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329 results for “Bactrocera”
Figure 2 in From Eradication to Containment: Invasion of French Polynesia by Bactrocera dorsalis (Hendel) (Diptera: Tephritidae) and Releases of Two Natural Enemies: A 17-Year Case Study
Figure 2. Monthly captures of B. dorsalis in methyl eugenol traps on Moorea.
Bactrocera zonata ̶ Pest Report and Datasheet to support ranking of EU candidate priority pests
<p>These two files are part of the outputs produced under the mandate <a href="http://registerofquestions.efsa.europa.eu/roqFrontend/wicket/page?1-1.ILinkListener-contentPane-listContainer-pageable-21-mandateNumberLnk">M-2017-0056</a> of the European Commission requesting EFSA for technical assistance in the field of quarantine pests qualifying as priority pests as by Article 6(2) of the Regulation (EU) 2016/2031 <em>on protective measures against pests of plants</em>.</p> <p>Under the mandate EFSA produced: i) 1 methodology report (DOI available at the field "Related/alternate identifiers"), ii) 28 datasheets, one for each of the 28 candidate pests, and iii) 28 pest reports supporting the information provided in the datasheets.</p> <p>EFSA wishes to acknowledge the contribution of Elma Bali, Josep Anton Jaques Miret, Nikolaos Papadopoulos, Stella Papanastassiou to the EKE to the EKE and the review conducted by Milonas Panagiotis.</p>
Bactrocera dorsalis ̶ Pest Report and Datasheet to support ranking of EU candidate priority pests
<p>These two files are part of the outputs produced under the mandate <a href="http://registerofquestions.efsa.europa.eu/roqFrontend/wicket/page?1-1.ILinkListener-contentPane-listContainer-pageable-21-mandateNumberLnk">M-2017-0056</a> of the European Commission requesting EFSA for technical assistance in the field of quarantine pests qualifying as priority pests as by Article 6(2) of the Regulation (EU) 2016/2031 <em>on protective measures against pests of plants</em>.</p> <p>Under the mandate EFSA produced: i) 1 methodology report (DOI available at the field "Related/alternate identifiers"), ii) 28 datasheets, one for each of the 28 candidate pests, and iii) 28 pest reports supporting the information provided in the datasheets.</p> <p>EFSA wishes to acknowledge the contribution of Elma Bali, Josep Anton Jaques Miret, Nikolaos Papadopoulos, Stella Papanastassiou to the EKE to the EKE and the review conducted by Milonas Panagiotis.</p> <p> </p> <p>Version 2: the pest report (.pdf) was updated correcting the name of one of the authors of the cited references and updating the link of Figure 2.</p>
Figure 3 in Embryonic development of the olive fruit fly, Bactrocera oleae Rossi (Diptera: Tephritidae), in vivo
Figure 3. Hatching of Bactrocera oleae egg by 66 h (A, B, C, and D).
Figure 2 in First Record of Bactrocera (Bactrocera) dorsalis (Hendel, 1912) (Diptera: Tephritidae) on Hedychium coronarium (family Zingiberaceae) from India
Figure 2. Habitus ofBactrocera (Bactrocera) dorsalis (Hendel, 1912).
Fig. 1 in Bionomics of Bactrocera fruit flies (Diptera: Tephritidae) in Khyber Pakhtunkhwa, Pakistan; exploring performance of various trap types and their characteristics
Fig. 1. Map of Khyber Pakhtunkhwa showing (a) agro-ecological zones and (b) sampling sites.
Fig. 4 in Use of ITS-1 to identify Bactrocera dorsalis and Bactrocera occipitalis (Diptera: Tephritidae): a case study using flies trapped in California from 2008 to 2018
Fig. 4. Image of wing of fly (16V457) with Bactrocera occipitalis ITS‑1 sequence.
Fig. 3 in Use of ITS-1 to identify Bactrocera dorsalis and Bactrocera occipitalis (Diptera: Tephritidae): a case study using flies trapped in California from 2008 to 2018
Fig. 3. Image of first Bactrocera occipitalis trapped in California in 1983.
Gene expression responses of Bactrocera tryoni larvae feeding on different ripening stages of tomato fruit
<p><em>Bactrocera tryoni </em>larvae rearing in immature-green, color-break, and fully-ripe tomato fruit's RSEM, DGE, Trinity Fasta file, Trinity Fasta gene to transcript map, and Trinotate annotation report data. </p>
Divergent east-west lineages in an Australian fruit fly, (Bactrocera jarvisi), associated with the Carpentaria Basin divide
<p><em>Bactrocera</em> <em>jarvisi</em> is an endemic Australian fruit fly species (Diptera: Tephritidae). It occurs commonly across tropical and subtropical coastal Australia, from far-northern Western Australia, across the 'Top End' of the Northern Territory, and then down the Queensland east coast. Across this range, its distribution crosses several well-documented biogeographic barriers. In order to better understand factors leading to the divergence of Australian fruit fly lineages, we carried out a population genetic study of <em>B. jarvisi</em> from across its range using genome-wide SNP analysis, utilising adult specimens gained from trapping and fruit rearing. Populations from the Northern Territory (NT) and Western Australia were genetically similar to each other but divergent from the genetically uniform east-coast (=Queensland, QLD) population. Phylogenetic analysis demonstrated that the NT population derived from the QLD population. We infer a role for the Carpentaria Basin as a biogeographic barrier restricting east-west gene flow. The QLD populations were largely panmictic and recognised east-coast biogeographic barriers play no part in north-south population structuring. While the NT and QLD populations were genetically distinct, there was evidence for the historically recent translocation of flies from each region to the other. Flies reared from different host fruits collected in the same location showed no genetic divergence. While a role for the Carpentaria Basin as a barrier to gene flow for Australian fruit flies agrees with existing work on the related <em>B. tryoni</em>, the reason(s) for population panmixia for <em>B. jarvisi</em> (and <em>B. tryoni</em>) over the entire Queensland east coast, a linear north-south distance of >2000km, remains unknown.</p>
[Data from:] Chemical cues involved in the host foraging behavior of Psyttalia concolor wasps to locate the olive fruit fly Bactrocera oleae
<p>Investigate the role of oviposition- (OIPVs) and herbivore-induced plant volatiles (HIPVs) emitted by olive trees upon infestation by <em>Bactrocera oleae </em>as well as cues emitted by the insect host <em>B. oleae.</em></p>
Effect of thermal acclimation on the tolerance of the peach fruit fly (Bactrocera zonata: Tephritidae) to heat and cold stress
<p>The effect of thermal acclimation on cold and heat tolerance of the peach fruit fly (<em>Bactrocera zonata</em>) was studied. Males and females were acclimated at 20, 25 and 30°C for up to 19 days following adult emergence. The critical thermal minimum (CT<sub>min</sub>) and maximum (CT<sub>max</sub>) were subsequently recorded as well adult survival following acute exposure to chilling (0 or -3°C for 2 hours). Additionally, the survival of pupae subjected for two hours to temperatures ranging from -12°C to 5°C was determined.</p> <p>The raw data collected during this study is available in the provided data file.</p>
Data from: A novel protein-based fruit fly trap in melon flies Bactrocera cucurbitae for effective pest control management
<p>Agriculture remains a major source of subsistence for local communities in India. However, agricultural yield can be strongly affected by agricultural pest outbreaks. This can result in economic losses for small-scale farmers who already experience socioeconomic challenges, such as lack of appropriate infrastructure and subsidies. Sophisticated pest management techniques (e.g., sterile insect technique) are less accessible to small farmers in developing countries and therefore, alternative cost-effective approaches for pest management are needed. Here, we report our findings of a three-year-long field trial (2018 to 2020) in India which was designed to test for the potential effectiveness of a novel, slow-release formulation protein-based trap, compared to standard Cuelure traps against melon flies <em>Bactrocera</em> <em>cucurbitae</em> (Diptera: Tephritidae). Protein-bait traps can attract flies from both sexes (as opposed to males-only, chemical traps), bearing the potential to have greater long-term impact on pest populations by decreasing future reproductive potential of trapped individuals. We found that Cuelure had overall higher trapping performance, while protein-bait traps, despite trapping at lower efficiency, were equally effective for males and females. Simulations with our field data revealed that protein-bait traps can have an 'inclusive' advantage by trapping females and thereby preventing future individuals. Overall, our study highlights the potential benefits of using this alternative trapping technique to supplement pest management in developing countries.</p>
Data for: Genomic signals of local adaptation across climatically heterogenous habitats in an invasive tropical fruit fly (Bactrocera tryoni)
<p class="MsoNormal"><span>Local</span> <span>adaptation</span> plays a key role in the successful establishment of pest populations in new environments by enabling them to tolerate novel biotic and abiotic conditions experienced outside their native range. However, the <span>genomic underpinnings of such adaptive responses</span> remain unclear, especially for agriculturally important pests. We investigate<span>d</span> <span>population </span>genomic signatures in the tropical/subtropical Queensland fruit fly, <em>Bactrocera tryoni</em>, which has <span>an </span>expanded range <span>encompassing</span> temperate and arid zones in Australia, <span>and</span> tropical <span>zones in the Pacific Islands</span>. Using reduced representation sequencing data from 28 populations, we detected allele frequency shifts associated with the <span>native/invasive </span>status of populations and <span>identified</span> environmental factors that <span>have likely </span>drive<span>n</span> population differentiation. We also determined that precipitation, temperature<span>,</span> and geographic variables explain allelic shifts across the distribution range of <em>B. tryoni</em>. <span>We found</span> spatial heterogeneity in signatures of local adaptation across various climatic conditions in invaded areas. Specifically, disjunct invasive populations in the tropical <span>Pacific Islands</span> and arid zones of Australia <span>were characterised by</span> multiple significantly differentiated single nucleotide polymorphisms (SNPs), some of which were associated with genes with well-understood function in environmental stress (e.g., heat and desiccation) response. However, invasive populations in southeast Australian temperate zones show<span>ed</span> higher gene flow with the native range <span>and </span>lacked a strong local <span>adaptive signal</span>. These results suggest that population connectivity with the native range has <span>differentially </span>affect<span>ed</span> <span>local adaptive patterns in different</span> invasive populations. Overall, our findings provide insights into the evolutionary underpinnings of invasion success of an important horticultural pest in climatically distinct environments.</p>
Divergent east-west lineages in an Australian fruit fly, (Bactrocera jarvisi), associated with the Carpentaria Basin divide
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Data for: Genomic signals of local adaptation across climatically heterogenous habitats in an invasive tropical fruit fly (Bactrocera tryoni)
Open the record for dataset details and reuse information.
Data from: A novel protein-based fruit fly trap in melon flies Bactrocera cucurbitae for effective pest control management
Open the record for dataset details and reuse information.
Effect of tomato-fruit cultivar and ripening stage on Bactrocera tryoni (Froggatt) egg and larval survival
<p>In studies of frugivorous tephritids, determining when offspring (i.e. egg and three larval instars) mortality occurs within the fruit can greatly improve the mechanistic understanding of the fly/host interaction. Previous research has demonstrated that the Queensland fruit fly, <i>Bactrocera tryoni</i>, has differential offspring performance in two tomato cultivars Cherry and Roma, but when juvenile mortality was occurring was not determined. We examined <i>B. tryoni </i>egg and larval survival in three different ripening stages (immature-green (IG), colour-break (CB) and fully-ripe (FR)) of Cherry and Roma tomato cultivars through destructive fruit sampling at 72 and 120 hrs for eggs, and 48 (1<sup>st</sup> instar), 96 (2<sup>nd</sup> instar) and 120 hours (3<sup>rd</sup> instar) after fruit inoculation with neonates for larvae. Cultivar and ripening stage had no significant effect on egg survival, nor larval survival at 48 hrs: egg survival was high across all treatments, while 1<sup>st</sup> instar larval was low across all treatments. At 96 and 120 hrs, there were significant cultivar and ripening stage impacts on larval survival. In fully-ripe fruit, no further significant mortality happened after the first instar. However, in colour-break fruit, after the initial 1<sup>st</sup> instar mortality, high mortality also occurred in third instar larvae. In immature-green fruits nearly all mortality occurred during the first and second instars. The difference in timing of larval mortality with ripening stage provides indirect evidence of active fruit defense which is strongest in immature-green fruit, less in colour-break fruit and absent in fully-ripe fruit. Increased knowledge of fruit defenses against fruit flies is a starting point for developing fruit fly resistant crops.</p>
FIGURES 9–16 in A new species and record of Bactrocera Macquart (Diptera, Tephritidae) from China
FIGURES 9–16. Bactrocera (Bactrocera) paradiospyri Chen, Zhou et Li, sp. nov. 9.Adult in lateral view; 10.Wing; 11.Scutum in dorsal view; 12.Abdomen in dorsal view; 13.Head in frontal view; 14.Head in dorsal view; 7.Epandrium, circus and surstylus in posterior view; 8.Epandrium, circus and surstylus in lateral view.
FIGURES 1–8 in A new species and record of Bactrocera Macquart (Diptera, Tephritidae) from China
FIGURES 1–8. Bactrocera (Zeugodacus) incisa (Walker, 1861). 1.Adult in lateral view; 2.Wing; 3.Scutum in dorsal view; 4.Abdomen in dorsal view; 5.Head in lateral view; 6.Head in frontal and lateral view; 7.Epandrium, circus and surstylus in posterior view; 8.Epandrium, circus and surstylus in lateral view
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