This paper does research on the mechanism of attracting insects of withered black poplar leaves conducted both in laboratory and in the field, and the main results are as follows.
Volatiles from withered leaves of black poplar, .Assaying the withered black populars leaves of three months with two ways. It shows that steam distillation (extracted by and dichloromethane)losed some low-grade esters and fusel oil compare with the gas adsorption.but it can get more components which is solide under nor...