20%吡虫啉SL不同施药方式对棉田天敌数量动态影响的比较  

Compared the Effect of Imidacloprid 20% SL Applied in Different Methods to Quantity Dynamic of the Natural Enemies in Cotton Field

作　　者：姜运涛[1] 马德英[1] 杨保环[1] 奇曼古丽[1] 

机构地区：[1]新疆农业大学农学院,乌鲁木齐830052

出　　处：《农药》2009年第8期586-587,590,共3页Agrochemicals

摘　　要：比较了20%吡虫啉SL茎叶喷雾和灌根施药对棉田天敌数量动态的影响。结果表明:除对草蛉卵数量有一定影响外,吡虫啉600g/hm2灌根处理对天敌较安全;吡虫啉600g/hm2茎叶喷雾处理对天敌有较强的杀伤作用,各种天敌数量明显减少;吡虫啉225g/hm2喷雾处理除了对蚜茧蜂寄生僵蚜数量影响较大外,对其他天敌数量影响较小。The effect of imidacloprid 20% SL applied in different methods to the quantity of natural enemies were compared, results showed that treatmeni of imidacloprid 20% SL watering root is relatively safe to the natural enemies except to the egg quantities of Chrysopa perla. Whereas the foliar application of 600 g/ha treatment of imidacloprid 20% SL showed negative effect to the quantity of natural enemies, all kinds of natural enemies reduced significantly, however, the treatment of 225 g/ha is relatively safer to other natural enemies except Aphid Parasitoids.

关 键 词：20%吡虫啉SL 茎叶喷雾 灌根 天敌数量 

分 类 号：TQ450.21[化学工程—农药化工]