Azadirachtin effects on mating success, gametic abnormalities and progeny survival in Drosophila melanogaster (Diptera)

Pest Management Science, Journal Year: 2017, Volume and Issue: 74(1), P. 174 - 180

Published: July 24, 2017

Azadirachtin is a prominent natural pesticide and represents an alternative to conventional insecticides. It has been successfully used against insect pests. However, its effects on reproduction require further analysis. Here we investigated lethal sublethal of azadirachtin, treated adults in model insect, Drosophila melanogaster (Meigen). Dose-mortality relationships as well several parameters (mating, spermatogenesis, oogenesis fertility) were examined.Neem-Azal, commercial formulation applied topically newly emerged adults, increased mortality with positive dose-dependent relationship. The LD50 (0.63 μg) was determined 24 h after treatment using non-linear regression. Adults surviving this dose had mating success that divided by 3 progeny production reduced half when males treated, even more females treated. When combining probability survival, progeny, it appeared induced 98% reduction reproductive rates. Reduced partially explained the effect adult gametes number abnormalities. cysts apical nuclei positions within decreased 29.7% 20%, respectively, males. In females, oocytes per ovary volume basal also 16.1% 32.4%, respectively.Azadirachtin causes significant toxic both sexes decreases fecundity fertility D. melanogaster. Females are sensitive azadirachtin. © 2017 Society Chemical Industry.

Language: Английский

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Azadirachtin-based biopesticide affects the respiration and digestion inAnticarsia gemmataliscaterpillars

Toxin Reviews, Journal Year: 2021, Volume and Issue: 41(2), P. 466 - 475

Published: March 2, 2021

Anticarsia gemmatalis (Lepidoptera) is a soybean pest controlled mainly with synthetic insecticides. The effects of azadirachtin-based biopesticide (Azamax®) were investigated against A. caterpillars for toxicity, survival, respiration, antifeeding effects, and midgut histopathology. Concentration–mortality show LC50 = 0.58 g L−1 to gemmatalis. Survival decrease 30% after exposure. the respiration rate food consumption by caterpillars. insects exposed undergoes histopathological changes. Azadirachtin-based exhibits lethal sublethal on can be used in integrated management programs as an alternative control this pest.

Language: Английский

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Potential of the various oils for insect pests’ management and their effect on beneficial insects

International Journal of Tropical Insect Science, Journal Year: 2023, Volume and Issue: 43(2), P. 321 - 337

Published: Feb. 27, 2023

Language: Английский

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Preimaginal exposure to azadirachtin affects food selection and digestive enzymes in adults of Drosophila melanogaster (Diptera: Drosophilidae)

Pesticide Biochemistry and Physiology, Journal Year: 2017, Volume and Issue: 140, P. 58 - 64

Published: June 3, 2017

Language: Английский

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A Spinosad-Based Formulation Reduces the Survival and Alters the Behavior of the Stingless Bee Plebeia lucii

Neotropical Entomology, Journal Year: 2020, Volume and Issue: 49(4), P. 578 - 585

Published: April 28, 2020

Language: Английский

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