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本文在室内条件下采用生测方法评价了 10个 α-膦酰基氨基甲酸酯类化合物对 4种昆虫 (粘虫、豆蚜、叶蝉、红蜘蛛 )、 4种病原菌 (稻纹枯病菌、油菜菌核病菌、棉立枯病菌、麦类赤霉病菌 )和 6种植物 (稗、高粱、小麦、油菜、黄瓜、萝卜 )的生物活性。生测结果表明 ,在浓度为 5 0 0 m g/ L 时 ,化合物 a～ j对蚜虫和叶蝉具有一定杀虫活性 ,其中化合物 e对叶蝉的致死率为 6 1.92 % ,化合物 g对蚜虫的致死率为 88.37% ,但对粘虫和红蜘蛛无效 ,在 10 0 mg/ L 时 ,化合物 d对油菜菌核病菌、麦类赤霉病菌、稻纹枯病菌和棉立枯病菌等菌丝生长的抑制率分别为 87.86 %、 5 4.40 %、 41.18%和 18.99% ,化合物 e对稻纹枯病菌、油菜菌核病菌的麦类赤霉病菌的菌丝生长抑制率分别为 5 2 .94%、 5 1.79%和 42 .90 % ,其余化合物的抑菌活性较略或无活性 ;在 10 0 m g/ L 时除化合物 d对稗草和高粱的生长有一定抑制活性外 ,其余化合物均无除草活性
In this paper, the bioassay of ten α-phosphonocarbamates on four insects (Mythimna separate, Myzus persicae, Myzus persicae and Spider mite), four pathogenic fungi (Rhizoctonia solani, Rape, Sclerotinia and Gibberella zeae) and six species of plants (barnyard, sorghum, wheat, canola, cucumber, radish). The bioassay results showed that the compounds a ~ j had certain insecticidal activity against aphids and leafhoppers at a concentration of 500 mg / L, of which the lethality of compound e to leafhoppers was 6 ~ 1.92% The lethality rate was 88.37%, but it was ineffective against armyworm and spider mite. At the dose of 100 mg / L, the effect of compound d on mycorrhizal fungi Sclerotinia sclerotiorum, Fusarium graminearum, Rhizoctonia solani and Rhizoctonia solani The inhibitory rates of mycelium growth were 87.86%, 5.44%, 41.18% and 18.99%, respectively. The mycelial growth inhibition rate of compound e against R. solanacearum and R. solani was 52.94 %, 5 1.79% and 42.90%, respectively. The antibacterial activities of other compounds were slightly or no activity. When the concentration of compound d was 100 mg / L, the growth of barnyardgrass and sorghum had some inhibitory activities, while none of the other compounds Herbicidal activity