近年来,柳毒蛾危害杨树严重。过去在树干基部喷撒6%六六六粉和粘虫散等农药,都收到一定的效果,但往往由于灌木及杂草等地被物较多,防治费工费药,成本较高。1984年春,我们试用2S杀灭涂棒(以下简称毒笔),防治柳毒蛾成功,并在全县推广应用,防治60多万株,效果均达90％以上。现将试验和防治情况总结如下, In recent years, Liu poison moth damage poplar serious. In the past, pesticides such as 6% BHC powder and armyworm powder scattered at the base of tree trunks all received certain results. However, they often cost more due to more materials being covered, such as shrubs and weeds. The spring of 1984, we try to kill the coated stick 2S (hereinafter referred to as poison pen), prevention and control of the success of venomous moth, and promote the use of the county, prevention and treatment of more than 600,000 strains, the effect reached more than 90%. Now test and control situation is summarized as follows,