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除虫菊是优良杀虫植物,在自然界易被氧化,易被高温、日光、微生物所分解,故不残留,不污染环境,对人、畜等温血动物绝对安全。适应性强,我国广大地区都能种植,可在宅旁园地自种自用,以弥补农药的不足。现将除虫菊的几种使用方法介绍如下: 1、除虫菊粉:当除虫菊小花全开数日即可采下,平摊于帘架上阴干后磨成细粉,经过120目筛即是除虫菊粉,随即装入不漏气的塑料袋内封存备用。该粉可防治仓库害虫,将粮晒干装入缸中,表面撒一薄层除虫菊粉。如装麻袋,按4斤粮拌2斤粉,边装边撒,当仓粮放好后,在袋面再撒粉少许,能有效的防治米象、印度谷蛾、黄粉(虫甲)等。另外用沙布包好撒粉,还可杀死人、畜体上的虱子、跳蚤、
Pyrethrum is an excellent insecticidal plant, easy to be oxidized in nature, easy to be high temperature, sunlight, microbial decomposition, it is not residual, does not pollute the environment, human and animal and other warm-blooded animals absolutely safe. Adaptability, the vast majority of our country can be planted in the garden next to their own use to make up for lack of pesticides. Now pyrethrum use of several methods are described below: 1, Pyrethrum: When the pyrethrum flower full open a few days to adopt, flat on the shade dry ground into fine powder, after 120 mesh sieve that is pyrethrum, Then load airtight plastic bag sealed. The powder can prevent warehouse pests, the grain dry into the cylinder, sprinkle a thin layer of surface pyrethrum powder. Such as the installation of sacks, press 4 kg grain mix 2 pounds of flour, while the side Baling, when the grain storage, then dug a little powder in the bag surface, can effectively control the rice, India moth, yellow powder (insect) and so on . In addition, good dusting with sand cloth, but also kill people, carcasses lice, fleas,