精甲霜灵·咯菌腈·嘧菌酯防治花生苗期土传真菌病害效果研究

Efficacy of Metalaxyl-M·Fludioxonil·Azoxystrobin on Controlling Soil-borne Fungal Diseases of Peanut Seedlings

采用种子包衣研究了精甲霜灵·咯菌腈·嘧菌酯对花生冠腐病和茎腐病防治效果,结果表明:经11%精甲霜灵·咯菌腈·嘧菌酯悬浮种衣剂200、300、400 g a.i./100 kg处理的种子对花生冠腐病和茎腐病的防效分别为81.92%~92.20%和76.36%~86.10%,两处试验田的出苗率为94.88%~95.75%和93.63%~95.25%,分别增产5.78%~13.14%和5.99%~8.40%。综合安全性、防治效果、增产效果,11%精甲霜灵·咯菌腈·嘧菌酯悬浮种衣剂对防治花生苗期土传真菌病害冠腐病和茎腐病具有较好的应用前景,生产上建议使用剂量为300~400 g a.i./100 kg种子。

Seed coating was used to study the efficacy of metalaxyl-M·fludioxonil·azoxystrobin on controlling the occurrence of peanut crown rot and stem rot.The results indicated that the control effect of three treatments(200,300 and 400 g a.i./100kg seeds)of metalaxyl-M·fludioxonil·azoxystrobin 11%FS on peanut crown rot and stem rot was 81.92%-92.20%and 76.36%-86.10%,respectively.The peanut seedling emergence rate of the two test fields was 94.88%-95.75%and 93.63%-95.25%respectively,and the yield increase was 5.78%-13.14%and 5.99%-8.40%,respectively.Considering the safety,control effect and yield growth effect,metalaxyl-M·fludioxonil·azoxystrobin 11%FS has good application prospects in controlling soil-borne fungal diseases of peanut seedlings,and it is high efficient in controlling peanut crown rot and stem rot by seedcoating treatment.The recommended dose is 300-400 g a.i./100 kg seeds in field.