【作者】 赤国彤； 李亚宁； 孟庆芳； 冯丽娜； 张汀； 刘大群；

【Author】 ZhangTing,Feng Lina,Chi Guotong,Meng Qingfang,Li Yaning,Liu Daqun (College of Plant Protection,Agricultural University of Hebei,Biological Control Center of Plant Diseases and Plant Pests of Hebei Province,Baoding,071001)

【机构】 河北农业大学植物保护学院河北省农作物病虫害生物防治工程技术研究中心；

【摘要】 通过盆栽和田间药效试验,研究了Men-myco-93-63生物制剂对黄瓜和甜瓜白粉病的防治效应。盆栽试验结果表明,先施用生物制剂的100、200倍液后接种病原菌,可显著提高黄瓜的抗病能力,降低发病率,防效达到89.9%和77.0%;先接种后施用生物制剂的100、200倍液,在一定程度上能抑制病原菌的扩展,也具有防治作用,防效达到80.8%和54.5%。田间调查表明,生物制剂的200、400倍液对甜瓜白粉病的防效与清水对照相比,差异都达到显著水平,并且400倍液防效高于化学药剂阿米西达。更多还原

【Abstract】 The control effects of Men-myco-93-63 biological agent on melon powdery mildew were tested in greenhouses and fields.The greenhouse trial results demonstrated that 100-fold and 200-fold biological agent were effective to the disease,and the disease index of the treatments was significantly reduced.The control efficacy of the treatments ’spraying before inoculation’ was 89.9%and 77.0%,while that of the treatments ’spraying after inoculation’ was 80.8% and 54.5%.The field trials showed that the relative control efficacy of 200-fold and 400-fold biological agent was more significant than control of water and 400-fold biological agent was better to the chemical drugs.更多还原