Question: insects that are crop pest?
Answer: Cotton bollworm (Helicoverpa armigera) ... 
Tobacco whitefly (Bemisia tabaci) ... 
Two-spotted spider mite (Tetranychus urticae) ... 
Diamondback moth (Plutella xylostella) ... 
Taro caterpillar (Spodoptera litura) ... 
Red flour beetle (Tribolium castaneum) ... 
Green peach aphid (Myzus persicae)