草原虫害生物和生态治理

Biological and Ecological Management of Grassland Insect Pests

草原虫害发生流行,一方面会造成草原严重退化,使草原生态系统遭受破坏。另一方面大量害虫还会啃食牧草,破坏草地植被,使优质牧草数量锐减,有毒有害杂草生长,威胁畜牧养殖业安全。在传统的草原虫害防控中,一直坚持药物防治模式,但由于药物选择不合理,在杀灭草原害虫的同时,使草场中的害虫天敌被消灭,生物群落呈现单一化。因此,在今后草原虫害防控中,需要加强生物和生态治理措施的探索,转变传统防治模式,营造复杂的草原生态结构,控制害虫繁殖生长。该文在论述草原害虫发生现状和发生原因的基础上,分析草原虫害的生物和生态治理措施。

On the one hand,the prevalence of grassland insect pests will cause serious grassland degradation and damage to the grassland ecosystem.On the other hand,a large number of pests will eat grass,destroy grassland vegetation,reduce the quantity of high-quality grass,poisonous weeds grow,threaten the security of animal husbandry.In the traditional control of grassland insect pests,the drug control mode has always been adhered to,but because of the irrational choice of drugs,the natural enemies of pests in grassland are eliminated and the biological community is unitary.Therefore,in the future,it is necessary to strengthen the exploration of biological and ecological control measures,change the traditional control model,build a complex grassland ecological structure,and control the reproduction and growth of pests.On the basis of discussing the present situation and causes of grassland insect pests,the biological and ecological control measures of grassland insect pests were analyzed.