论文部分内容阅读
甲嘧硫磷0,0—二甲基—0—(2—二乙氨基—6—甲基嘧啶-4基)硫代磷酸酯,是一种广谱杀虫剂,对哺乳动物的LD50>2000毫克/公斤,现在已发展用于防治贮藏物害虫。完全杀死敏感的和对马拉硫磷有抗性的害虫品系的最低剂量,甲嘧硫磷相当于杀螟硫磷,但都要比马拉硫磷、溴硫磷、碘硫磷、杀虫畏和敌敌畏的剂量低。对允许某些成虫产卵但能杀死其后代的较低剂量进行比较时,情况也是如此。在试验的全部杀虫剂中,仅是γ—666对谷蠹的防治效果与其他害虫一样。甲嘧硫磷能保护谷物免受虫子的侵袭,同时也能消灭重要谷物害虫幼虫的为害。因此在某些方面,甲嘧硫磷作为一种贮藏物杀虫剂是非常适宜的。
Methylthio-0,0-dimethyl-0- (2-diethylamino-6-methylpyrimidin-4-yl) phosphorothioate is a broad spectrum insecticide with LD50 of> 2000 mg / kg, has now been developed for the control of stored pests. The lowest dose of the insecticidal strain that completely killed the sensitive and malathion-resistant insects, the corresponding dose of fenitrothion to fenitrothion, was higher than that of malathion, bromophosphates, Dicamba and dichlorvos low dose. The same is true when comparing lower doses that allow some adults to lay eggs but kill their offspring. Among all the pesticides tested, only γ-666 had the same control effect against Trichosanthes as other pests. Cefosunar protects cereals from insects and at the same time eliminates the damage of important grain pests. Therefore, in some aspects, tetramethoxine is very suitable as a storage insecticide.