Abstract
The 2nd and 5th instar of Ectropis grisescens Warren larvae were exposed to 400~405 nm illumination for 0, 60, 90, 120, 150 or 180 min to determine the effects of the irradiation on the development time as well as the rates of pupation, pupa emergence, aberration rate, eclosion rate, adult longevity and oviposition rate. The results showed that, as compared with control, as the processing time increases, the developmental duration was significantly shortened with 5 instar of E.grisescens Warren larvae. The eclosion rate and aberration rate were significantly increased. At the same time, the pupa weight was significantly higher than that of the 2nd instar larvae. The mortality increased significantly in 2nd of E.grisescens Warren larvae. There was no difference in adult eclosion rate between the two groups, and there was also no difference in the average oviposition. There was no significant difference between the two groups under 400~405 nm illumination, Male adults live longer than female adults.
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