represents of Pyrethriods were used to select their most sensitive insects from Drosophila,Housefly,weevil,potato tuber worn,TenibriomolitorLinne,which were fed indoors for a long time.

The second instar larvae was the most sensitive stage for prepupal diapause induction,the prepupae could go into diapause only when the second instar larvae was subjected to the diapause-inducing short-day.

Effects of heavy metal pollution on insects;

The effect of elevated ozone concentration on plants and insects;

Bioactive compounds from insects and its development perspective;