问:芍药花得了炭疽病,请问怎么防治?
发病初期,选用50%多菌灵可湿性粉剂500-800倍液,或50%多硫悬浮剂500倍液,或50%甲基硫菌灵可湿性粉剂500-800倍液,或80%炭疽福美可湿性粉剂800倍液,或75%百菌清可湿性粉剂1000倍液+70%甲基硫菌灵可湿性粉剂1000倍液,每隔7天喷1次,连续2-3次。