小白菜是淡季供应的重要蔬菜,近年来为扩大花色品种和作为应急措施,从3月至11月都有种植。由于对小白菜害虫的防治缺乏系统研究,盲目防治带来严重的农药污染,食后中毒的事件时有发生,为减少农药残留,我们于1985—1987年在小白菜整个生产周年中,对害虫的发生规律进行了较为系统的调查研究,并根据虫情进行防治试验,现将结果报道如下。 Pak Choi is an important vegetable supply in the off-season, in recent years to expand the color varieties and as a contingency measure, from March to November have planted. Because of the lack of systematic research on the prevention and treatment of Chinese cabbage pests, blind control brings serious pesticide pollution, and poisoning incidents occur from time to time. In order to reduce pesticide residues, The occurrence of a more systematic investigation of the law, and based on the worm prevention and control test, the results are reported below.