comparative evaluation of spinosad and phloxine b as toxicants in protein baits for suppression of three fruit fly (diptera: tephritidae) species.spinosad and phloxine b are two more environmentally friendly alternative toxicants to malathion for use in bait sprays for tephritid fruit fly suppression or eradication programs. laboratory tests were conducted to assess the relative toxicity of these two toxicants for melon fly, bactrocera cucurbitae coquillett; oriental fruit fly, bactrocera dorsalis hendel; and mediterranean fruit fly, ceratitis capitata (wiedemann) females. field tests also were conducted with all three species to compare ...200516156568
methoprene application and diet protein supplementation to male melon fly, bactrocera cucurbitae, modifies female remating behavior.methoprene (an analogue of juvenile hormone) application and feeding on a protein diet is known to enhance male melon fly, bactrocera cucurbitae coquillett (diptera: tephritidae), mating success. in this study, we investigated the effect of these treatments on male b. cucurbitae's ability to inhibit female remating. while 14-d-old females were fed on protein diet, 6-d-old males were exposed to one of the following treatments: (i) topical application of methoprene and fed on a protein diet; (ii) ...201424376160
synomone or kairomone?--bulbophyllum apertum flower releases raspberry ketone to attract bactrocera fruit flies.bulbophyllum apertum flower (orchidaceae) releases raspberry ketone (rk) in its fragrance, which attracts males of several fruit fly species belonging to the genus bactrocera. besides rk as a major component, the flower contains smaller amounts of 4-(4-hydroxylphenyl)-2-butanol, plus two minor volatile components, veratryl alcohol and vanillyl alcohol. within the flower, the lip (labellum) had the highest concentration of rk with much smaller quantities present in petals; other flower parts had ...200515898497
identification and preliminary characterization of chemosensory perception-associated proteins in the melon fly bactrocera cucurbitae using investigation into proteins involved in chemosensory perception in the melon fly, bactrocera cucurbitae (diptera: tephritidae) is described here using a newly generated transcriptome dataset. the melon fly is a major agricultural pest, widely distributed in the asia-pacific region and some parts of africa. for this study, a transcriptome dataset was generated using rna extracted from 4-day-old adult specimens of the melon fly. the dataset was assembled and annotated via gene ontology (go) ana ...201626752702
insecticidal activity of the leaf essential oil of peperomia borbonensis miq. (piperaceae) and its major components against the melon fly bactrocera cucurbitae (diptera: tephritidae).the essential oil from the leaves of peperomia borbonensis from réunion island was obtained by hydrodistillation and characterized using gc-fid, gc/ms and nmr. the main components were myristicin (39.5%) and elemicin (26.6%). the essential oil (eo) of peperomia borbonensis and its major compounds (myristicin and elemicin), pure or in a mixture, were evaluated for their insecticidal activity against bactrocera cucurbitae (diptera: tephritidae) using a filter paper impregnated bioassay. the concen ...201728273402
species diversity within a community of the curcurbit fruit flies bactrocera cucurbitae, dacus ciliatus, and dacus demmerezi roosting in corn borders near cucurbit production areas of reunion order to better control fruit flies (diptera: tephritidae) attacking cucurbitaceae on reunion island (21°6 s/ 55°36 e), biological characteristics (seasonal fluctuation, relative abundance, sex ratio) of communities roosting in corn borders were investigated. the study was conducted in austral summer across a range of altitudes (750-1150 m) corresponding to the main areas of cucurbit cropping. living adults were recorded roosting on corn planted within or around cucurbit fields. results showe ...201222958393
the complete mitochondrial genome of the melon fly bactrocera cucurbitae (diptera: tephritidae).the mitochondrial genome of bactrocera cucurbitae, a representative of the tephritid family, was completely sequenced for the first time. the b. cucurbitae genome is a double-stranded circular molecule of 15,825 bp long, including the entire set of the 37 genes. the 72.9% a+t content and 0.047 at-skew are within the range of the known dipteran genomes. comparative analyses showed that dipteran mitochondrial protein-coding genes present complex evolutionary patterns. some of the codon families we ...201322931686
population genetic structure of the melon fly, bactrocera cucurbitae (coquillett) (diptera: tephritidae) based on mitochondrial cytochrome oxidase (coi) gene sequences.population genetic structure of melon fly analysed with mitochondrial cytochrome oxidase i gene suggested that melon fly populations across the globe is homogeneous with non-significant variation of 0.000-0.003 base substitutions per site. test isolates representing various geographic situations across the world were placed in 26 mitochondrial haplotypes based on variations associated with a maximum of three mutational steps and the predominant haplotype i.e. h1 was present in all melon fly popu ...201222660946
monitoring resistance to spinosad in the melon fly (bactrocera cucurbitae) in hawaii and taiwan.spinosad is a natural insecticide with desirable qualities, and it is widely used as an alternative to organophosphates for control of pests such as the melon fly, bactrocera cucurbitae (coquillett). to monitor the potential for development of resistance, information about the current levels of tolerance to spinosad in melon fly populations were established in this study. spinosad tolerance bioassays were conducted using both topical applications and feeding methods on flies from field populatio ...201222629193
response of melon fly (diptera: tephritidae) to weathered splat-spinosad-cue-lure.studies were conducted in hawaii to measure attraction of male melon fly, bactrocera cucurbitae (coquillett) (diptera: tephritidae), to splat-cue-lure (c-l) and splat-melo-lure (m-l) (raspberry ketone formate). direct field comparisons of splat-c-l and splat-m-l at low (5%) and high (20%) concentrations indicated few differences in attraction over a 15-wk period. subsequently, only splat-spinosad-c-l (5%) was compared with min-u-gel c-l with naled (standard used in california) in weathering stud ...201021061958
macrogeographic population structuring in the cosmopolitan agricultural pest bactrocera cucurbitae (diptera: tephritidae).the macrogeographic population structure of the agricultural pest bactrocera cucurbitae (diptera: tephritidae) was investigated in order to identify the geographic origin of the species and reconstruct its range expansion. individuals of b. cucurbitae were collected from 25 worldwide-distributed localities (n = 570) and genotyped at 13 microsatellite loci. the bayesian clustering reveals that b. cucurbitae can be subdivided into five main groups corresponding to populations from (i) the african ...201020561200
effects of the juvenile hormone analogue methoprene and dietary protein on male melon fly bactrocera cucurbitae (diptera: tephritidae) mating success.the effect of access to dietary protein (p) and the topical application of a juvenile hormone analogue (methoprene (m)) on mating behaviour of male melon fly bactrocera cucurbitae was assessed in the laboratory and in field cages. age, dietary protein and methoprene application increased the mating success and influenced the mating behaviour. treatment with methoprene (m+) to protein-deprived (p-) males had only a modest effect on the acceleration of sexual maturity, but application of methopren ...201020438735
the clock gene cryptochrome of bactrocera cucurbitae (diptera: tephritidae) in strains with different mating times.differences in mating time between populations can give rise to premating reproductive isolation. tephritid fruit flies exhibit large variation in mating time among intra- or inter-specific populations. we previously cloned the clock gene period from two strains of melon fly, bactrocera cucurbitae; in one the individuals mate early during the day, whereas in the other the individuals mate later. these strains were originally established by divergent artificial selection for developmental time, ' ...201020010960
new contributions towards the understanding of the phylogenetic relationships among economically important fruit flies (diptera: tephritidae).fruit flies (diptera: tephritidae) are a species-rich and economically important group. the phylogenetic relationships among the many taxa are still to be fully resolved and the monophyly of several groups is still to be confirmed. this paper reports a study of the phylogenetic relationships among 23 economically important tephritid species (representing several major lineages of the family) which examines the sequence of a region of mitochondrial dna encompassing the cytb, trna(ser) and nd1 gen ...200616768816
movement of sterile male bactrocera cucurbitae (diptera: tephritidae) in a hawaiian agroecosystem.the melon fly, bactrocera cucurbitae coquillett, invaded the hawaiian island chain in 1895. in 1999, a program sponsored by the usda-ars to control melon fly and other tephritid pests in hawaii over a wide area was initiated on the islands of hawaii, maui, and oahu. to control these flies in an areawide setting, understanding how flies move within the landscape is important. to explore the movement of this fly, we examined the movement of marked, male, sterile, laboratory-reared b. cucurbitae on ...200516334322
male courtship song in circadian rhythm mutants of bactrocera cucurbitae (tephritidae: diptera).pulse train intervals (pti) of courtship song were differentiated between circadian clock mutants of the melon fly, bactrocera cucurbitae (coquillett) (tephritidae: diptera). we analysed the male mating song of b. cucurbitae flies of two mutant strains that differed in circadian locomotor rhythm by a labview programming system. flies with a short circadian rhythm (s-strain) had shorter pti than those with a long circadian rhythm (l-strain) in the two age groups tested, young and old. young flies ...200415037096
eradication of the melon fly, bactrocera cucurbitae, in japan: importance of behavior, ecology, genetics, and evolution.the melon fly, bactrocera cucurbitae, is a destructive insect of cucurbit and other fruits. it invaded the southwestern islands of japan from 1919 to 1974. the sterile insect technique (sit) was successfully applied from 1972 to 1993 to eradicate the melon fly. technical research into sit functions, such as suppression of density, mass-rearing, sterilization, shipment, release, evaluation of efficacy, and quality control of mass-reared insects, was conducted for this eradication project. fundame ...200414651467
polytene chromosome maps of the melon fly bactrocera cucurbitae (diptera: tephritidae).standard photographic maps of the polytene chromosomes are presented for the melon fly bactrocera cucurbitae, a serious pest of fleshy fruits and vegetables. five larval salivary gland polytene chromosomes (10 polytene arms) were isolated, and their characteristic features and landmarks have been recognized. banding patterns of each of the polytene arms are presented, where variation in band intensity and puffs appear to reflect fundamental differences in chromosomes. the whole polytene genome h ...200212502263
the period gene and allochronic reproductive isolation in bactrocera cucurbitae.clock genes that pleiotropically control circadian rhythm and the time of mating may cause allochronic reproductive isolation in the melon fly bactrocera cucurbitae (coquillett) (diptera: tephritidae). flies with a shorter circadian period (ca. 22 h of locomotor activity rhythm) mated 5 h earlier in the day than those with a longer circadian period (ca. 30 h). mate-choice tests demonstrated significant pre-mating isolation between populations with short and long circadian periods. pre-mating iso ...200212495490
assessment of sauromatum guttatum lectin toxicity against bactrocera cucurbitae.lectins are proteins that bind specifically to foreign glycans. due to this binding property, these molecules have potential application as bioinsecticidal tools replacing conventional chemical insecticides. the present study involved purification of phytolectin from the tubers of sauromatum guttatum by affinity chromatography on asialofetuin-linked silica matrix. the purity of the sample was checked by sds-page at ph 8.3. purified lectin was incorporated in the artificial diet of a dipteran mod ...201526688959
cage study of spinosad-based bait efficacy on bactrocera cucurbitae, dacus ciliatus, and dacus demmerezi (diptera: tephritidae) in reunion island.on reunion island, bactrocera cucurbitae (coquillett), dacus ciliatus (loew), and dacus demmerezi (bezzi) cause severe damage to cucurbit crops. the aim of the study was to test in field cages the effectiveness of synéis-appât (dow agrosciences), a spinosad-based bait (0.02% of spinosad) on both attraction and mortality of young adults (6-9 d old) of these three species. the effects of gender were also evaluated for all species whereas the effects of protein deprivation were tested with b. cucur ...201222928317
circadian rhythm and time of mating in bactrocera cucurbitae (diptera: tephritidae) selected for age at reproduction.chrono-biological traits were changed by selecting for life-history traits via a genetic linkage controlling both time-related behavioural and life-history traits. behavioural traits were compared between lines selected for young (y-lines) and old (o-lines) age at reproduction in the melon fly, bactrocera cucurbitae (coquillett). adults from o-lines, which survive longer than flies from y-lines, mated later in the day and had a longer period of circadian rhythm in the locomotor activity than tho ...200211920139
genetic correlations between life-history and behavioral traits can cause reproductive isolation.reproductive isolation may often evolve as an indirect (pleiotropic) consequence of populations adapting to different environments or habitats. for example, niches that are temporally or seasonally offset can select for organisms with different developmental characteristics. these developmental differences can inadvertently cause reproductive isolation by a variety of means including shifts in mating activity patterns. here, we show a genetic correlation between a life-history trait (development ...199928565193
correlated responses to selection for developmental period in bactrocera cucurbitae (diptera: tephritidae): time of mating and daily activity rhythms.comparisons of "time of mating" (the time copulation begins) between lines selected for short and long developmental periods have been made in the melon fly, bactrocera cucurbitae. these comparisons showed that longer development periods were associated with later initiation of mating. crosses were also made between selected lines to ascertain the genetic basis of developmental period and time of mating. comparisons of daily activity rhythms for four types of behavior (locomotion, preening, feed ...19979336086
genetic trade-off between early fecundity and longevity in bactrocera cucurbitae (diptera: tephritidae).the response to selection on age at reproduction was measured to test for a genetic trade-off between early fecundity and longevity in the melon fly bactrocera cucurbitae (coquillett). three replicate lines were selected for propagation by breeding from young (y-lines) and old (o-lines) adults, respectively. selection was continued for 24 and 9 generations for y- and o-lines, respectively. females from o-lines lived longer than y-line females as an indirect response to selection, indicating that ...199716397642
accumulation ofdendrobium superbum (orchidaceae) fragrance in the rectal glands by males of the melon fly,dacus cucurbitae.4-(4-hydroxyphenyl)-2-butanone was characterized from flowers of the orchiddendrobium superbum as a specific attractant factor for the male melon fly,dacus cucurbitae. the male flies compulsively licked the flower surface and sequestered the compound in significant quantities in their rectal glands. the compound was detected within 6 hr after ingestion and was retained for more than six days in the rectal gland sacs.199324249012
age-related response of male melon fliesdacus cucurbitae (diptera: tephritidae) to cue-lure.laboratory-reared and wild adults of the melon fly,dacus cucurbitae coquillett, were tested for response to cue-lure at various ages. virgin laboratory (4, 6, 8, 10, 12, and 14 days old) and wild (10, 12, 14, 16, 18, 20, and 22 days old) flies were released into outdoor field cages and trapped from 0800 until 1600 hr. response of males to cue-lure increased with age and corresponded with sexual maturity for each strain. females of both strains were relatively nonresponsive to cue-lure. failure t ...199124258641
an in vitro study of the non-specific esterases of the melon fly, dacus cucurbitae coq. and their reactions with organophosphate and carbamate compounds. 19768263
effect of oxytetracycline and sulphanilamide on the reproductive organs and fecundity of melon fly, dacus cucurbitae coq. 20131233354
polyteny and salivary gland secretion in the melon fly, dacus cucurbitae. 19725045175
deuteration of the melon fly attractant, cue-lure, and its effect on olfactory response and infra-red absorption. 19685733972
new synthetic lures for the male melon fly.several para-substituted derivatives of 4-phenyl-2-butanone (i) have proved to be powerful attractants for the male melon fly (dacus clucurbitae). these compounds, unlike anisylacetone, heretofore the best lure, attract even newly emerged flies. the most potent analog is 4-(p-acetoxyphenyl)-2-butanone (ii), which also strongly attracts dacus ochrosiae males.196017808098
weathering trials of amulet cue-lure and amulet methyl eugenol "attract-and-kill" stations with male melon flies and oriental fruit flies (diptera: tephritidae) in hawaii.amulet c-l (cue-lure) and amulet me (methyl eugenol) molded paper fiber "attract-and-kill" dispensers containing fipronil were tested under hawaiian weather conditions against bactrocera cucurbitae (coquillett) (melon fly) and bactrocera dorsalis (hendel) (oriental fruit fly), respectively. in paired tests (fresh versus weathered), c-l dispensers were effective for at least 77 d, whereas me dispensers were effective for at least 21 d. thus, c-l dispensers exceeded, whereas me dispensers did not ...200516334323
combining cue-lure and methyl eugenol in traps significantly decreases catches of most bactrocera, zeugodacus and dacus species (diptera: tephritidae: dacinae) in australia and papua new guinea.male fruit fly attractants, cue-lure (cl) and methyl eugenol (me), are important in the monitoring and control of pest fruit fly species. species respond to cl or me but not both, and there are conflicting reports on whether combining cl (or its hydroxy analogue raspberry ketone) and me decreases their attractiveness to different species. fruit fly monitoring programs expend significant effort using separate cl and me traps and avoiding lure cross-contamination, and combining the two lures in on ...201729272411
olfactory receptors in the melon fly dacus cucurbitae and the oriental fruit fly dacus dorsalis.male melon flies (dacus cucurbitae) from a colony in hawaii were evaluated for limit of response to the olfactory stimulant raspberry ketone and to more than 40 related molecules. the results were compared with the limits of response of oriental fruit flies (dacus dorsalis) under identical conditions. the nature of the response of the two species to attractive compounds appeared to be identical with regard to orientation, searching, pulsating mouthparts, and compulsive feeding. however, there wa ...198316593321
benzyl acetates as attractants for the male oriental fruit fly, dacus dorsalis, and the male melon fly, dacus cucurbitae.fifty compounds related to benzyl acetate were evaluated quantitatively as attractants to the male oriental fruit fly (dacus dorsalis) and the male melon fly (dacus cucurbitae). thienylmethyl acetate was nearly as attractive as benzyl acetate to both species, but cyclohexylmethyl acetate was completely unattractive, emphasizing the role of the planar aromatic ring in receptor interaction. although benzyl acetate was equally attractive to both species, para substituents invariably reduced attract ...198616593663
an overview of pest species of bactrocera fruit flies (diptera: tephritidae) and the integration of biopesticides with other biological approaches for their management with a focus on the pacific region.fruit flies (diptera: tephritidae) are among the most economically important pest species in the world, attacking a wide range of fruits and fleshy vegetables throughout tropical and sub-tropical areas. these species are such devastating crop pests that major control and eradication programs have been developed in various parts of the world to combat them. the array of control methods includes insecticide sprays to foliage and soil, bait-sprays, male annihilation techniques, releases of steriliz ...026463186
cucumber lure trapping of zeugodacus cucurbitae (diptera: tephritidae) in hawaii and taiwan: longevity and nontargets captures.the melon fly, zeugodacus cucurbitae (coquillett), is a serious pest of tropical horticulture, causing damage to cucurbits, tree fruits, and fruiting vegetables. melon flies are especially attractive to freshly sliced cucumber, and this has led to the identification of a nine-compound kairomone lure that can be used to trap both female and male flies. in this study, a seven-compound lure, containing (z)-6-nonenal, (z)-6-nonen-1-ol, 1-octen-3-ol, (e,z)-2,6-nonadienal, (e)-2-nonenal, hexanal, and ...028025314
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