摘要
为研究氧化乐果在树木内的分布和杀虫效果 ,对注入 4 0 %氧化乐果的树木叶子、木质部、韧皮部及树内天牛进行了测试。结果表明 ,氧化乐果在树体内分布不均匀 ,且以纵向输导为主 ,在 0 .3～ 3天内树叶内的浓度达到最高值 ,并维持高药效 2～ 3天。天牛的 72小时致死中浓度为1. 2 mg/kg。
The leaves,ligneous tissues,phloems of trees injected with 40% Omethoate and longicorn in the trees were tested. to research the distribution of Omethoate in the trunk and its killing effect in trunk.The result showed that Omethoate was not well distributed in trunk and the transportation in trees was mostly vertical .The concentration of Omethoate reached the peak in 3 days and sustained for 2 the 3 days.The LC 50 of the longicorn was 1....
出处
《中国森林病虫》
北大核心
2001年第S1期11-13,共3页
Forest Pest and Disease
