3种农药注射天竺桂茎秆防治龟蜡蚧的效果

Effects of injecting 3 pesticides into Cinnamomum japonicum Siebl stems in Ceroplastes floridensis Constock control

龟蜡蚧(Ceroplastes floridensisConstock)是危害天竺桂的一种主要害虫.运用正交试验方法,在福建尤溪天竺桂行道树中,选用丁硫克百威、阿维菌素、啶虫脒3种农药进行秆部注射防治.结果表明:农药种类和防治次数是影响防治效果的主要因素,采用3%啶虫脒原液,每株用药量8 mL,3次防治,效果最佳.啶虫脒安全、低毒,持效期长,采用注射施药,对环境无污染,对人畜和其它有益生物安全,防治成本低,可在生产上推广应用.防治该虫还应加强综合治理.

Ceroplastes floridensis Constock （ CFC ） is a major pest of Cinnamomum japonicum Siebl （CJS）. In orthogonal tests, Carbosulfan, Avermectins and Acetamipfid were injected into the stems of CJS trees along the roads in Youxi County of Fujian Province to prevent CFC. The result showed that the major factors which influence the preventive effect are pesticide category and the frequency of pesticide u- sing. The most efficient way is using acetamiprid stock solution （3%） for 3 times, with 8 ml on a tree each time. Characterized with durable effect and low cost, being pollution-free to environment, human, poultry and other animals, Acetamiprid is can be popularized in afforestation programs. Meanwhile, com- prehensive control should also be enhanced to prevent the pest.