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采用室内离体平皿法和田间试验 ,测定了人工模拟合成的新型植物源农用杀菌剂银泰对番茄早疫病菌 (Al ternariasolani)、叶霉病菌 (Fulviafulva)和灰霉病菌 (Botrytiscinerea)生长的抑制和对它们引起的 3种病害的防治效果。结果表明 ,2 0 %银泰EC在 0～ 2 0 0 μg/ml浓度范围内 ,对供试 3种病原菌的抑菌作用随着浓度的提高而增强 ,其EC50 分别为 6 5 .5 7g/ml、91.86 g/ml和 4 0 .6 4g/ml,对早疫病菌的抑菌活性和对照药剂扑海因基本相当 ,对灰霉病菌的抑菌活性强于扑海因。 2 0 %银泰EC 10 0 0mg/L防治番茄早疫病和叶霉病的效果分别达到 82 .6 %和 84 .9% ,银泰 2 0 0～ 80 0mg/L防治番茄灰霉病的效果达到 78.4 %～ 90 .9% ,均明显优于对照药剂扑海因的防效。
In vitro and in vivo experiments were carried out to determine the inhibition of the growth of Alternariasolani, Fulvia fulva and Botrytis cinerea of the new plant-derived fungicide Yintai, which was artificially synthesized. Three kinds of diseases caused by their control effect. The results showed that the antibacterial activity of 20% Yintai EC at the concentration range of 0 ~ 200 μg / ml increased with the increase of the concentration of the tested pathogens, with EC50 of 65.57 g / ml , 91.86 g / ml and 40.64 g / ml, respectively. The antibacterial activity against A. blight was similar to that of the control agent, and the antibacterial activity against Botrytis cinerea was stronger than that of the test compound. The control effect of 20% Yintai EC10 0 0 mg / L on tomato early blight and leaf mold were 82.6% and 84.9%, respectively, and the effect of Intime 200 ~ 80 0mg / L on tomato gray mold was 78.4 % ~ 90 .9%, were significantly better than the control drug rhabdadine control effect.