BT悬浮菌剂(4000国际单位)防治大豆孢囊线虫的初步研究

Research of BT Suspension(4000 International Unit) to Prevent Soybean Cyst Nematode

试验结果表明：BT悬浮菌剂（4000国际单位）对大豆孢囊线虫有较好的防效,试验中的防效达49.3%~62.1%,有一定的增产效果,建议应用时以BT悬浮菌剂（4000国际单位）药种比1∶30为宜。

The result showed that the control effect of BT suspension（4000 international unit） on soybean cyst nematode was quite high. Its control effect reached 49.3%-62. 1% ,and the yield of soybean was improved. Proposing use the proportion of pesticide and seed was 1 ： 30.