15%灭幼脲烟雾剂防治马尾松毛虫试验

Experiments on controlling Dendrolimus punctatus by use of a smoking agent containing 15% Benoylphenal urea Ⅲ

用 15 %灭幼脲烟雾剂 10 0ml/亩 ,防治马尾松毛虫 ,其防治效果可达 93.1% 。