5种杀菌剂防治健宝南瓜白粉病的药效试验

The Effect Test of Five Fungicides to Control Powdery Mildew in Jianbao Pumpkin

摘要: 为了筛选有效防治南瓜白粉病的药剂，选用5种杀菌剂进行防治南瓜白粉病的药效试验。结果表明：25%乙嘧酚磺酸脂EC 1 500倍液、12.5%腈菌唑EC 1 000倍液和12%苯甲·氟酰胺SC 1 000倍液对南瓜白粉病均有较好的防治效果，其中以25%乙嘧酚磺酸脂防治南瓜白粉病效果最好，第3次药后7、14 d防效分别为82.8%、86.5%；3种药剂均可在防治南瓜白粉病上推广使用。

Abstract: In order to screen effective fungicides to control powdery mildew in pumpkin, five fungicides were selected for the efficacy test. The results showed that 1500 times solution of 25% acetylsulfonate EC, 1000 times solution of 12.5% myclobutanil EC and 1000 times solution of 12% benzyl-flutolanil SC all had better effect on pumpkin powdery mildew, among which 25% acetylsulfonate had the best effect, the control effects of 7 and 14 days after the third injection were 82.8% and 86.5% respectively. All the three fungicides could be widely used in the control of pumpkin powdery mildew.