Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)
Published: Oct. 31, 2024
Language: Английский
The Canadian Entomologist, Journal Year: 2025, Volume and Issue: 157
Published: Jan. 1, 2025
Abstract The radish fly, Delia planipalpis Linnaeus (Diptera: Anthomyiidae), is an emerging pest of broccoli and brassicaceous crops (Brassicaceae). fly oviposits close to the stem plants, larvae feed within then pupate in soil. Due D. ’s recent appearance as a pest, no insecticides are registered for its management Mexico. This study evaluated efficacy 13 synthetic biological against different developmental stages through laboratory bioassays. Neonicotinoid-based products were highly toxic larvae, especially when applied via root irrigation, with thiamethoxam, clothianidin, imidacloprid showing systemic activity. Thiamethoxam- spinetoram-based also effective oviposition site spray. A clothianidin-based product demonstrated moderate ovicidal activity, bifenthrin had residual activity adult flies. pyriproxyfen-based effectively suppressed emergence. Products based on spirotetramat, neem (Meliaceae), Tagetes (marigold) (Asteraceae) extracts microbial insecticide Bacillus thuringiensis var. israelensis (Bacillaceae) ineffective this pest. Spinosad Sterneinema feltiae (Rhabditida: Steinernematidae) not but could be used together other control strategies organic production. Neonicotinoids, spinetoram, pyriproxyfen promising options validate field trials broccoli.
Language: Английский
Citations
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Insects, Journal Year: 2025, Volume and Issue: 16(2), P. 137 - 137
Published: Jan. 31, 2025
The melon fruit fly, Bactrocera cucurbitae, is an important insect pest responsible for significant yield losses in vegetables. Conventional control methods, like pesticide applications, have certain limitations, including environmental contamination. This study evaluated the chemosterilant potential of five new growth regulators (IGRs)-Pyriproxyfen; Novaluron; Lufenuron; Buprofezin; and Flubendiamide-at concentrations ranging from 50 to 300 ppm a 5 mL diet against B. cucurbitae. Laboratory trials identified Lufenuron as most effective IGR, which reduced fecundity by 68.4% adult emergence 70.97% at concentration. Other IGRs, Pyriproxyfen; Flubendiamide, also significantly higher concentrations. Based on laboratory performance, was selected field using six bait traps per 0.4 hectares. demonstrated number cucurbitae captures Lufenuron-based compared reductions crop damage, with fly damage decreasing 7.01% August 4.25% September. highlights baited promising approach integrated management programs cucurbitaceous
Language: Английский
Citations
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Pest Management Science, Journal Year: 2024, Volume and Issue: 80(10), P. 5099 - 5111
Published: June 12, 2024
Abstract BACKGROUND Pyriproxyfen is an insect growth regulator (IGR) that effective against various types of pests. However, the molecular mechanism underlying pyriproxyfen effects on reproduction remains unclear. Thus, in this study, we attempted to uncover mechanisms impact reproductive system model organism Drosophila melanogaster . RESULTS A significant decrease was observed after treatment. The juvenile hormone (JH) titer significantly increased (120.4%) ovary samples pyriproxyfen‐treated flies. Likewise, concentrations key enzymes and expression genes related JH signaling pathway were also group compared with control group. Furthermore, treatment (15.6%) number germline stem cells (GSCs) decreased (17%) cystoblasts (CBs). no differences somatic cells. We performed RNA interference (RNAi) five ( Met , Tai gce ftz‐f1 hairy ) germ using cell‐specific Gal4 driver. Interestingly, RNAi selected both GSCs CBs transgenic These results further validate enhances GSC proliferation by up‐regulating signaling. CONCLUSION Our indicate decreases affecting female adult ovaries. effect cell differentiation mediated increase This study has implications for optimizing pest strategies, developing sustainable agriculture practices, understanding insecticide action. © 2024 Society Chemical Industry.
Language: Английский
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Pest Management Science, Journal Year: 2024, Volume and Issue: 80(11), P. 5728 - 5740
Published: July 11, 2024
Abstract Background Fopius arisanus (Sonan) is an important egg–pupal endoparasitic wasp of Bactrocera dorsalis (Hendel). As traditional method sorting nonparasitic B. from parasitic wasps labor‐intensive, requires specific equipment and poses the risk spreading fertile hosts, development a more convenient, economical safe procedure important. Results The optimal cyromazine emergence inhibition (CEIP) involved facilitating pupation mature larvae (Bdml) in 3 mg kg −1 sand substrate (CSS) for 48 h. When Bdml that had been exposed to F. during egg stage were treated with 3–7 CSS h, no negative effects on parameters parasitoids observed. Treatment 3–4 insignificant biological behavioral . However, treatment 5–6 adversely affected fecundity antennating activity wasps; specifically, 6 negatively lifespan flight ability wasps. Fortunately, transgenerational these observed progeny. Regarding nutrient reserves both sexes , significant dose‐dependent Moreover, significantly reduced protein carbohydrate content ; particular, notably lipid content. Conclusion CEIP provides flexible, mass‐release program In addition, it has profound implications control other dipteran pests. © 2024 Society Chemical Industry.
Language: Английский
Citations
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Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)
Published: Oct. 31, 2024
Language: Английский
Citations
0