松干蚧(Matsucoccus matsumurae)是松林的一种毁灭性害虫。由于它的若虫系在翘皮下吸食树的汁液为害,防治工作较为困难。近年来,采用刮环涂抹氟乙酰胺获得了满意的防治效果,现已相继在各省推广。但由于此药剧毒,使用中人、畜中毒事故频仍,因此寻求代替氟乙酰胺的低毒、高效新农药便成为生产上迫切需要解决的问题。今年我所收到了一些具有内吸性能的新农药后,分别于越冬代和第一代松干蚧固定若虫期进行了药效试验,现初报于后。 Matsucoccus matsumurae is a devastating pest of the pine forest. Its nymphs are harmed by the juice of the sucking tree under the skin of the tree, making prevention and control more difficult. In recent years, the use of scraping ring smear fluoroacetamide obtained satisfactory control effect, has been successively promoted in all provinces. However, due to the drug is highly toxic, the use of intermediaries, animal poisoning frequent, therefore seeking to replace the fluoroacetamide low toxicity, high efficiency of new pesticides has become an urgent need to address the issue of production. This year I received a number of new pesticides with internal absorption performance, respectively, overwintering generation and the first generation of pine nymph immobilized nymphs during the efficacy test, is now reported later.