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嘧啶氧磷(N-23)是一种新合成的有机磷杀虫剂,化学名称为0,0—二乙基-0-(2-甲氧基-4-甲基嘧啶基-6-)硫(酮式)代磷酸酯。结构式如下: 该药于1974年开始由沈阳化工研究院和苏州化工厂研制合成。该药具有触杀、胃毒和内吸渗透作用。对水稻螟虫、稻纵卷叶螟、叶蝉、稻瘿蚊、地下害虫、抗性蚜、螨等多种害虫均有良好的防效,是一种杀虫谱较广、毒性较低的高效有机磷新品种。小白鼠口服嘧啶氧磷急性中毒致死中量(LD_(50))为109.5毫克/公斤。为了进一步研究嘧啶氧磷对稻瘿蚊的防治效果,我们应用沈阳化工研究院和苏州化工厂的50％嘧啶氧磷乳油样品。由广东农林学院植
Pyrimidine oxyphosphate (N-23) is a newly synthesized organophosphorus insecticide with the chemical name 0,0-diethyl-O- (2-methoxy-4-methylpyrimidin-6- Thi (keto) phosphoro-esters. Structural formula is as follows: The drug started in 1974 by the Shenyang Chemical Research Institute and Suzhou Chemical Plant developed. The drug has contact kill, stomach poisoning and absorption effect. On rice stem borers, rice leaf roller, leafhoppers, rice gall midge, underground pests, resistance aphids, mites and other pests have good control effect, is a broad insecticidal spectrum, low toxicity and high efficiency New organic phosphorus species. Mice in oral pyrimidine toxicity of acute lethal dose (LD_ (50)) was 109.5 mg / kg. In order to further study the effect of pyrimidine on the control of rice gall midge, we applied 50% of the samples of pyrimidine oxygen in Shenyang Chemical Industry Research Institute and Suzhou Chemical Plant. Planting by Guangdong Agriculture and Forestry University