摘要
Abstract
Objective] The aim was to study the occurrence situation of grassland pests in Ningxia,and explore effective control measures. [Method] By using sweep network survey method,sample box survey method,occurrence period investigation method,100 step surprised moth method,branch calculation method,the occurrence area of grasshoppers,Chrysolina aeruginosa,Holcocerus artemisiae,Frankliniella occidentalis,al-falfa aphid,density before and after control was investigated.[Result] The results showed that total occurrence area of grassland pests in Ningxia was 71.23 ×104 hm2 ,damage area of grasshoppers, Chrysolina aeruginosa,Holcocerus artemisiae,Frankliniella occidentalis and alfalfa aphid were 39.16 ×104 hm2 ,18.75 ×104 hm2 ,3.41 ×104 hm2 ,9.91 ×104 hm2 respectively;total control area was 10.56 ×104 hm2 ,accounting for 14.8%of damage area;4.5% beta cypermethrin had significant control effect on grasshoppers,which is an ideal agent for the prevention and control of grasshoppers.[Conclusion] The study can provide basic data for protection and construction of eco-environment in Ningxia grassland.关键词
草原蝗虫/沙蒿金叶甲/防治Key words
Grasshoppers/Chrysolina aeruginosa/Prevention and control分类
农业科技
