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近几年来,黑龙江省甜菜苗期害虫和立枯病发生普遍,危害较重,直接影响着甜菜保苗,是目前甜菜生产中急待解决的问题。由于使用3911闷种防治甜菜象虫,能减轻危害,但因3911毒性很高,每年在使用过程中,虽然做了大量的宣传工作,但仍有不同程度出现家畜、家禽中毒死亡事故,甚至有的工作人员也发生了中毒现象。加之连年使用3911闷种,象虫产生抗性,防治效果下降,因此,急需寻找高效低毒的新药剂取代3911。 1982年在阿城县杨树公社民权大队进行了药剂防治甜菜象虫及立枯病试验示范。采用35％甲基硫环磷和7％甲基硫环磷复合微粒剂及35％甲基硫环磷与50％福美双混用等处理,其试验结果整理如下。
In recent years, beet seedling pests and blight in Heilongjiang Province are widespread and harming more seriously, and have a direct impact on beet seedling preservation, which is an urgent problem in beet production. Because of the use of 3911 boring species control beetle insects, can reduce the harm, but because of the high toxicity of 3911, each year during use, although a lot of publicity work done, but there are still varying degrees of deaths of livestock and poultry poisoning, and even The staff also experienced poisoning. In addition, year after year, the use of 3911 nostrils, as insects produce resistance, prevention and control decreased, therefore, the urgent need to find new drugs with high efficiency and low toxicity instead of 3911. In 1982, the populace group of poplar commune in Acheng County conducted experiments on the prevention and control of beet armyworm and blight. The test results are summarized as follows: 35% methylthiophosphate and 7% methylthiophosphoric acid composite microparticle and 35% methylthiophosphoric acid and 50% thiram are mixed and treated.