秋播辛硫·甲拌磷土壤处理对麦田白眉野草螟的防治效果

Field efficacy of soil treatment with mixture of phoxim and phorate on Agriphila aeneociliella during autumn wheat sowing

白眉野草螟(Agriphila aeneociliella)是近年来在山东省莱州市、山西省泽州县等地新发现的小麦害虫,严重时可导致麦田缺苗断垄、甚至毁种。本试验在山西泽州县白眉野草螟发生危害的3个镇24个村,针对秋季成虫产卵和幼虫初孵的关键时期,采用辛硫·甲拌磷土壤处理的方法,研究了统一集中防治、农民分散防治两种防治模式,对早春白眉野草螟幼虫种群的控制效果。结果显示,2013年白眉野草螟发生普遍比较严重;2014年统一集中防治田块未见发生危害,而农民分散防治田块仍有一定程度的发生。这表明秋播辛硫·甲拌磷土壤处理防治白眉野草螟过程中,统一防治效果明显好于农民分散防治。

In recent years,a new wheat insect pest,Agriphila aeneociliella ,occurred in Laizhou （Shandong）and Zezhou （Jincheng,Shanxi）,causing large-scale seedling lack,even destroying the whole sowing.In 3 towns 24 villages of all the A .aeneociliella appearance districts in Zezhou County,field efficacy of soil treatment with the mixture of phoxim and phorate by different operating modes in autumn chemical control was investigated against the pest in spring.The results showed that,compared with severe damage in the spring of 2013 without autumn chemical control previously,the larva population density and the total occurrence area were reduced significantly in the spring of 2014 after soil treatment in autumn of 2013.Furthermore,unified control mode had better effica-cy than farmer’s spray.In unified controlling fields,the larva population density were reduced to zero,while in farmer’s spraying fields,the larva population remained and damage were still observed to some extent.