YZ-905对沙蚕毒系农药防治蔬菜害虫的增效作用  

Synergism of Nereistoxin Insecticides with YZ-905 Against Vegetable Pests

作　　者：李人柯[1] 黄彰欣[1] 黄长安[2] 刘惠葵 

机构地区：[1]华南农业大学昆虫毒理研究室,广东广州510642 [2]广东省农业科学院农化中心,广东广州510640

出　　处：《华南农业大学学报》2000年第2期28-31,共4页Journal of South China Agricultural University

摘　　要：助剂YZ - 90 5能显著提高杀虫双药液的湿展能力 ,使药液在固体表面展开面积增加 1 85～ 3 1 7倍 ,提高药剂在叶表面的沉积量 0 6 3～ 0 6 9倍 ,使防治菜粉蝶幼虫增效 6 8%～ 1 9 5 % ,防治小菜蛾幼虫增效 2 4 5 %～ 37 9% 杀虫双降解动态符合一级动力学方程 加入YZ - 90 5合适的比例约为 0 0 3%YZ-905 could increase 1.85～3.17 fold of the spreading area of dimehypo solution on solid surfaces,0.63～0.69 fold of the deposits of dimehypo on leaf surfaces,6.8%～19.5% of control effects against imported cabbage worm ( Pieris rapae L.) in field and 24.5%～37.9% against Diamond Backmoth ( Plutella xylostella L.). The rules of decline of dimehypo in cabbages were well of relationship to the first grade dynamic equation.The optimum proportion of YZ 905 added in dimehypo was about 0.03% (W/V).

关 键 词：YZ-905 沙蚕毒系农药 蔬菜害虫 助剂 增效作用 

分 类 号：S482.3[农业科学—农药学] S482.91[农业科学—植物保护]