鲁山县小麦常年种植面积 2 .5 3万ｈｍ2 ,占总耕地面积的 70 .4%。近年来 ,随着气候、品种、栽培管理等农田生态条件的变化 ,小麦病虫草害的发生种类多、面积大、危害重。一般年份平均减产 10 %～ 15 % ,重发年份减产30 %以上 ,有些田块甚至绝收。因此 ,有效防治小麦病虫草害成 Lushan County, wheat perennial planted area of ​​25300 hm2, accounting for 70.4% of the total cultivated area. In recent years, with the change of ecological conditions of farmland such as climate, breed, cultivation and management, the occurrence of wheat pest and weed has many types, large area and heavy damage. The average annual output of 10% to 15% reduction, re-issued more than 30% reduction in production, and some fields even adversity. Therefore, the effective prevention and cure of wheat diseases and insect pests