| toxicity of bacillus thuringiensis to laboratory populations of the olive fruit fly (dacus oleae). | a survey of bacillus thuringiensis recovered from the environments of olive groves in greece was carried out. of 80 soil samples, 24 were found to contain b. thuringiensis with parasporal crystal inclusions; these were tested for toxicity against the olive fruit fly (dacus oleae). mortality levels of larvae caused by the different isolates varied from 7 to 87%. higher levels of mortality were observed if a mixture of relatively pure crystals and spores was used compared with the mortality result ... | 1991 | 1768100 |
| an inapparent infection with a probable picornavirus in several stocks of laboratory reared and naturally occurring populations of dacus oleae gmel. pupae in greece. | pupae from several stocks of wild and laboratory reared olive fruit fly, dacus oleae, were fractionated by a series of steps designed to identify occluded and nonoccluded viruses. two different size of particles were isolated, the smaller of which contained a single-stranded rna molecule of about 2.8 x 10(6). this small rna virus was found to inapparently infect a ceratitis capitata continuous cell line. | 1987 | 3657601 |
| distribution of gene frequency as a test of the theory of the selective neutrality of polymorphisms. | the variation in gene frequency among populations or between generations within a population is a result of breeding structure and selection. but breeding structure should affect all loci and alleles in the same way. if there is significant heterogeneity between loci in their apparent inbreeding coefficients f=s(p) (2)/p(1-p), this heterogeneity may be taken as evidence for selection. we have given the statistical properties of f and shown how tests of heterogeneity can be made. using data from ... | 1973 | 4711903 |
| [the fight against the olive fly. possibility of use, from the hygienic-sanitary point of view, of the n-monomethylamide of o,o-dimethyldithiophosphorylacetic acid (rogor) and of o,o-dimethyl-1-hydroxy-2,2,2-trichloroethylphosphate (dipterex)]. | | 1966 | 5964032 |
| enzymatic preparation of (4r,6r)-4-hydroxy-1,7-dioxaspiro[5.5]undecane and its antipode, the minor component of the olive fruit fly pheromone. | | 1996 | 8733619 |
| a nonoccluded reovirus of the olive fly, dacus oleae. | we have isolated paraspherical viral particles, 60 nm in diameter, from adults of the olive fly (dacus oleae) collected in greece. the virus actively replicated in midgut epithelial cells and in advanced infections virions accumulated in microvilli. they were released in the gut lumen and were very abundant in fly faeces. the virions exhibited the salient features of reoviruses, with an external shell and an internal core with a tubular subunit protruding at each vertex of the icosahedron. the v ... | 1997 | 9010312 |
| insecticidal activity of strains of bacillus thuringiensis on larvae and adults of bactrocera oleae gmelin (dipt. tephritidae). | the olive fly, bactrocera oleae, is the key pest on olives in the mediterranean area. the pest can destroy, in some cases, up to 70% of the olive production. its control relies mainly on chemical treatments, sometimes applied by aircraft over vast areas, with their subsequent ecological and toxicological side effects. bacillus thuringiensis is a spore-forming soil bacterium which produces a protein crystal toxic to some insects, including the orders of lepidoptera, diptera, and coleoptera and ot ... | 1999 | 10486224 |
| porphyrins and related compounds as photoactivatable insecticides. 3. laboratory and field studies. | the exposure of populations of ceratitis capitata (fruit fly), bactrocera oleae (olive fly) and stomoxis calcitrans (house fly) to a bait containing mumolar concentrations of porphyrin-type photosensitizers resulted in a significant accumulation of the porphyrin by the insects and a consequent development of photosensitivity upon exposure to visible light. the photoinsecticidal activity appeared to increase with increasing hydrophobicity of the porphyrin molecule: thus, the amphiphilic dicationi ... | 2000 | 10687383 |
| acquisition of a potential marker for insect transformation: isolation of a novel alcohol dehydrogenase gene from bactrocera oleae by functional complementation in yeast. | the alcohol dehydrogenase genes make up one of the best studied gene families in drosophila, both in terms of expression and evolution. moreover, alcohol dehydrogenase genes constitute potential versatile markers in insect transformation experiments. however, due to their rapid evolution, these genes cannot be cloned from other insect genera by dna hybridization or pcr-based strategies. we have therefore explored an alternative strategy: cloning by functional complementation of appropriate yeast ... | 2000 | 10732677 |
| sunlight-activated insecticides: historical background and mechanisms of phototoxic activity. | several photosensitizing agents, which are activated by illumination with sunlight or artificial light sources, have been shown to be accumulated in significant amounts by a variety of insects when they are administered in association with suitable baits. the subsequent exposure of such insects to uv/visible light leads to a significant drop in survival. of the photosensitizers tested so far, xanthenes (e.g. phloxin b) and porphyrins (e.g. haematoporphyrin) appear to be endowed with the highest ... | 2000 | 10899458 |
| correlation of the insecticidal activity of the bacillus thuringiensis a4 strain against bactrocera oleae (diptera) with the 140-kda crystal polypeptide. | the crystals of the soil-isolated bacillus thuringiensis (bt) strain a4 consist of two polypeptides with molecular mass of 140 kda and 32 kda that exhibit insecticidal activity against adult flies of bactrocera oleae (diptera). plasmid curing applied to this strain resulted in the isolation of several subclones exhibiting alterations in their crystal polypeptides as well as two acrystalliferous subclones. the crystals of subclone 1.1 lacked the 32-kda polypeptide and consisted uniquely of a 140- ... | 2000 | 10977893 |
| the drosophila alcohol dehydrogenase gene may have evolved independently of the functionally homologous medfly, olive fly, and flesh fly genes. | cdnas for alcohol dehydrogenase (adh) isozymes were cloned and sequenced from two tephritid fruit flies, the medfly ceratitis capitata and the olive fly bactrocera oleae. because of the high sequence divergence compared with the drosophila sequences, the medfly cdnas were cloned using sequence information from the purified proteins, and the olive fly cdnas were cloned by functional complementation in yeast. the medfly peptide sequences are about 83% identical to each other, and the corresponding ... | 2001 | 11230533 |
| the mitochondrial genome of the olive fly bactrocera oleae: two haplotypes from distant geographical locations. | the complete sequence of the olive fly (bactrocera oleae) mitochondrial genome has been determined. two independent haplotypes, from flies of distant geographical origin (italy and portugal) were completely sequenced. the molecule is 15815 bp long, and shows the gene content and organization typical of insects, namely thirteen protein coding genes (pcgs) encoding proteins involved in oxidative phosphorylation, two rrnas, twenty-two trnas and a long (949 bp) noncoding region. the genomes of the t ... | 2003 | 14986921 |
| synthesis of haptens and development of an immunoassay for the olive fruit fly pheromone. | an enzyme-linked immunosorbent assay (elisa) for the olive fruit fly pheromone, bactrocera oleae gmelin, was developed. the assay uses polyclonal antibodies, raised in rabbits, against (+/-)-beta-[3-(1,7-dioxaspiro[5.5]undecane)]propionic acid, 2 (hapten i), conjugated to the klh (keyhole limpet hemocyanin) by the carbodiimide method. a second hapten, (+/-)-delta-[3-(1,7-dioxaspiro[5.5]undecane)]butylamine, 3 (hapten ii), after conjugation to a biotin moiety, was used for indirect immobilization ... | 2004 | 15237938 |
| functional constraints of 6-phosphogluconate dehydrogenase (6-pgd) based on sequence and structural information. | the pentose phosphate cycle is considered as a major source of nadph and pentose needed for nucleic acid biosynthesis. 6-phosphogluconate dehydrogenase (6pgd), an enzyme participating in this cycle, catalyzes the oxidative decarboxylation of 6pgd to ribulose 5-phosphate with the subsequent release of co2 and the reduction of nadp. we have determined the amino acid sequence of 6pgd of bactrocera oleae and constructed a three-dimensional model based on the homologous known sheep structure. in a co ... | 2004 | 15553090 |
| 'candidatus erwinia dacicola', a coevolved symbiotic bacterium of the olive fly bactrocera oleae (gmelin). | the taxonomic identity of the hereditary prokaryotic symbiont of the olive fly bactrocera oleae (diptera: tephritidae) was investigated. in order to avoid superficial microbial contaminants and loosely associated saprophytic biota, flies were surface-sterilized at the larval stage and reared under aseptic conditions until adult emergence. b. oleae flies originating from different geographical locations and collected at different times of the year were tested. bacterial isolation was undertaken f ... | 2005 | 16014495 |
| cricket paralysis virus, a potential control agent for the olive fruit fly, dacus oleae gmel. | representatives of several families of insect viruses were tested for growth and pathogenicity in the olive fruit fly, dacus oleae gmel. the viruses included nuclear polyhedrosis viruses, an iridovirus, two picornaviruses, and trichoplusia ni small rna virus (a member of the nudaurelia beta family), in addition to two naturally occurring viruses of the olive fruit fly. two viruses, one of the two picornaviruses (cricket paralysis virus [crpv] and the iridovirus (type 21 from heliothis armigera), ... | 1987 | 16347255 |
| cloning and structural characterization of the 6-phosphogluconate dehydrogenase locus of the medfly ceratitis capitata and the olive fruit fly bactrocera oleae. | the pentose phosphate cycle is considered as a major source of nadph and pentose needed for nucleic acid biosynthesis. 6-phosphogluconate dehydrogenase (6pgd), an enzyme participating in this cycle, catalyzes the oxidative decarboxylation of 6pgd to ribulose 5-phosphate with the subsequent release of co(2) and the reduction of nadp. we have determined the genomic sequences of 6pgd of two species of tephritidae, the medfly ceratitis capitata and olive fruit fly bactrocera oleae, and constructed a ... | 2006 | 16459157 |
| the dual role of chorion peroxidase in bactrocera oleae chorion assembly. | in the present study, we reveal for the first time that the bactrocera oleae chorion peroxidase (bpxd) participates essentially in b. oleae chorion formation and clearly represents the homologous member of drosophila melanogaster chorion peroxidase (pxd). comparative sequence analysis disclosed that the bpxd cdna semi-central region, which encodes for the putative catalytic domain of the enzyme, exhibits great homology (98%) with its pxd counterpart. thus, it is very likely that bpxd is highly r ... | 2006 | 16741869 |
| partial purification and insecticidal activity of toxic metabolites secreted by a mucor hiemalis strain (smu-21) against adults of bactrocera oleae and ceratitis capitata (diptera: tephritidae). | the secondary metabolites present in the methanol extract of a mucor hiemalis strain (smu-21) mycelia, cultured in liquid medium, were evaluated for toxicity to bactrocera oleae (gmelin) and ceratitis capitata (wiedemann) (diptera: tephritidae) adults. feeding and contact bioassays revealed that the methanol fraction of the crude supernatant was strongly toxic to both species. symptoms of toxicity developed quickly; lethargy occurred 1-2 h posttreatment, and mortality reached 82-97% after 24 h. ... | 2006 | 17066796 |
| organophosphate resistance in olive fruit fly, bactrocera oleae, populations in greece and cyprus. | the olive fruit fly bactrocera oleae (gmelin) (diptera: tephritidae) is the most important pest of olives in countries around the mediterranean basin. its control has been based mostly on bait sprays with organophosphate insecticides (usually dimethoate or fenthion) for about 40 years. in the present study, the resistance status of olive fruit fly populations to dimethoate was examined in greece and cyprus over 2 years. thirty-one populations from various regions of greece, nine from cyprus and ... | 2007 | 17103369 |
| assessment of susceptibility of olive cultivars to the bactrocera oleae (gmelin, 1790) and camarosporium dalmaticum (thüm.) zachos & tzav.-klon. attacks in calabria (southern italy). | within the framework of research concerning the application of techniques alternative to chemical pesticides for control of parasites, the c.r.a. experimental institute for olive growing for many years has been performing a large investigation in order to detect sources of genetic resistance in olive germplasm. in the present study we observed the behavior related to the olive fly (bactrocera oleae) infestation and camarosporium dalmaticum infection of ten olive cultivars farmed under the same a ... | 2007 | 17763035 |
| determination of natural olive fruit fly pheromone in insect samples by enzyme linked immunoassays. | the olive fruit fly pheromone avidin-biotin elisa immunoassay, based on the use of polyclonal g antibodies derived from rabbits (reported previously) and a newer assay, based on the use of polyclonal y antibodies isolated from the eggs of laying hens (reported in this paper), were applied successfully for the analysis of natural pheromone in virgin adult female olive fruit flies. according to the results obtained, the pheromone content in the glands of adult female olive fruit flies increases fr ... | 2008 | 18371673 |
| efficacy of the pyrethroid alpha-cypermethrin against bactrocera oleae populations from greece, and improved diagnostic for an iache mutation. | the most important pest of olive orchards worldwide is the olive fruit fly bactrocera oleae (gmelin). its control in greece has been based on organophosphates (ops), but their intense use has led to the development of resistance. a test previously developed to monitor the trait may not be as robust as originally thought. the pyrethroid alpha-cypermethrin has recently been registered for bait sprays, as an alternative to ops. | 2008 | 18381673 |
| effects of fly attack (bactrocera oleae) on the phenolic profile and selected chemical parameters of olive oil. | the phenolic fraction of virgin olive oil influences both its quality and oxidative stability. one of the principal threats of the quality of olive fruit is the olive fly ( bactrocera oleae) as it alters the chemical composition. the attack of this olive pest has been studied in order to evaluate its influence on the quality of virgin olive oil (free acidity, peroxide value, fatty acid composition, water content, oxidative stability, phenols, and antioxidant power of phenolic fraction). the stud ... | 2008 | 18522402 |
| acetobacter tropicalis is a major symbiont of the olive fruit fly (bactrocera oleae). | following cultivation-dependent and -independent techniques, we investigated the microbiota associated with bactrocera oleae, one of the major agricultural pests in olive-producing countries. bacterial 16s rrna gene libraries and ultrastructural analyses revealed the presence of several bacterial taxa associated with this insect, among which acetobacter tropicalis was predominant. the recent increased detection of acetic acid bacteria as symbionts of other insect model organisms, such as anophel ... | 2009 | 19304818 |
| the olive fly endosymbiont, "candidatus erwinia dacicola," switches from an intracellular existence to an extracellular existence during host insect development. | as polyphagous, holometabolous insects, tephritid fruit flies (diptera: tephritidae) provide a unique habitat for endosymbiotic bacteria, especially those microbes associated with the digestive system. here we examine the endosymbiont of the olive fly [bactrocera oleae (rossi) (diptera: tephritidae)], a tephritid of great economic importance. "candidatus erwinia dacicola" was found in the digestive systems of all life stages of wild olive flies from the southwestern united states. pcr and micros ... | 2009 | 19767463 |
| efficacy of new mass-trapping devices against bactrocera oleae (diptera tephritidae) for minimizing pesticide input in agroecosystems. | decreasing pesticide use in olive groves is central to controlling pathogens and pests such as bactrocera oleae. this has led to the development of mass trapping devices which not only minimize pesticide use but, with improved efficacy of attractants, also decrease costs associated with pest control and ensures that the quality of olive oil is safe for human consumption. this study was undertaken to test a new device which utilizes reduced quantities of both insecticide (lambda-cyalothrin) as we ... | 2009 | 20183048 |
| characterization and pathogenicity of botryosphaeriaceae species collected from olive and other hosts in spain and california. | species in the family botryosphaeriaceae are common pathogens causing fruit rot and dieback of many woody plants. in this study, 150 botryosphaeriaceae isolates were collected from olive and other hosts in spain and california. representative isolates of each type were characterized based on morphological features and comparisons of dna sequence data of three regions: internal transcribed spacer 5.8s, β-tubulin, and elongation factor. three main species were identified as neofusicoccum mediterra ... | 2010 | 20731532 |
| acetic acid bacteria, newly emerging symbionts of insects. | recent research in microbe-insect symbiosis has shown that acetic acid bacteria (aab) establish symbiotic relationships with several insects of the orders diptera, hymenoptera, hemiptera, and homoptera, all relying on sugar-based diets, such as nectars, fruit sugars, or phloem sap. to date, the fruit flies drosophila melanogaster and bactrocera oleae, mosquitoes of the genera anopheles and aedes, the honey bee apis mellifera, the leafhopper scaphoideus titanus, and the mealybug saccharicoccus sa ... | 2010 | 20851977 |
| altered gpi modification of insect ache improves tolerance to organophosphate insecticides. | the olive fruit fly bactrocera oleae is the most destructive and intractable pest of olives. the management of b. oleae has been based on the use of organophosphate (op) insecticides, a practice that induced resistance. op-resistance in the olive fly was previously shown to be associated with two mutations in the acetylcholinesterase (ache) enzyme that, apparently, hinder the entrance of the op into the active site. the search for additional mutations in the ace gene that encodes ache revealed a ... | 2010 | 21112395 |
| riding the trojan horse: combating pest insects with their own symbionts. | insects form an extremely large group of animals and bear a consequently large variety of associated microbes. this microbiota includes very specific and obligate symbionts that provide essential functions to the host, and facultative partners that are not necessarily required for survival. the tephritidae is a large family that includes many fruit pests such as the mediterranean fruit fly (the medfly, ceratitis capitata) and the olive fly (bactrocera oleae). community and functional analyses sh ... | 2011 | 21338477 |
| evidence of two lineages of the symbiont "candidatus erwinia dacicola" in italian populations of bactrocera oleae (rossi) based on 16s rrna gene sequence. | a close association between the olive fly bactrocera oleae (rossi) (diptera: tephritidae) and bacteria has been known for more than a century. recently, the presence of an host specific, hereditary, unculturable symbiotic bacterium, designated as "candidatus erwinia dacicola", has been described inside a cephalic organ of the fly, called oesophageal bulb. in the present work we analyzed the 16s rrna variability of "ca. e. dacicola" within and among 26 italian olive flies populations sampled acro ... | 2011 | 21378134 |
| frequencies of organophosphate resistance-associated mutations in the acetylcholinesterase gene of field collected olive fly (bactrocera oleae) populations under different insecticide regimes. | in the present study, the frequencies of three organophosphate (op) resistance-associated mutations in acetylcholinesterase gene of bactrocera oleae (boace) populations collected from 8 different important olivegrowing areas in the west part of turkey were determined. populations were sampled from the areas that have been treated with only the pyrethroid +¦-cypermethrin; pyrethroids plus ops; deltamethrin with pheromone eco-traps, and no insecticide treatment applied areas for many years. for il ... | 2011 | 21388916 |
| yeast dynamics during the fermentation of brined green olives treated in the field with kaolin and bordeaux mixture to control the olive fruit fly. | the yeast microbiota associated with naturally fermented and inoculated green table olives, differently treated in the field with non-conventional repellent and antiovipositional products in the control of bactrocera oleae, was analysed using a combination of culture-dependent and -independent molecular fingerprinting. the routine yeast isolation gave rise to 118 strains, whose identification was performed by pcr-rflp of the internal transcribed spacer (its) regions. total dna was extracted dire ... | 2011 | 21570143 |
| draft genome sequence of the bactrocera oleae symbiont "candidatus erwinia dacicola". | "candidatus erwinia dacicola" is a gammaproteobacterium that forms a symbiotic association with the agricultural pest bactrocera oleae here, we present a 2.1-mb draft hybrid genome assembly for "ca. erwinia dacicola" generated from single-cell and metagenomic data. | 2016 | 27634990 |
| insect biometrics: optoacoustic signal processing and its applications to remote monitoring of mcphail type traps. | monitoring traps are important components of integrated pest management applied against important fruit fly pests, including bactrocera oleae (gmelin) and ceratitis capitata (widemann), diptera of the tephritidae family, which effect a crop-loss/per year calculated in billions of euros worldwide. pests can be controlled with ground pesticide sprays, the efficiency of which depends on knowing the time, location and extent of infestations as early as possible. trap inspection is currently carried ... | 2015 | 26544845 |
| olive fly transcriptomics analysis implicates energy metabolism genes in spinosad resistance. | the olive fly, bactrocera oleae, is the most devastating pest of cultivated olives. its control has been traditionally based on insecticides, mainly organophosphates and pyrethroids. in recent years, the naturalyte spinosad is used against the olive fly. as with other insecticides, spinosad is subject to selection pressures that have led to resistance development. mutations in the α6 subunit of the nicotinic acetylcholine receptor (nachr) have been implicated in spinosad resistance in several sp ... | 2014 | 25156405 |
| analysis of the olive fruit fly bactrocera oleae transcriptome and phylogenetic classification of the major detoxification gene families. | the olive fruit fly bactrocera oleae has a unique ability to cope with olive flesh, and is the most destructive pest of olives worldwide. its control has been largely based on the use of chemical insecticides, however, the selection of insecticide resistance against several insecticides has evolved. the study of detoxification mechanisms, which allow the olive fruit fly to defend against insecticides, and/or phytotoxins possibly present in the mesocarp, has been hampered by the lack of genomic i ... | 2013 | 23824998 |
| interchromosomal duplications on the bactrocera oleae y chromosome imply a distinct evolutionary origin of the sex chromosomes compared to drosophila. | diptera have an extraordinary variety of sex determination mechanisms, and drosophila melanogaster is the paradigm for this group. however, the drosophila sex determination pathway is only partially conserved and the family tephritidae affords an interesting example. the tephritid y chromosome is postulated to be necessary to determine male development. characterization of y sequences, apart from elucidating the nature of the male determining factor, is also important to understand the evolution ... | 2011 | 21408187 |
| isolation and characterization of microsatellite markers from the olive fly, bactrocera oleae, and their cross-species amplification in the tephritidae family. | the tephritidae family of insects includes the most important agricultural pests of fruits and vegetables, belonging mainly to four genera (bactrocera, ceratitis, anastrepha and rhagoletis). the olive fruit fly, bactrocera oleae, is the major pest of the olive fruit. currently, its control is based on chemical insecticides. environmentally friendlier methods have been attempted in the past (sterile insect technique), albeit with limited success. this was mainly attributed to the lack of knowledg ... | 2008 | 19099577 |
| the molecular biology of the olive fly comes of age. | olive cultivation blends with the history of the mediterranean countries since ancient times. even today, activities around the olive tree constitute major engagements of several people in the countryside of both sides of the mediterranean basin. the olive fly is, beyond doubt, the most destructive pest of cultivated olives. the female fly leaves its eggs in the olive fruit. upon emergence, the larvae feed on the olive sap, thus destroying the fruit. if untreated, practically all olives get infe ... | 2014 | 25472866 |
| achilles, a new family of transcriptionally active retrotransposons from the olive fruit fly, with y chromosome preferential distribution. | sex chromosomes have many unusual features relative to autosomes. the in depth exploration of their structure will improve our understanding of their origin and divergence (degeneration) as well as the evolution of genetic sex determination pathways which, most often are attributed to them. in tephritids, the structure of y chromosome, where the male-determining factor m is localized, is largely unexplored and limited data concerning its sequence content and evolution are available. in order to ... | 2015 | 26398504 |
| population-level effects of fitness costs associated with repressible female-lethal transgene insertions in two pest insects. | genetic control strategies offer great potential for the sustainable and effective control of insect pests. these strategies involve the field release of transgenic insects with the aim of introducing engineered alleles into wild populations, either permanently or transiently. their efficacy can therefore be reduced if transgene-associated fitness costs reduce the relative performance of released insects. we describe a method of measuring the fitness costs associated with transgenes by analyzing ... | 2014 | 24944572 |
| characterization of olfactory sensilla of the olive fly: behavioral and electrophysiological responses to volatile organic compounds from the host plant and bacterial filtrate. | the responses of olive fly (bactrocera oleae) antennal and palpal olfactory receptors to odors emitted by pseudomonas putida bacterial filtrate and to volatiles from a host plant were evaluated using electrophysiological and behavioral bioassays. morphological identification of olfactory receptors was also performed. the third antennal segment (flagellum) bears four types of multiporous sensilla: trichoid, short basiconica, clavate and grooved. maxillary palps have mechanosensory bristles and mu ... | 2013 | 23669464 |
| draft genome sequence of stenotrophomonas maltophilia sbo1 isolated from bactrocera oleae. | bacteria of the genus stenotrophomonas are ubiquitous in the environment and are increasingly associated with insects. stenotrophomonas maltophilia sbo1 was cultured from the gut of bactrocera oleae the draft genome sequence presented here will inform future investigations into the nature of the interaction between insects and their microbiota. | 2016 | 27660769 |
| a metabarcoding survey on the fungal microbiota associated to the olive fruit fly. | the occurrence of interaction between insects and fungi is interesting from an ecological point of view, particularly when these interactions involve insect pests and plant pathogens within an agroecosystem. in this study, we aimed to perform an accurate analysis on the fungal microbiota associated to bactrocera oleae (rossi) through a metabarcoding approach based on 454 pyrosequencing. from this analysis, we retrieved 43,549 reads that clustered into 128 operational taxonomic units (otus), of w ... | 2017 | 27687872 |
| octopamine--a single modulator with double action on the heart of two insect species (apis mellifera macedonica and bactrocera oleae): acceleration vs. inhibition. | the effects of octopamine, the main cardioacceleratory transmitter in insects, were investigated, in the isolated hearts of the honeybee, apis mellifera macedonica, and the olive fruit fly, bactrocera oleae. octopamine induced a biphasic effect on the frequency and force of cardiac contractions acting as an agonist, with a strong acceleratory effect, at concentrations higher than 10(-12)m for the honeybee and higher than 50×10(-9)m for the olive fruit fly. the heart of the honeybee is far more s ... | 2011 | 21147117 |
| housekeeping in tephritid insects: the best gene choice for expression analyses in the medfly and the olive fly. | real-time quantitative-pcr has been a priceless tool for gene expression analyses. the reaction, however, needs proper normalization with the use of housekeeping genes (hkgs), whose expression remains stable throughout the experimental conditions. often, the combination of several genes is required for accurate normalization. most importantly, there are no universal hkgs which can be used since their expression varies among different organisms, tissues or experimental conditions. in the present ... | 2017 | 28368031 |
| electrospun micro/nanofibers as controlled release systems for pheromones of bactrocera oleae and prays oleae. | new systems for the controlled release of 1,7-dioxaspiro[5.5]undecane and (z)-7-tetradecenal, the sex pheromones of olive fruit fly, bactrocera oleae, and olive moth, prays oleae, respectively, were developed utilizing electrospun micro/nanofiber matrices from inexpensive, biodegradable polymers, namely polycaprolactone, cellulose acetate and polyhydroxybutyrate. the incorporation of the pheromones in 5, 10 and 20% w/w in the electrospinning polymer blends allowed for the production of fiber mat ... | 2017 | 28271344 |
| transcriptomic responses of the olive fruit fly bactrocera oleae and its symbiont candidatus erwinia dacicola to olive feeding. | the olive fruit fly, bactrocera oleae, is the most destructive pest of olive orchards worldwide. the monophagous larva has the unique capability of feeding on olive mesocarp, coping with high levels of phenolic compounds and utilizing non-hydrolyzed proteins present, particularly in the unripe, green olives. on the molecular level, the interaction between b. oleae and olives has not been investigated as yet. nevertheless, it has been associated with the gut obligate symbiotic bacterium candidatu ... | 2017 | 28225009 |
| towards understanding temporal and spatial dynamics of bactrocera oleae (rossi) infestations using decade-long agrometeorological time series. | insect dynamics depend on temperature patterns, and therefore, global warming may lead to increasing frequencies and intensities of insect outbreaks. the aim of this work was to analyze the dynamics of the olive fruit fly, bactrocera oleae (rossi), in tuscany (italy). we profited from long-term records of insect infestation and weather data available from the regional database and agrometeorological network. we tested whether the analysis of 13 years of monitoring campaigns can be used as basis ... | 2016 | 27044274 |
| comparative venomics of psyttalia lounsburyi and p. concolor, two olive fruit fly parasitoids: a hypothetical role for a gh1 β-glucosidase. | venom composition of parasitoid wasps attracts increasing interest - notably molecules ensuring parasitism success on arthropod pests - but its variation within and among taxa is not yet understood. we have identified here the main venom proteins of two braconid wasps, psyttalia lounsburyi (two strains from south africa and kenya) and p. concolor, olive fruit fly parasitoids that differ in host range. among the shared abundant proteins, we found a gh1 β-glucosidase and a family of leucine-rich r ... | 2016 | 27779241 |
| effect of bactrocera oleae on phenolic compounds and antioxidant and antibacterial activities of two algerian olive cultivars. | bactrocera oleae, an olive fruit fly, is a major olive pest in algeria. in this study, olives of two algerian cultivars (limli and rougette de métidja) with different degrees of infestation by the bactrocera oleae fly (0%, not attacked; 100%, all attacked; and real %) were analysed. the influence of this pest on individual phenolic compounds (hplc-dad-fld) and antioxidant profiles was ascertained. the antibacterial activity against 8 human enteropathogenic bacteria was also assessed. the results ... | 2016 | 27713969 |
| innate and learned responses of the tephritid parasitoid psyttalia concolor (hymenoptera: braconidae) to olive volatiles induced by bactrocera oleae (diptera: tephritidae) infestation. | parasitic wasps can learn cues that alter their behavioral responses and increase their fitness, such as those that improve host location efficiency. psyttalia concolor (szépligeti) (hymenoptera: braconidae) is a koinobiont endoparasitoid of 14 economically important tephritid species, including the olive fruit fly, bactrocera oleae (rossi) (diptera: tephritidae). in this research, we investigated the nature of olfactory cues mediating this tritrophic interaction. first, we identified the chemic ... | 2016 | 27616766 |
| characterization of irritans mariner-like elements in the olive fruit fly bactrocera oleae (diptera: tephritidae): evolutionary implications. | genomic variation among species is commonly driven by transposable element (te) invasion; thus, the pattern of tes in a genome allows drawing an evolutionary history of the studied species. this paper reports in vitro and in silico detection and characterization of irritans mariner-like elements (mles) in the genome and transcriptome of bactrocera oleae (rossi) (diptera: tephritidae). eleven irritans mle sequences have been isolated in vitro using terminal inverted repeats (tirs) as primers, and ... | 2016 | 27392643 |
| the odor of a plant metabolite affects life history traits in dietary restricted adult olive flies. | food quality shapes life history traits either directly or through response of individuals to additional environmental factors, such as chemical cues. plant extracts used as food additives modulate key life history traits; however little is known regarding such effects for olfactory chemical cues. exploiting an interesting experimental system that involves the olive fly (bactrocera oleae) and the plant metabolite α-pinene we asked whether exposure of adults to this compound modulates adult longe ... | 2016 | 27339862 |
| a pcr-based diagnostic assay for detecting dna of the olive fruit fly, bactrocera oleae, in the gut of soil-living arthropods. | bactrocera oleae (rossi) (diptera: tephritidae) is considered the most devastating pest of the olive tree worldwide. in an effort to develop management and biological control strategies against this pest, new molecular tools are urgently needed. in this study, we present the design of b. oleae-specific primers based on mitochondrial dna sequences of cytochrome oxidase subunit i (coi) gene. two pairs of b. oleae-specific primers were successfully designed and named as sbo1-f/sbo1-r and sbo2-f/sbo ... | 2016 | 27296773 |
| selective extraction of bactrocera oleae sexual pheromone from olive oil by dispersive magnetic microsolid phase extraction using a molecularly imprinted nanocomposite. | bactrocera oleae gmelin, also known as olive fruit fly, is the main olive tree pest. it produces a severe effect not only on the productivity but also on the quality of the olive-related products. in fact, the oil obtained from infected olives has a lower antioxidant power. in addition, an increase of the oil acidity, peroxide index and uv-absorbance can also be observed. 1,7-dioxaspiro-[5,5]-undecane (dsu), is the main component of the sexual pheromone of this pest and may be used as marker of ... | 2016 | 27295964 |
| the effect of the olive fruit fly (bactrocera oleae) on quality parameters, and antioxidant and antibacterial activities of olive oil. | the present study was performed on olives from two algerian cultivars (limli and rougette de metidja) with different rates of attack by the bactrocera oleae fly (0%, not attacked; 100%, all attacked; and real attacked %) and the corresponding olive oils. the aim was to verify the attack effect on quality parameters (free fatty acid, peroxide value, k232 and k270, oxidation stability), bioactive compounds (fatty acids and tocopherols, and total phenols and flavonoids), and on the antioxidant (red ... | 2016 | 27220688 |
| feeding preferences and functional responses of calathus granatensis and pterostichus globosus (coleoptera: carabidae) on pupae of bactrocera oleae (diptera: tephritidae). | carabid beetles are important predators in agricultural landscapes feeding on a range of prey items. however, their role as predators of the olive fruit fly, bactrocera oleae (rossi) (diptera: tephritidae), one of the most serious pests of olives, is unknown. in this context, the feeding preferences and the functional responses of two carabid beetle species, calathus granatensis (vuillefroy) and pterostichus globosus (fabricius), were studied under laboratory conditions. feeding preference assay ... | 2016 | 27063655 |
| vocs-mediated location of olive fly larvae by the braconid parasitoid psyttalia concolor: a multivariate comparison among voc bouquets from three olive cultivars. | herbivorous activity induces plant indirect defenses, as the emission of herbivorous-induced plant volatiles (hipvs), which could be used by parasitoids for host location. psyttalia concolor is a larval pupal endoparasitoid, attacking a number of tephritid flies including b. oleae. in this research, we investigated the olfactory cues routing host location behavior of p. concolor towards b. oleae larvae infesting three different olive cultivars. vocs from infested and healthy fruits were identifi ... | 2016 | 26989691 |
| identification of leaf volatiles from olive (olea europaea) and their possible role in the ovipositional preferences of olive fly, bactrocera oleae (rossi) (diptera: tephritidae). | the olive fly, bactrocera oleae (rossi), is a monophagous pest that displays an oviposition preference among cultivars of olive (olea europaea l.). to clarify the oviposition preference, the olive leaf volatiles of three olive cultivars (cobrançosa, madural and verdeal transmontana) were assessed by headspace solid-phase microextraction gas chromatography-mass spectrometry (hs-spme-gc/ms) at six different periods of olive fruit maturation and degrees of infestation. a total of 39 volatiles were ... | 2016 | 26603276 |
| symbiotic bacteria enable olive fly larvae to overcome host defences. | ripe fruit offer readily available nutrients for many animals, including fruit fly larvae (diptera: tephritidae) and their associated rot-inducing bacteria. yet, during most of their ontogeny, fruit remain chemically defended and effectively suppress herbivores and pathogens by high levels of secondary metabolites. olive flies (bactrocera oleae) are uniquely able to develop in unripe olives. unlike other frugivorous tephritids, the larvae maintain bacteria confined within their midgut caeca. we ... | 2015 | 26587275 |
| development of new ecological long-lasting dispensers of semiochemicals for the control of bactrocera oleae (rossi). | | 2015 | 26501742 |
| assessing the risk of invasion by tephritid fruit flies: intraspecific divergence matters. | widely distributed species often show strong phylogeographic structure, with lineages potentially adapted to different biotic and abiotic conditions. the success of an invasion process may thus depend on the intraspecific identity of the introduced propagules. however, pest risk analyses are usually performed without accounting for intraspecific diversity. in this study, we developed bioclimatic models using maxent and boosted regression trees approaches, to predict the potential distribution in ... | 2015 | 26274582 |
| is bigger better? male body size affects wing-borne courtship signals and mating success in the olive fruit fly, bactrocera oleae (diptera: tephritidae). | variations in male body size are known to affect inter- and intrasexual selection outcomes in a wide range of animals. in mating systems involving sexual signaling before mating, body size often acts as a key factor affecting signal strength and mate choice. we evaluated the effect of male size on courtship displays and mating success of the olive fruit fly, bactrocera oleae (diptera: tephritidae). wing vibrations performed during successful and unsuccessful courtships by large and small males w ... | 2016 | 26173571 |
| sugar concentration and timing of feeding affect feeding characteristics and survival of a parasitic wasp. | the availability of food sources is important for parasitoid survival, especially for those that inhabit ecosystems where nectar and honeydew are spatially or temporally scarce. therefore, the value of even a single meal can be crucial for survival. psyttalia lounsburyi is a parasitoid, and biological control agent, of the olive fruit fly, bactrocera oleae. in order to improve our understanding of the basic nutritional ecology of p. lounsburyi and its role in survival we evaluated the effect of ... | 2015 | 26021561 |
| olive fruit fly (bactrocera oleae) population dynamics in the eastern mediterranean: influence of exogenous uncertainty on a monophagous frugivorous insect. | despite of the economic importance of the olive fly (bactrocera oleae) and the large amount of biological and ecological studies on the insect, the factors driving its population dynamics (i.e., population persistence and regulation) had not been analytically investigated until the present study. specifically, our study investigated the autoregressive process of the olive fly populations, and the joint role of intrinsic and extrinsic factors molding the population dynamics of the insect. account ... | 2015 | 26010332 |
| olive volatiles from portuguese cultivars cobrançosa, madural and verdeal transmontana: role in oviposition preference of bactrocera oleae (rossi) (diptera: tephritidae). | the olive fly, bactrocera oleae (rossi), a serious threat to the olive crop worldwide, displays ovipositon preference for some olive cultivars but the causes are still unclear. in the present work, three portuguese olive cultivars with different susceptibilities to olive fly (cobrançosa, madural, and verdeal transmontana) were studied, aiming to determine if the olive volatiles are implicated in this interaction. olive volatiles were assessed by spme-gc-ms in the three cultivars during maturatio ... | 2015 | 25985460 |
| correction: analysis of the olive fruit fly bactrocera oleae transcriptome and phylogenetic classification of the major detoxification gene families. | | 2015 | 25955294 |
| marked genetic differentiation between western iberian and italic populations of the olive fly: southern france as an intermediate area. | the olive fly, bactrocera oleae, is the most important pest affecting the olive industry, to which it is estimated to cause average annual losses in excess of one billion dollars. as with other insects with a wide distribution, it is generally accepted that the understanding of b. oleae population structure and dynamics is fundamental for the design and implementation of effective monitoring and control strategies. however, and despite important advances in the past decade, a clear picture of b. ... | 2015 | 25951107 |
| population-level lateralized aggressive and courtship displays make better fighters not lovers: evidence from a fly. | lateralization (i.e., left-right asymmetries in the brain and behavior) of aggressive and courtship displays has been examined in many vertebrate species, while evidence for invertebrates is limited. we investigated lateralization of aggressive and courtship displays in a lekking tephritid species, the olive fruit fly, bactrocera oleae. results showed a left-biased population-level lateralization of aggressive displays, with no differences between the sexes. in both male-male and female-female c ... | 2015 | 25889193 |
| contest experience enhances aggressive behaviour in a fly: when losers learn to win. | in several animal species, aggressive experience influences the characteristics and outcomes of subsequent conflicts, such that winners are more likely to win again (the winner effect) and losers more likely to lose again (the loser effect). we tested the olive fruit fly, bactrocera oleae (diptera: tephritidae), as a model system to evaluate the role of the winner and loser effects in male-male territorial contests. further, we conducted experiments to test if winning and losing probabilities ar ... | 2015 | 25792294 |
| olive fruits infested with olive fly larvae respond with an ethylene burst and the emission of specific volatiles. | olive fly (bactrocera oleae r.) is the most harmful insect pest of olive (olea europaea l.) which strongly affects fruits and oil production. despite the expanding economic importance of olive cultivation, up to now, only limited information on plant responses to b. oleae is available. here, we demonstrate that olive fruits respond to b. oleae attack by producing changes in an array of different defensive compounds including phytohormones, volatile organic compounds (vocs), and defense proteins. ... | 2016 | 25727685 |
| the bactrocera oleae genome: localization of nine genes on the polytene chromosomes of the olive fruit fly (diptera: tephritidae). | four homologous and five heterologous gene-specific sequences have been mapped by in situ hybridization on the salivary gland polytene chromosomes of the olive fruit fly, bactrocera oleae. the nine genes were dispersed on four of the five autosomal chromosomes, thus enriching the available set of chromosome landmarks for this major agricultural pest. present data further supports the proposed chromosome homologies among b. oleae, ceratitis capitata, and drosophila melanogaster and the idea of th ... | 2014 | 25723592 |
| is ground cover vegetation an effective biological control enhancement strategy against olive pests? | ground cover vegetation is often added or allowed to generate to promote conservation biological control, especially in perennial crops. nevertheless, there is inconsistent evidence of its effectiveness, with studies reporting positive, nil or negative effects on pest control. this might arise from differences between studies at the local scale (e.g. orchard management and land use history), the landscape context (e.g. presence of patches of natural or semi-natural vegetation near the focal orch ... | 2015 | 25646778 |
| geographical distribution and frequencies of organophosphate-resistant ace alleles and morphometric variations in olive fruit fly populations. | in the mediterranean basin, organophosphate (op) insecticides have been used intensively to control olive fly populations. acetylcholinesterase (ace) is the molecular target of op insecticides, and three resistance-associated mutations that confer different levels of op insensitivity have been identified. in this study, genotypes of olive fly ace were determined in field-collected populations from broad geographical areas in turkey. in addition, the levels of asymmetry of wing and leg characters ... | 2015 | 25491602 |
| the electronic mcphail trap. | certain insects affect cultivations in a detrimental way. a notable case is the olive fruit fly (bactrocera oleae (rossi)), that in europe alone causes billions of euros in crop-loss/per year. pests can be controlled with aerial and ground bait pesticide sprays, the efficiency of which depends on knowing the time and location of insect infestations as early as possible. the inspection of traps is currently carried out manually. automatic monitoring traps can enhance efficient monitoring of flying ... | 2014 | 25429412 |
| role of α-copaene in the susceptibility of olive fruits to bactrocera oleae (rossi). | the influence of α-copaene as a fruit volatile in the susceptibility of olea europaea l. to the olive fruit fly bactrocera oleae (rossi) has been investigated. by studies on the relative area of volatile components from different cultivars, a positive correlation was found between the abundance of α-copaene in the samples and the corresponding degree of fruit infestation. spme-gc-ms analysis of volatiles from uninfested fruits of o. europaea l. cv. serrana were performed over two years to determ ... | 2014 | 25408316 |
| symbiotic bacteria enable olive flies (bactrocera oleae) to exploit intractable sources of nitrogen. | insects are often associated with symbiotic micro-organisms, which allow them to utilize nutritionally marginal diets. adult fruit flies (diptera: tephritidae) associate with extracellular bacteria (enterobacteriaceae) that inhabit their digestive tract. these flies obtain nutrients by foraging for plant exudates, honeydew and bird droppings scattered on leaves and fruit—a nutritional niche which offers ample amounts of carbohydrates, but low quantities of available nitrogen. we identified the b ... | 2014 | 25403559 |
| response of olive fruit fly (diptera: tephritidae) to an attract-and-kill trap in greenhouse cage tests. | a novel attract-and-kill trap for olive fruit fly, bactrocera oleae (rossi) (diptera: tephritidae), was constructed with yellow corrugated plastic in an inverted cylindrical pan shape formed from a disk and collar. the trap components were tested under three greenhouse temperatures and humidities of warm, hot, and very hot for attractiveness to caged young or older adults. a greater proportion of adults regardless of age were found underneath the devices including disks, cylindrical pans, and pa ... | 2014 | 25368094 |
| conserved metallomics in two insect families evolving separately for a hundred million years. | μetal cofactors are required for enzymatic catalysis and structural stability of many proteins. physiological metal requirements underpin the evolution of cellular and systemic regulatory mechanisms for metal uptake, storage and excretion. considering the role of metal biology in animal evolution, this paper asks whether metal content is conserved between different fruit flies. a similar metal homeostasis was previously observed in drosophilidae flies cultivated on the same larval medium. each s ... | 2014 | 25298233 |
| the complete nucleotide sequence of the mitochondrial genome of bactrocera minax (diptera: tephritidae). | the complete 16,043 bp mitochondrial genome (mitogenome) of bactrocera minax (diptera: tephritidae) has been sequenced. the genome encodes 37 genes usually found in insect mitogenomes. the mitogenome information for b. minax was compared to the homologous sequences of bactrocera oleae, bactrocera tryoni, bactrocera philippinensis, bactrocera carambolae, bactrocera papayae, bactrocera dorsalis, bactrocera correcta, bactrocera cucurbitae and ceratitis capitata. the analysis indicated the structure ... | 2014 | 24964138 |
| fine-scale ecological and economic assessment of climate change on olive in the mediterranean basin reveals winners and losers. | the mediterranean basin is a climate and biodiversity hot spot, and climate change threatens agro-ecosystems such as olive, an ancient drought-tolerant crop of considerable ecological and socioeconomic importance. climate change will impact the interactions of olive and the obligate olive fruit fly (bactrocera oleae), and alter the economics of olive culture across the basin. we estimate the effects of climate change on the dynamics and interaction of olive and the fly using physiologically base ... | 2014 | 24706833 |
| seasonal pheromone trap catches of male bactrocera oleae (diptera: tephritidae) in northern california: asynchrony with host (olive tree) phenology? | bactrocera oleae (rossi) (diptera: tephritidae, dacinae) is an oligophagous species that feeds only on cultivated olives (olea europaea l.) and its close relatives. synchrony of seasonal activity patterns of b. oleae, the olive fruit fly with its host's phenology is therefore expected. the objective of this study was to monitor the male olive fruit fly response to female sex pheromone in the field. white sticky traps were deployed year round for 3 yr in an olive orchard in oroville, ca. they wer ... | 2013 | 24468560 |
| aromatized to find mates: α-pinene aroma boosts the mating success of adult olive fruit flies. | contrary to other tephritidae, female but also male olive flies, bactrocera oleae release pheromones during their sexual communication. alpha-pinene, a common plant volatile found in high amounts in unripe olive fruit and leaves has been detected as one of the major components of the female pheromone. however, possible effects of α-pinene and that of other host volatiles on the mating behavior of the olive fly have not been investigated. | 2013 | 24260571 |
| molecular characterization and chromosomal distribution of a species-specific transcribed centromeric satellite repeat from the olive fruit fly, bactrocera oleae. | satellite repetitive sequences that accumulate in the heterochromatin consist a large fraction of a genome and due to their properties are suggested to be implicated in centromere function. current knowledge of heterochromatic regions of bactrocera oleae genome, the major pest of the olive tree, is practically nonexistent. in our effort to explore the repetitive dna portion of b. oleae genome, a novel satellite sequence designated bor300 was isolated and cloned. the present study describes the g ... | 2013 | 24244494 |
| female-borne cues affecting psyttalia concolor (hymenoptera: braconidae) male behavior during courtship and mating. | knowledge of the mechanisms that regulate courtship and mating behavior in psyttalia concolor (szépligeti)-a koinobiont endophagous solitary parasitoid of the olive fruit fly, bactrocera oleae (rossi), and of other fruit flies-is essential to its mass rearing and management. augmentative releases of p. concolor for olive fruit fly control started in the mediterranean areas in the 1950s and still continue with limited success. we determined the influence of visual and chemical cues on courtship a ... | 2013 | 23955889 |
| detection and geographical distribution of the organophosphate resistance-associated δ3q ace mutation in the olive fruit fly, bactrocera oleae (rossi). | the olive fruit fly, bactrocera oleae (rossi) (diptera: tephritidae), is the most important pest of olives. its control is based mostly on organophosphate (op) insecticides, a practice that has led to resistance development. op resistance in b. oleae has been associated with three mutations in the acetylcholinesterase (ache), the product of ace gene. the current study presents new diagnostic tests for the detection of the ace mutations and aims at monitoring the frequency of the δ3q mutation, wh ... | 2014 | 23908134 |
| biocontrol of bactrocera oleae (diptera: tephritidae) with metarhizium brunneum and its extracts. | the susceptibility of preimaginal and adult olive fruit fly, bactrocera oleae (gmelin) (diptera: tephritidae), to a strain of the mitosporic ascomycete metarhizium brunneum (petch) (hypocreales: clavicipitaceae) and the insecticidal activity of its crude extract to olive fruit fly adults were investigated. strain eamb 09/01-su caused 60% mortality to b. oleae adults, with average survival time (ast) of 8.8 d. in soil treatments against pupariating third-instar larvae, preimaginal b. oleae mortal ... | 2013 | 23865175 |
| overwintering survival of olive fruit fly (diptera: tephritidae) and two introduced parasitoids in california. | the overwintering survival and development of olive fruit fly, bactrocera oleae (rossi), and the endoparasitoids, psyttalia humilis silvestri and p. lounsburyi (silvestri), were investigated at sites in california's interior valley and coastal region. in the interior valley, adult flies survived up to 4-6 mo during the winter when food was provided. adult female flies could oviposit in late fall and early winter on nonharvested fruit and, although egg survival was low (0.23-8.50%), a portion of ... | 2013 | 23726056 |
| eradication of invasive species: why the biology matters. | published bi- and tri-trophic physiologically based demographic system models having similar sub components are used to assess prospectively the geographic distributions and relative abundance (a measure of invasiveness) of six invasive herbivorous insect species across the united states and mexico. the plant hosts and insect species included in the study are: 1) cotton/pink bollworm, 2) a fruit tree host/mediterranean fruit fly, 3) olive/olive fly, 4) a perennial host/light brown apple moth, 5) ... | 2013 | 23726048 |
| ingestion toxicity of three lamiaceae essential oils incorporated in protein baits against the olive fruit fly, bactrocera oleae (rossi) (diptera tephritidae). | the ingestion toxicity of three lamiaceae essential oils (eos) - hyptis suaveolens, rosmarinus officinalis and lavandula angustifolia - incorporated in protein baits was evaluated against bactrocera oleae, a worldwide pest of olive fruits. in laboratory conditions, all the tested eos showed dose-dependent toxicity on b. oleae, with mortality rates ranging from 12% (eo concentration: 0.01% w:v) to 100% (eo concentration: 1.75% w:v). semi-field results highlighted the toxicity of l. angustifolia a ... | 2013 | 23594314 |
| the genetic polymorphisms and colonization process of olive fly populations in turkey. | the olive fruit fly, bactrocera oleae, is the most important pest of olives in olive growing regions worldwide, especially in the mediterranean basin and north america. despite the economic importance of the olive fly, the colonization route of this species is unclear. we used nuclear microsatellite markers and mitochondrial dna to provide information about the population structure and invasion route of olive fly populations in turkey, as representative of the eastern mediterranean region. adult ... | 2013 | 23457499 |
| kaolin and copper-based products applications: ecotoxicology on four natural enemies. | lethal and sublethal effects of kaolin clays and two copper-based products on four natural enemies found in olive orchards anthocoris nemoralis (f.) (hem. anthocoridae), chelonus inanitus (l.) (hym. braconidae), chilocorus nigritus (f.) (col. coccinellidae) and scutellysta cyanea motschulsky (hym. pteromalidae) are described. both kaolin and copper can be applied for controlling the olive fruit fly and the olive moth, two important pests of this crop. the products did not increase the mortality ... | 2013 | 23415488 |
| the courtship song of fanning males in the fruit fly parasitoid psyttalia concolor (szépligeti) (hymenoptera: braconidae). | in this paper we describe acoustically the wing-fanning behaviour showed by the male of the braconid psyttalia concolor towards females and other conspecific males. psyttalia concolor is a synovigenic koinobiont larval-pupal endoparasitoid of many tephritidae, used in olive crops to control the olive fruit fly, bactrocera oleae. in this braconid male wing fanning produces a courtship song characterised by sequences of homogenous pulses with harmonic structure and a fundamental frequency of about ... | 2013 | 23302745 |
| development of new ecological long-lasting dispensers of semiochemicals for the control of bactrocera oleae (rossi). | a new controlled-release pheromone 1,7-dioxaspiro[5,5]undecane dispenser has been developed, which is useful for monitoring the population and controlling bactrocera oleae (rossi, 1790) (diptera: tephritidae). for this purpose, several kinds of dispensers based on attapulgite were designed and tested in this study. | 2015 | 23109288 |
| mobility of olive fruit fly (diptera: tephritidae) late third instars and teneral adults in test arenas. | the mobility of olive fruit fly, bactrocera oleae (rossi), late third instars before pupation, teneral adults before flight, and mature adults restricted from flight were studied under mulches in greenhouse cage tests, in horizontal pipes, vertical bottles and pipes filled with sand, and by observation on smooth laboratory surfaces. percentage adults emerging from pupae and percentage adult females that escaped soil, fabric, and paper mulches over a soil or sand substrate ranged from 63 to 83, a ... | 2012 | 23068175 |
| laboratory tests of insect growth regulators as bait sprays for the control of the olive fruit fly, bactrocera oleae (diptera: tephritidae). | insect growth regulators (igrs) act specifically on arthropods. this selectivity makes them an interesting alternative to traditional insecticides for pest control. the aim of this work was to test the igrs azadirachtin, cyromazine, flufenoxuron, lufenuron and pyriproxyfen as useful pesticides for the control of the olive fruit fly, bactrocera oleae (rossi), a key pest of olive crops. | 2013 | 23034882 |