干热河谷地区麻疯树种植基地土垅大白蚁防治

Control of Macrotermes annandalei in Jatropha curcas plantation bases in dry-hot valley

试验调查了云南省双江县小黑江麻疯树良种繁育示范基地野外土垅大白蚁Macroterm esannandalei(Silvestri)危害麻疯树Jatropha curcasLinn.的情况。发现实生苗白蚁危害株率低于扦插苗,白蚁危害率与苗木的初植高度成指数负相关关系,与苗木感病率成指数正相关关系。采用杀螟丹、辛硫磷和高效氯氰菊酯以3种施药方法进行白蚁和病虫害综合防治田间试验,结果表明:各处理均有效,3%杀螟丹粉剂根施效果最好。基于上述调查和试验结果,提出白蚁防治建议。

Damage of Macrotermes annandalei on Jatropha curcus was surveyed in the Jatropha curcus stock breeding demonstration base of Xiaoheijiang in Shuangjiang County, Yunnan Province. The result showed that the trees developed from seedlings were more pest resistant than that from cuttings. The damage rate of the termite was negatively correlated with the initial height of seedlings planted and positively correlated with the seedling infection rate. Cartap, phoxim and high effective cypermethrin had good control effect on the termite. Among them root application of 3 % cartap dust was the most effective. Suggestions on the control of termite were given.