苹果炭疽叶枯病的田间防控试验

Field Test on Controlling Glomerella cingulata of Apple Tree

对凯润等药剂防治苹果炭疽叶枯病的效果进行研究。结果表明,在金帅、嘎啦两个品种的炭疽叶枯病防治中,25%凯润乳油2 000倍+70%丙森锌可湿性粉剂700倍、25%凯润乳油2 000倍+43%戊唑醇悬浮剂3 000倍两个组合效果最好,且显著优于其他药剂组合。25%凯润乳油是防治苹果炭疽叶枯病的适合推广应用杀菌剂,在发病严重的果园,6月、7月尤其连续降雨前后要及时喷施该药剂。

The control effect of pyraclostrobin and other pesticides against Glomerella cingulata was as-sessed through field experiment .The results showed that the combinations of 2 000 times 25%pyraclostrobin EC dilution＋700 times 70%propineb WP dilution and 2 000 times 25%pyraclostrobin EC dilution ＋3 000 times 43% tebuconazole SC dilution had significantly better control effects against Glomerella cingulata for Golden Delicious and Gala apple trees compared to the other pesticide combinations .In conclusion , 25%pyr-aclostrobin was suitable for popularization and application;in the orchards with severe occurrence of Glomerel-la cingulata, it should be used in time in June and July month , especially after continuous rainfall .