应用刮皮涂布或打孔灌注氧化乐果防治松干蚧有良好效果(见表1),它具有不杀伤天敌,减少污染,使用安全,对人畜毒性低,防治方法简便易行等优良特性,深受松干蚧疫区广大群众欢迎,现已在浙江、辽宁、江苏等省推广使用。1977年春,我们在用打孔灌注氧化乐果防治松干蚧时发现,施药后树上的越冬代5-6龄松毛虫纷纷中毒堕地。因此,我们于第一代 Application of scraping skin coating or perfusion of omethoate to prevent and cure Songkrania have good results (see Table 1), it has no killing natural enemies, reduce pollution, safe use, low toxicity to humans and animals, control methods and other simple and easy By the majority of people welcomed by the masses of pine dry weight, is now in Zhejiang, Liaoning, Jiangsu and other provinces to promote the use of. In the spring of 1977, when we used perfused omethoate to control pine and dry scales, we found that 5-6-year-old pine caterpillars on the trees were poisoned after falling into the ground. So we are in the first generation