不同波长光和温度对花绒寄甲产卵量及保幼激素Ⅲ的影响OA

Dastarcus helophoroides Fairmaire is an important natural enemy of wood-boring pests in forests.This study aims to investigate the changes in the egg-laying quantity and juvenile hormone Ⅲ titer in female D.helophoroides under different wavelengths of light and temperatures,so as to provide a theoretical basis for the indoor breeding of natural enemy insects.The experiment tested the egg-laying quantity and the changes in juvenile hormone Ⅲ titer(JH Ⅲ)within the body under conditions of 365 nm and 780 nm of white light spectrum,and temperatures of 10℃,28℃,and 35℃.The results showed that:(1)In different wavelength light processing groups,the egg-laying quantity of female D.helophoroides was the highest under red light 780 nm,significantly higher than that under ultraviolet light 365 nm and white light conditions.The dynamic changes in egg-laying quantity over time under different wavelengths of light were significantly different.(2)In the temperature treatment group,the average egg-laying quantity of female D.helophoroides was extremely low at 10℃,only 0.1±0.05 eggs;the highest average egg-laying quantity was found at 28℃(145.37±8.35).With the extension of the treatment time,the egg-laying quantity gradually increased and tended to stabilize after 20 days.Under 35℃ treatment,the egg-laying quantity of female insects gradually decreased with the extension of the treatment time.(3)There was no significant difference in JH Ⅲ titer among the light treatment groups,but there was a significant difference among the temperature treatment groups(P＜0.05),and the JH Ⅲ titer in the temperature treatment groups decreased significantly with the extension of the treatment time.