摘要
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。
Inhibition of YinTai (a new artificial synthesized agricultural fungicide) on the tomato pathogens, Alternaria solani,Fulvia fulva, Botrytis cinerea and the diseases control effect were tested respectively by means of the growing rate method and field experiments. The results showed that 20% YinTai EC has a stronger inhibiting effect on the three kinds of tomato pathogens when its concentration was increased 0～200μg/ml. The EC 50 of 20% YinTai EC to experimental pathogens was 66.26μg/ml, 92.79μg/ml, and 40.69 μg/ml, respectively. This chemical expressed, a generally similar, slightly lower, and slightly stronger inhibition as what 50% Iprodione WP did on Alternaria solani, Fulvia fulva, and Botrytis cinerea, respectively. The field trial indicated that the control effect of 20% YinTai EC 1 000 mg/L on early tomato blight and leaf mold were 82.6% and 84.9%, 200～800 mg/L respectively. The effects effect on tomato gray mold was up to 78.4%～90.9%. Twenty pencent YinTai EC produced better integrated control on tomato diseases than 50% Iprodione WP did.
出处
《中国农业科学》
CAS
CSCD
北大核心
2002年第7期863-866,共4页
Scientia Agricultura Sinica
基金
山东省重大科技攻关项目
