树干注射法防治美国白蛾试验初报

PRELIMINARY REPORT ON TRUNK INJECTION TO PREVENT Hyptcatria cunea DRURLY

采用树干注射器注射４０％氧化乐果，８０％敌敌畏乳油、４０％水胺硫磷乳油、５０％甲胺磷乳油、５０％对硫磷乳油的５０倍液防治美国白蛾，其中，注射５０％甲胺磷防治幼虫，３ｄ的死亡率达１００％，并且注射速度最快。其他药剂的防治效果也都比较显著。

Hyptcatria cunea Drurly is a quarantine pest and damages severly in local area in Chang Li County, Hebei Province. This work reported the injection of 40% Omethoate, 80%DDV, 40% Synergistic, 50% Is Carbophos and 50% Parathion, with a Trunk Injection Apparatus, to prevent Hyptcatria cunea Drurly. The results showed that the 50% Is Carbophos killed all the pests on the third day after trunk injection and the injection was the fastest among all pesticides. Other pesticides also have the good results.