药剂协同使用对小麦主要病虫防控效果初探

Study on the Control Effect of Synergistic Use of Agent on Main Wheat Diseases and Insect Pests

为探索小麦主要病虫害防治中不同药剂协同增效及精准施药技术,采用田间随机区组处理的方法,在小麦返青期、拔节期、灌浆期各协同喷施22%高效氯氟氰菊酯·噻虫嗪微囊悬浮剂+18.7%丙环唑·嘧菌酯乳油+氨基酸水溶肥1次,验证其对小麦主要病虫害的防控效果及产量形成的影响。结果表明,试验药剂对小麦蚜虫、红蜘蛛、白粉病等小麦主要病虫害有良好防控效果,防效最高可达95.22%、93.74%和90.72%;在试验剂量下,药剂对小麦生长发育无不良影响,并能够有效增加穗粒数和千粒质量,增产率最高可达20.62%。

In order to explore the synergistic effect and precise application technology of different pesticides in the control of major wheat diseases and pests,the method of field random block treatment was used to spray 22%high-efficiency cypermethrin.thia-methoxam microcapsule suspension+18.7%propiconazole・azoxystrobin EC+amino acid water-soluble fertilizer once at the turning green stage,jointing stage and filling stage of wheat,verify its control effect on main diseases and pests of wheat and its impact on yield formation.The results showed that the test chemicals had good control effects on wheat aphids,red spiders,powdery mildew and other major wheat diseases and pests,and the control effects were up to 95.22%,93.74%and 90.72%;Under the experimental dose,the medicament had no adverse effect on the growth and development of wheat,and could effectively increase the number of grains per panicle and 1000 grain quality,promote the increase of wheat yield,and the yield increase rate was up to 20.62%.