论文部分内容阅读
1996～1997年我们用新农药乐斯本在蔬菜上防治菜青虫,现将结果报告如下。1 材料与方法1.1 供试药剂和试验处理 用48%乐斯本(美国陶氏益农公司)700、800、900、1000倍液及对照01%克螨灵1000倍液、20%灭虫神200、800倍液、5%多虫净乳剂1500、2000倍液,设不用药为空白对照。小
1996 ~ 1997, we use the new pesticides, Lebanon vegetables in the prevention and control Pieris, now the results reported below. 1 Materials and methods 1.1 Test agents and test treatment with 48% Lesbian (Dow AgroSciences USA) 700,800,900,1000 times and control 01% grams of mites 1000 times, 20% pest control God 200,800 times the liquid, 5% multi-worm net emulsion 1500,2000 times, set no medicine as a blank control. small