Azadirachtin-based biopesticide affects the respiration and digestion in Anticarsia gemmatalis caterpillars

Toxin Reviews
2022.03.02

Author: Cliver Fernandes Farder-Gomes, Meenakshi Saravanan, Luis Carlos Martínez, Angelica Plata-Rueda, José Cola Zanuncio & José Eduardo Serrão

Abstract:

https://www.tandfonline.com/doi/abs/10.1080/15569543.2021.1892764

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