氧化乐果打孔注药防治松沫蝉试验

Control test of Aphrophora flauipes using hole injection of omethoate

在被害本根径上部 ２０ ｃｍ处沿树干均匀打 ４个孔，孔与树干成 ４５°角，每孔注射氧化乐果的稀释液２ｍｌ。氧化乐果的稀释液有三种，分别为１：１、１：５、１：１０。试验结果表明，１：１０的氧化乐果稀释液防治效果达８７．２４％，且成本低，在生产中宜推广。

Four holes were made in the position beginning 20cm from the base of the tree at regular distance and in 45 angle with the trunk. 2ml of omethoate was injected into each hole. The omethoate liquid was prepared in three densities: 1: 1, l: 15, 1: 10. Test results indicated that the control effect reached 87. 24% in the liquid of 1:10 density.