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稻虱是我省水稻主要害虫之一,其主要捕食性天敌有蜘蛛和黑肩绿盲蝽等.长期以来,由于化学防治频繁与不合理的使用,使农田生态系中害虫和天敌的种群结构发生明显变化,一些害虫因而再猖獗.但化学防治,仍然是害虫防治中最速效、最经济、最能普遍应用的方法.为此,如何合理施药,减轻对天敌的毒害,使农药和天敌均能起到抑制害虫的作用,已成为急待研究解决的问题.
It is one of the main rice pests in our province and its main predatory natural enemies are spiders and black-shouldered green bugs, etc. For a long time, due to the frequent and unreasonable chemical control, the population structure of pests and natural enemies in farmland ecosystem Some pests became rampant again, but chemical control is still the most effective, economical and universal method for pest control.For this reason, how to apply pesticides reasonably and reduce the poisoning to natural enemies so that pesticides and natural enemies Can play a role in inhibiting pests, has become an urgent problem to be studied and solved.