六种杀菌剂防治梨叶锈病田间试验
Shanghai Agricultural Science and Technology（2017）
Abstract
为有效防治梨叶锈病,测定了6种杀菌剂对梨叶锈病的田间防治效果.结果表明:第1次施药后8d,6种杀菌剂对梨叶锈病的防效均不明显;第2次施药后8d,6种杀菌剂对梨叶锈病具有显著的病叶率防效和病情指数防效,其中30％戊唑·多菌灵悬浮剂1 000倍液对梨叶锈病的防效较高,病叶率防效和病指防效分别为51.99％和52.47％;第2次施药后18 d,12.5％烯唑醇可湿性粉剂2 000倍液对梨叶锈病的锈孢子器病斑防效最高,为70.34％.
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