4种药剂浸种、拌种处理对早稻恶苗病预防效果评价

Field Efficacy of Four Chemical Reagents Used for Seed Soaking and Dressing on Rrice Bakanae Disease Prevention

摘要: 4种药剂浸种和拌种处理对水稻恶苗病进行预防效果试验，结果表明：25%咪鲜胺乳油、25%氰烯菌酯悬浮剂、62.5 g·L^-1精甲·咯菌腈悬浮种衣剂、4.23%甲霜·种菌唑微乳剂4种药剂采用浸种处理对水稻恶苗病的防效较好，防效达到96.60%以上；4.23%甲霜·种菌唑微乳剂采用拌种处理的防效也较好，防效达99.00%以上；62.5 g·L^-1精甲·咯菌腈悬浮种衣剂采用拌种处理的防效较差，防效仅为76.92%～88.01%。

Abstract: Field efficacy of four chemical reagents used for seed soaking and dressing on rice bakanae disease prevention were studied. The result showed that seed soaking of 25% Prochloraz EC, 25% JS399-19 SC, 62.5% g·L^-1 Metalaxyl·Fludioxonil SC, 4.23% Metalaxyl·Ipconazole ME could efficiently control rice bakanae disease, the control efficacy reached 96.60%; the treatment of seed dressing of 4.23% Metalaxyl·Ipconazole ME also had high control efficacy, which reached 99.00%; the control efficacy of seed dressing of 62.5% g·L^-1 Metalaxyl·Fludioxonil SC was low, which was only 76.92%-88.01%.