黄杨并盾蚧化学防治试验

Experiments on the Application of the Chemical Pesticide for Controlling Pinnapis Buxi

黄杨并盾蚧是我国园林绿化植物的一种主要害虫。由于该虫身被蜡质，防治困难。１９９２年应用蜡蚧灵等３种化学农药进行了防治技术研究和药效试验，结果表明：越冬雌成虫活动期和一代若虫出壳盛末期是防治最佳时期，蜡蚧灵和氧化乐果是比较理想的防治药剂。

Pinnapis baxi is considered to be one of the most important pest to ornamental plants in our country. Because the insect body has the wax Substance that block the insecticides (usually sprayed),there were Some difficulties in controlling it. In 1992,the tests of the effectiveness and control methods were carried out in Linfen prefection using Cerocide (a new insecticide that can resolves the wax ), Omethoate and methomyl for the control to the pest, which attacks chines ilex. Results showed that the stages of the development of the hibernate adult in spring and first instar larvae were better periods for the control and Cerocide and Omethoate were very effective.