BT悬浮菌剂(4000国际单位)防治大豆孢囊线虫的初步研究

摘要

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.%试验结果表明:BT悬浮菌剂(4 000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(4 000国际单位)药种比1∶30为宜.