3种铜制剂对辣椒青枯病防治效果

摘要

为筛选合适的铜制剂用以防治辣椒青枯病，考察了86%波尔多液干悬浮剂、37.5%氢氧化铜悬浮剂和33.5%喹啉铜悬浮剂对辣椒青枯病的田间防治效果。结果表明：86%波尔多液干悬浮剂的防效最为显著。2次药后7 d，86%波尔多液干悬浮剂1000 mg/L对辣椒青枯病的防效为56.7%，37.5%氢氧化铜悬浮剂1000 mg/L的防效为51.3%，33.5%喹啉铜悬浮剂1000 mg/L的防效为2.4%。%For screening suitable cupric pesticides on capsicum bacterial wilt. Bordeaux mixture 86% DF, copper hydroxide 37.5% SC and oxine-copper 33.5% SC were used for field trials. The results showed that bordeaux mixture 86% DF 1 000 mg/L could control capsicum bacterial wilt effectively, with the control effect of 56.7%, the control effects of copper hydroxide 37.5% SC 1 000 mg/L and oxine-copper 33.5% SC 1 000 mg/L were 51.3% and 2.4%.