5%氟虫腈悬浮种衣剂拌种防治玉米田蛴螬效果及使用技术

Control Effects of 5% Fipronil Suspension Concentrates for Seed Dressing against Grubs in Corn Field and Application Technique

[目的]了解5％氟虫腈悬浮种衣剂拌种防治玉米田蛴螬的效果,为该制剂的进一步推广应用提供参考.[方法]通过小区试验研究了5％氟虫腈悬浮种衣剂拌种对玉米田蟒螬的防治效果、最佳使用剂量及安全性.[结果]5％氟虫腈悬浮种衣剂玉米拌种后播种是防治玉米田蛴螬的较好药剂,建议每100kg种子用5％氟虫腈悬浮种表剂2 000 ～3 000 ml进行机械或人工拌种,田间蛴螬常年发生较重田块,100 kg种子可用5％氟虫腈悬浮种衣剂4 000 ml进行拌种,拌种时按100 kg种子所用药量用水2L的比例稀释,将药剂和种子拌匀放阴凉通风处稍晾后即可播种.[结论]为玉米田蛴螬的防治提供了理论依据.

[Objective] Control effects of 5％ Fipronil suspension concentrates for seed dressing against grubs in corn field were studied to provide reference for further application.[Method] Control effects,the best dosage and safety to corn of 5％ Fipronil suspension concentrates for seed dressing against grubs in corn field were studied by plot test.[Result] Sowing corn treated by 5％ Fipronil suspension concentrates for seed dressing was a good method to control grubs.It is suggested that the 5％ Fipronil suspension concentrates for seed dressing was treated by mechanical or artificial seeding according to 2 000-3 000 rml per 100 kg seeds; as for field with serious grubs,the 5％ Fipronil suspension concentrates for seed dressing was treated by mechanical or artificial seeding according to 4 000 ml per 100 kg seeds.The formulation was diluted by water according to 2 L per 100 kg seeds.[Conclusion] The results provides theoretical basis for control of grubs in corn field.