens, polyubiquitin-regulated fluorescent protein ... | 2014 | 25472528 |
| sexual behavior and male volatile compounds in wild and mass-reared strains of the mexican fruit fly anastrepha ludens (diptera: tephritidae) held under different colony management regimes. | we compared the calling and mating behavior and volatile release of wild males anastrepha ludens (loew) with males from 4 mass-reared strains: (i) a standard mass-reared colony (control), (ii) a genetic sexing strain (tap-7), (iii) a colony started from males selected on their survival and mating competitiveness abilities (selected), and (iv) a hybrid colony started by crossing wild males with control females. selected and wild males were more competitive, achieving more matings under field cage ... | 2016 | 25339372 |
| effects of size, sex and teneral resources on the resistance to hydric stress in the tephritid fruit fly anastrepha ludens. | water availability is recognized as one of the most important factors in the distribution and activity of terrestrial organisms. in the case of insects, hydric stress imposes a major challenge for survival because of the small surface-area-to-volume ratio they exhibit. in general, stress resistance is expected to co-vary positively with size; however, this pattern can become obscured in insects that exhibit sexual size dimorphism, as sexes differ in size and/or shape and have dissimilar resource ... | 2014 | 25239667 |
| female receptivity in anastrepha ludens (diptera: tephritidae) is not modulated by male accessory gland products. | in numerous insects, accessory gland products (agps) transferred from males to females during mating are responsible for female sexual inhibition, but these products can be affected by male condition. here, we investigated the effect of agps on female receptivity of the mexican fruit fly anastrepha ludens (loew), and the effect of male and female strain, male irradiation, agp dose and sexual activity period on the effectiveness of these agps in inhibiting female remating. injections of aqueous e ... | 2014 | 25205478 |
| insect thermotolerance comparing host infestation methods: anastrepha ludens (diptera: tephritidae) reared in grapefruit or diet. | research on insect control should be conducted in a manner that mimics as closely as is feasible its commercial application in all of its practicably conceivable forms. when significant deviations from commercial application are used in research, the effect of the deviations on efficacy should be evaluated. pest control techniques are sometimes based on research that used untested assumptions about variables that might affect efficacy. for example, some phytosanitary treatments are based on rese ... | 2014 | 25195425 |
| predation of anastrepha ludens (diptera: tephritidae) by norops serranoi (reptilia: polychrotidae): functional response and evasion ability. | the mexican fruit fly, anastrepha ludens (loew), is one of the 10 worldwide more important fruit crop pests. orchards of southeastern chiapas also shelter the tree-dwelling lizard norops serranoi (köhler), which likely prey upon these flies. in standard laboratory conditions, we determined the functional response of four male and four female lizards on mass-reared fruit flies. we used a general logistic analysis of proportion of killed prey versus available prey to determine the shape of the fun ... | 2014 | 24874158 |
| precooling treatments induce resistance of anastrepha ludens eggs to quarantine treatments of high-pressure processing combined with cold. | high-pressure processing (hpp) combined with heat or cold has been proposed as an alternative quarantine process for mexican fruit fly anastrepha ludens loew (diptera: tephritidae). hpp conditions at levels higher than 100 mpa applied to destroy eggs and larvae can also affect the postharvest physiology of the fruits. hpp at pressure levels in the range of 50-100 mpa is recommended. eggs have been reported as being more resistant to hpp than larvae. therefore, the objective of this study was to ... | 2014 | 24772540 |
| efficacy of commercial traps and food odor attractants for mass trapping of anastrepha ludens (diptera: tephritidae). | one of the most important factors for the success of a mass trapping strategy to control a fruit fly involves the selection of an effective trap-lure combination. because different species of fruit flies respond differently to the physical characteristics of a trap and to bait volatiles, the evaluation of commercial traps and lures that have proved useful against other tephtrids is necessary to determine their efficacy for mass trapping of anastrepha ludens (loew) (diptera: tephritidae). under c ... | 2014 | 24665702 |
| mixture-amount design and response surface modeling to assess the effects of flavonoids and phenolic acids on developmental performance of anastrepha ludens. | host plant resistance to insect attack and expansion of insect pests to novel hosts may to be modulated by phenolic compounds in host plants. many studies have evaluated the role of phenolics in host plant resistance and the effect of phenolics on herbivore performance, but few studies have tested the joint effect of several compounds. here, we used mixture-amount experimental design and response surface modeling to study the effects of a variety of phenolic compounds on the development and surv ... | 2014 | 24619732 |
| the effect of irradiation and mass rearing on the anti-predator behaviour of the mexican fruit fly, anastrepha ludens (diptera: tephritidae). | fruit flies (diptera: tephritidae) are major pests worldwide. the sterile insect technique, where millions of flies are reared, sterilized by irradiation and then released, is one of the most successful and ecologically friendly methods of controlling populations of these pests. the mating behaviour of irradiated and non-irradiated flies has been compared in earlier studies, but there has been little attention paid to the anti-predator behaviour of mass-reared flies, especially with respect to w ... | 2014 | 24345386 |
| tapachula-7, a new genetic sexing strain of the mexican fruit fly (diptera: tephritidae): sexual compatibility and competitiveness. | a new genetic sexing strain of the mexican fruit fly, anastrepha ludens (loew), was evaluated in tests of sexual behavior to determine its possible application using the sterile insect technique. tests in field cages measuring time to sexual maturity, compatibility with wild flies, and competitiveness were compared between the genetic sexing strain, tapachula-7, and the mass-reared standard bisexual strain. the results indicated that the onset of sexual maturity was similar for both laboratory s ... | 2013 | 23786061 |
| insecticidal activity of raw ethanolic extracts from magnolia dealbata zucc on a tephritid pest. | ethanolic extracts from magnolia dealbata (zucc.) (magnoliaceae); leaves, bark, seeds, sarcotesta and flowers were evaluated for insecticidal activity against adults of the mexican fruit fly, anastrepha ludens (loew) (diptera: tephritidae). using feeding bioassays composed from sugar-extract mixtures, only the extract from sarcotesta indicated insecticidal activity against the flies. the extracts from the other four plant tissues (leaves, bark, seeds and flowers) did not manifest any biological ... | 2013 | 23581691 |
| effect of high hydrostatic pressure on the physiology of manila mango. | manila mangoes (mangifera indica l.) have sensory characteristics that make them attractive for consumption as a fresh fruit. a large portion of the annual yield of this fruit is infested by the mexican fruit fly (anastrepha ludens), adversely impacting the quality of the crop. hence, it is necessary to develop economically viable postharvest treatments to reduce the damage caused by this insect. currently, high hydrostatic pressures are used to guarantee the safety of many processed foods. the ... | 2013 | 23504511 |
| high hydrostatic pressure induces synthesis of heat-shock proteins and trehalose-6-phosphate synthase in anastrepha ludens larvae. | the mexican fruit fly (anastrepha ludens) is responsible for losses of up to 25% of crops such as mango and citrus fruits in central america and méxico. the larval life cycle of a. ludens comprises three stages with a duration ranging from 3 to 8 days. because of the damage caused by a. ludens, several methods of control have been studied and implemented. high hydrostatic pressures (hhp) are currently applied to foods and it is now proposed to be employed to inactivate eggs and larvae of a. lude ... | 2013 | 23361865 |
| survey of heritable endosymbionts in southern mexico populations of the fruit fly species anastrepha striata and a. ludens. | heritable endosymbiotic bacteria associated with insects are ubiquitous and taxonomically diverse. many of these endosymbionts influence the fitness of their hosts and/or manipulate their host reproduction. exploiting the effects of endosymbionts on hosts for pest control is a growing research area, but requires knowledge of endosymbionts associated with the target pest population. in this study, we used molecular methods to screen southern mexico populations of two species of tephritid fruit fl ... | 2012 | 22961037 |
| host status of meyer and eureka lemons for anastrepha ludens. | host status for mexican fruit fly (anastrepha ludens (loew)) was examined under laboratory conditions in cage infested eureka and meyer lemons. our approach was to allow females to oviposit on the two cultivars in separate laboratory cages with aluminum foil covering to restrict the areas where females had access to fruit surface. fruit of each cultivar were placed in covered trays for incubations and at approximately weekly intervals, fruit were removed, dissected, and live and dead eggs and la ... | 2012 | 22606804 |
| residual control and lethal concentrations of gf-120 (spinosad) for anastrepha spp. (diptera: tephritidae). | the objective of this study was to determine the relationship between residual time of gf-120 (spinosad) treatment and mortality in three species of anastrepha schiner. concentrations of 96, 72, 48, and 24 ppm were aged on mango leaves under field conditions for 0, 3, 7, 10, 14, 17, and 21 d after application. we found that anastrepha ludens, a. obliqua, and a. serpentina were highly sensitive to spinosad. the effects of spinosad were not reduced over the 4 d after the initial application, even ... | 2011 | 22299349 |
| superparasitism in the fruit fly parasitoid diachasmimorpha longicaudata (hymenoptera: braconidae) and the implications for mass rearing and augmentative release. | superparasitism, a strategy in which a female lays eggs in/on a previously parasitized host, was attributed in the past to the inability of females to discriminate between parasitized and non-parasitized hosts. however, superparasitism is now accepted as an adaptive strategy under specific conditions. in fruit fly parasitoids, superparasitism has mainly been studied as concerns the new association between diachasmimorpha longicaudata (ashmead) (hymenoptera: braconidae) and the mexican fruit fly ... | 2012 | 26466718 |
| a novel attractant for anastrepha ludens (diptera: tephritidae) from a concord grape product. | an attractant for mexican fruit fly, anastrepha ludens (loew) (diptera: tephritidae), was developed from a commercial product called sabor uva containing processed concord grape juice. the principal volatile components of sabor uva aroma were identified and an aqueous mixture of 15 components that was gas chromatographically similar to sabor uva was prepared. this mixture was equivalent to sabor uva in attractiveness by using wind-tunnel bioassays. after deleting chemicals that did not contribut ... | 2011 | 21882683 |
| light conditions affect sexual performance in a lekking tephritid fruit fly. | sensory systems are very susceptible to early environment experience. mating success depends on the transmission of information from the signaller to the receiver, which means that sensory biases caused by developmental environment are likely to affect sexual selection. we investigated the impact of the developmental visual environment (light spectrum) on male copulation behaviour and female preference in the lekking tephritid anastrepha ludens. we reared flies in four different light spectrum c ... | 2011 | 21753054 |
| efficacy of ground spray application of bait sprays with malathion or spinosad on mexican fruit fly (diptera: tephritidae) in texas citrus. | an important component in the mexican fruit fly, anastrepha ludens (loew) (diptera: tephritidae), eradication program is bait spray application to knock down localized a. ludens infestations enhancing the sterile to wild fly ratio and increasing the effectiveness of the sterile insect release program. efficacy tests were conducted using spray equipment that applies ultralow application rates of malathion nu-lure or gf-120 spinosad by ground into citrus. trapit dome traps located in fields treate ... | 2011 | 21510192 |
| resistance of mexican fruit fly to quarantine treatments of high-pressure processing combined with cold. | mexican fruit fly anastrepha ludens loew (diptera: tephritidae) is one of the most important insects infesting fruits. although high pressure has been proposed as an alternative quarantine process for this pest, conditions applied to destroy eggs and larvae can also damage the fruits. the objective of this study was to assess the biological viability of a. ludens eggs treated by high-pressure processing at 0°c, establishing whether nondestroyed eggs and larvae preserved their ability to develop ... | 2011 | 21492022 |
| prolongevity effects of a botanical with oregano and cranberry extracts in mexican fruit flies: examining interactions of diet restriction and age. | botanicals rich with phytochemicals have numerous health benefits. dietary restriction (dr) extends lifespan in diverse species. we previously demonstrated that an oregano-cranberry (oc) mixture can promote longevity in the mexican fruit fly (mexfly, anastrepha ludens loew). however, little is known about the interaction between botanicals and dr, and the age-dependent effect of botanicals on lifespan and reproduction. here we investigated these issues by feeding mexflies a full or dr diet suppl ... | 2012 | 21455602 |
| molecular technologies to improve the effectiveness of the sterile insect technique. | the application of the sterile insect technique (sit) in area-wide integrated pest management (aw-ipm) programmes continues to increase. however, programme efficiency can still be considerably enhanced when certain components of the technology are improved, such as the development of improved strains for mass rearing and release. these include strains that (1) produce only male insects for sterilization and release and (2) carry easily identifiable markers to identify released sterile insects in ... | 2011 | 21258957 |