Insects, Journal Year: 2025, Volume and Issue: 16(3), P. 297 - 297

Published: March 12, 2025

In China, the Asian corn borer (ACB), Ostrinia furnacalis (Guenee) (Lepidoptera: Pyralidae), is most significant economic insect pest of corn, causing losses ranging from six to nine million tons annually by feeding on all parts maize, including damaging ears and leaves making tunnels in stems. since 1970s, Trichogramma species have extensively mass-reared factitious hosts control ACB support integrated management programs. The dendrolimi Matsumura T. ostriniae Pang Chen are efficient biocontrol agents for controlling among available species. To evaluate reproductive success ostriniae, we assessed impact varying parasitoid ratios (5:1, 3:1, 1:1, 1:3, 1:5 representing respectively) adult offspring emergence mortality eggs over multiple generations (from first (F1) third (F3) generations). We discovered that both species’ was significantly influenced generations, ratios, their interactions. affected but not or interaction between ratios. Furthermore, at 5:1, rate F1 generation higher compared 1:3 1:5. However, F2 generation, decreased considerably, no observed F3 generation. A contrasting trend offspring. Overall, regardless three than dendrolimi. After assessing our research dissecting unhatched eggs, found an inverse relationship across different Notably, exhibited a decline with increasing number generations. positive correlation indicating increased successive considerably greater These results suggest crucial empirical measure validates ostriniae’s superiority findings highlight importance selecting suitable when implementing management.

Language: Английский