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豆角(豇豆)是我省主要蔬菜之一,春、夏、秋均宜栽种。在每年花、荚期钻蛀性害虫为害猖獗,是主要防治对象。过去,以化学农药防治为主,虽取得一定防效,但因生长期花、荚并存,逐日开花结荚、采收,甚至施药后翌日采收,因此豆荚受化学农药污染严重。笔者为寻求既能控制该类害虫为害,又能解决豆角农药污染的有效防治措施,应用了我国新研制的生物农药青虫菌6号液剂进行田间效果的初步试验。现将材料整理报道如下。
Beans (cowpea) is one of the main vegetables in our province, spring, summer, autumn should be planted. In the annual flower, pod borer pests rampant, is the main control object. In the past, mainly chemical pesticides, although some control effect, but due to the growth of flowers, pods coexist, pod day flowering, harvesting, or even the next day after pesticide harvesting, so pod pollution by chemical pesticides. In order to seek effective control measures to control pests of these pests and to solve the problem of pesticide contamination in beans, the author applied the preliminary test of the effect of the 6 pesticides on the newly developed biocide Caterpillar fungus in the field. The material is now reported as follows.