1.清除田间病残体,集中烧毁,或深耕深翻,压埋病原。2.用50%多菌灵可湿性粉剂500倍液,或50%退菌特可湿性粉剂800倍液,或80%代森锰锌可湿性粉剂500倍液,或75%百菌清可湿性粉剂500-800倍液,于玉米雄药期喷1-2次,每隔10-15天喷1次。
1.清除田间病残体,集中烧毁,或深耕深翻,压埋病原。2.用50%多菌灵可湿性粉剂500倍液,或50%退菌特可湿性粉剂800倍液,或80%代森锰锌可湿性粉剂500倍液,或75%百菌清可湿性粉剂500-800倍液,于玉米雄药期喷1-2次,每隔10-15天喷1次。