马铃薯枯萎病和干腐病防治药剂筛选试验

Screening Test for Control Agents Against Potato Fusarium Wilt and Dry Rot

为筛选出对马铃薯枯萎病和干腐病防治效果好、成本低的药剂,开展了不同药剂防治马铃薯枯萎病和干腐病的药效试验。结果表明,25%嘧菌酯悬浮液和2.5%咯菌腈悬浮种衣剂对马铃薯干腐病和枯萎病有一定的防效,均未出现药害,对马铃薯生长安全,2.5%咯菌腈悬浮种衣剂对马铃薯干腐病和枯萎病的防效稍高于25%嘧菌酯悬浮液。25%嘧菌酯悬浮液和2.5%咯菌腈悬浮种衣剂对马铃薯有一定增产作用。

In order to screen out the effective and low-cost insecticides against potato fusarium wilt and dry rot, the efficacy test of different insecticides against potato fusarium wilt and dry rot were carried out. The results showed that 25%azoxystrobin SC and 2.5% fludioxonil FS had a certain control effect on potato dry rot and fusarium wilt, without drug damage,and they were safe for potato growth. The control effect of 2.5% fludioxonil FS on potato dry rot and fusarium wilt was slightly higher than 25% azoxystrobin SC. 25% azoxystrobin SC and 2.5% fludioxonil FS have certain effect on increasing potato yield.