双钩异翅长蠹生物学特性及用防腐剂TWP防治试验

A Study on the Biology of Helerobostrychus aequalis and Its Control

双钩异翅长蠹是橡胶树锯材及其制品的严重害虫。在海南岛1年完成二至三代,约有16种阔叶材被害。用新的水溶性木材防腐剂TWP进行防治试验的结果:①TWP在木材中保持量1.0kg/m^3,初龄幼虫死亡率100％;②新鲜橡胶树锯材用2％TWP真空加压或振荡加压法处理,药剂保持量不少于3.7kg/m^3,可获得长久的保护效力;③TWP不含氯化酚化合物,对人畜和环境十分安全。

The bostrychid powder post beetle, Heterobostrychus aequalis Waterhouse is a serious borer of rubber wood. It has 2~3 generations a year and attacks about 16 species of hardwood in Hainan Island. A control test with a new water soluble preservative TWP was carried out and the results were as follows: (1) retention of TWP preservative in wood at 1.0 kg/m3 can eradicate its egg-larvae up to 100%; (2) green sawn timber of rubber wood can be treated with 2% TWP by vacuwm pressure or oscillating pressure methods and an enduring protection effect will be obtained with a retention dose of TWP in wood no less than 3.7 kg/m3;(3) the TWP preservative is safe to human being, animals and environment for there is no chlorophenol compounds included.