嘧霉胺对菊花灰霉病的田间防治效果研究

Studies on Control Effect of Pyrimethanil 80% WG Against Ornamental Chrysanthemum(Botrytis cinerea Pers.)

田间药效试验结果表明,试验药剂嘧霉胺80%水分散粒剂对观赏菊花灰霉病具有较好防效,用药浓度400～600mg/kg(制剂稀释1 333～2 000倍),连续用药3次,末次防效达89%以上,是防治观赏菊花灰霉病较为理想的药剂,对作物作物和非靶标生物安全。

The results of field trials showed that Pyrimethanil 80% WG was good and a more ideal fungicide against ornamental chrysanthemum Botrytis cinerea Pers in guangzhou,at dose rate of 400～600mg/kg,the last control effect was above 89%。