Toxicological and ultrastructural analysis of the impact of pesticides used in temperate fruit crops on two populations of Chrysoperla externa (Neuroptera, Chrysopidae) (original) (raw)

This study evaluated the toxicological effects of six pesticides on two populations of Chrysoperla externa from different regions in Brazil. The impact on larval survival, oviposition, and egg hatching was investigated, revealing that carbaryl, fenitrothion, and methidathion led to 100% larval mortality. Abamectin significantly reduced egg hatching, particularly in the Vacaria population, while ultrasonic analysis indicated morphological alterations in the eggs. The findings categorize the pesticides according to ecological safety, providing important insights for pest management practices.