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由于杀虫双持效期长,挥发性强,对稻螟蛉、二化螟防治效果好,在稻区及荸荠、甘蔗、茭白等经济作物地区被广泛应用,但对桑蚕的危害性大,轻则麻痹蚕儿神经,出现慢性中毒症状,上簇后表现为吐平板丝,不结茧,重则造成中毒死亡。浙江仙居农药厂生产的三唑磷农药,经在水稻上防治试验结果,具有与杀虫双相似的效果,为此,我们进行了三唑磷对桑蚕毒性的生物试验,现将试验结果报道如下。
Because insecticidal double persistence long volatile and strong, the rice borer, rice stem borer prevention and control effect is good, in the rice and water chestnuts, sugar cane, chinense and other cash crops areas are widely used, but the harmfulness of silkworm, Ranging from paralysis of nervine child, chronic poisoning symptoms appear on the tuft after the performance of flat wire, does not cocoon, causing heavy poisoning death. Zhejiang Xianju Pesticide Factory production of triazophos pesticides, the results of the prevention and treatment of rice on the test has the same effect with insecticidal double, for which we conducted a biological test of triazophos toxicity to silkworms, the test results Reported as follows.