叙永县水稻重大病虫害组合用药技术示范效果初报

摘要

In 2011, Bayer combination drugs to control rice important diseases and insect were demonstrated in Xuyong county in order to ensure the safe of farmLand ecological and rice, and reduce drug costs. The results indicated that Bayer combination drugs that Daoteng 30mL/667m^2+ Nativoto 10g/667m2 were used in rice last tillering stags, Imidacloprid 4g/667m^2+Nativoto 15g/667m2 in last booting stage to control Chilo suppressalis (Walker), Cuaphalocrocis medina]is Guenee, Sogatella furcifera (Horvdth), Magnaporthe grisea, A namorph: Pyricula grisea and Thanatephorus cucumeris had goodly efficacy. Average control effect can be amounted to 88.76%. That can be used in control of rice diseases and insect pests as major drug application with efficiency and low toxicity in Xuyong county, Sichuan province.%为了保证对农田生态和稻米食用安全,降低用药成本,2011年在叙永县实施了水稻重大病虫害组合用药技术示范。示范结果表明：在水稻分蘖末期施用拜耳组合药剂氟虫双酰胺.阿维菌素100克/升悬浮剂30mL/667m^2＋肟菌.戊唑醇75%水分散粒剂10g/667m^2、孕穗末期施用拜耳组合药剂吡虫啉70%水分散粒剂4g/667m^2＋肟菌.戊唑醇75%水分散粒剂15g/667m^2,对水稻重大病虫害（二化螟、稻纵卷叶螟、白背飞虱、稻瘟病、纹枯病）防效表现较好,平均防效可达88.76%。该组合药剂高效低毒,可以在叙永县作为防治水稻重大病虫害药剂推广应用。