Based on the investigation of 25 species pest insects and experimentsin 1990, the characters inhabitat, damage time and feeding behaviour of themajor species of cruciferae vegetable on Maolong farm in Shenzhen, China arereported in this paper. Especially, a good analysis is made on the causes andrelations with enviroments on diamond-back moth which is rampant on thefarm. And integrated control is applied and the ab...
