摘要
应用17 600 IU·mg-1 Bt悬浮剂防治小菜蛾幼虫,结果显示,17 600 IU.mg-1 Bt悬浮剂1 125 g·hm-2的防效为94.36%,高于16 000 IU·mg-1 Bt可湿性粉剂1 125 g·hm-2的防效(85.53%),是防治小菜蛾的有效生物药剂,推荐使用浓度为750～1 125 g·hm-2。
The effect of 17 600 IU.mg^-1 Bt SC against diamond backmoth （Plutella xylostella L） was determined. The control efficacy of 17 600 IU.mg^1 Bt SC 1 125 g.hm^-2 was 94.36%, higher than 16 000 IU.mg^-1 Bt WP 1 125 g.hm^-2,which of the later was 85.53%. The results showed that 17 600IU.mg^-1 Bt SC had an excellent effect for controlling Plutella xylostella L.,the dosage of 750-1 125 g.hm^-2 was recommended.
出处
《湖北农业科学》
北大核心
2009年第7期1652-1653,1664,共3页
Hubei Agricultural Sciences
基金
湖北省重大科技攻关项目(2006AA205A01)
