防治害虫的目的在于消灭害虫的为害或减輕其为害程度至一定可能的水平,从而使农业生产不致受到損失或挽救損失至最低可能的程度。防治害虫的途径一般可归納为:化学防治、物理防治、生物防治、农业防治和机械防治。这些防治途径中,物理防治的內容在过去比較单薄,但自从近年利用射綫可形成不育,为害虫防治开辟了一个新的途径,对将来創造更新的防治方法,使人抱有很大希望。不过目前所知道的方法尚未能达 Pest control is aimed at eliminating or lessening the extent of the pest to a certain level possible, so that agricultural production can not be lost or rescued to the lowest possible extent. The ways to control pests can generally be summarized as: chemical control, physical control, biological control, agricultural control and mechanical control. Of these control approaches, the content of physical control has been relatively weak in the past. However, since the use of radiation to form sterility in recent years, it has opened up a new avenue for pest control and created a promising future for prevention and control of pests . However, the methods currently known have not yet reached