“以鸟治虫”是生物防治森林害虫的好方法,也是贯彻预防为主、综合防治的措施之一。森林鸟类,尤其在繁雏期间能消灭大量的害虫。用益鸟降低人工林虫口密度,抑制害虫的大发生,效果很显著,所以在人工林内招引和保护益鸟,为鸟类创造繁殖和定居条件,增加林中益鸟数量,消灭害虫很有必要。益鸟招引成本低廉,经济有效、方法简便易行,有利调节生态平衡。我们1968年在落叶松 “Birds to worm” is a good way for biological control of forest pests, but also implement the prevention, integrated prevention and control measures. Forest birds, especially during their young age, can destroy large numbers of pests. It is very necessary to reduce the population density of the plantation and to suppress the occurrence of the pests by using the beneficial birds so as to attract and protect the beneficial birds in the plantation so as to create the breeding and settlement conditions for the birds, increase the number of birds in the forest and eliminate pests. Beneficial birds attracting low-cost, cost-effective, method is simple and convenient, beneficial to adjust the ecological balance. We were in larch in 1968