摘要
用50%甲胺磷稀释液(甲胺磷:水=1:1)2ml注射竹腔防治竹织叶野螟进行药效机理试验结果表明:①注射后24小时,竹叶中的农药浓度就可杀死幼虫,持续时间为15天;注射后第4天,幼虫取食后20.2小时就死亡,速度最快,死亡率为100%;②幼虫死亡率、死亡速度不受虫龄影响。
The bamboo Ieaves containing inseticide are enough to kill and make the larv-adead in the 24-th hr. after 2 ml of inseticide (50% methamidophos oil emulsion:water =1:1)was injected into maobamboo. Its period of efficacy can last 15days. At the 4-th day thedeath of the larva which have eaten Ieaves take place in at 20.2-th hr. And the rate of deathis 100%. The test also proved the fact that speed and rate of death have nothing to do withits instar of the larva.
出处
《浙江林业科技》
北大核心
1992年第4期39-41,50,共4页
Journal of Zhejiang Forestry Science and Technology
