文献类型：期刊文献

中文题名：甘肃省黄芪白粉病病原鉴定及田间药效试验

英文题名：Pathogen Identification and Chemical Control of Powdery Mildew on astragalus membranaceus

作者：陈泰祥[1];陈秀蓉[1];王艳[1,2];徐鹏刚[1];杨小利[1]

第一作者：陈泰祥

机构：[1]甘肃农业大学草业学院草业生态系统教育部重点实验室甘肃省草业工程实验室中-美草地畜牧业可持续发展研究中心,兰州730070;[2]甘肃中医学院药学系,兰州730000

第一机构：甘肃农业大学草业学院草业生态系统教育部重点实验室甘肃省草业工程实验室中-美草地畜牧业可持续发展研究中心,兰州730070

年份：2013

卷号：52

期号：8

起止页码：599

中文期刊名：农药

外文期刊名：Agrochemicals

收录：CSTPCD;;北大核心:【北大核心2011】；CSCD:【CSCD_E2013_2014】；

基金：甘肃省中药材产业科技攻关项目(GYC11-01)

语种：中文

中文关键词：黄芪;白粉病;病原鉴定;药剂防治

外文关键词：Astragalus membranaceus; powdery mildew; pathogen identification; chemical control

摘要：[目的]明确引起甘肃省黄芪白粉病的病原菌种类,并筛选出高效低毒的药剂用于田间防治。[方法]通过田间调查和形态学方法进行病原鉴定;选用5种高效低毒的杀菌剂进行田间药效试验。[结果]甘肃省黄芪白粉病病原为真菌界子囊菌门束丝壳属黄芪束丝壳Trichocladia astragali(DC.)Neger。田间药效试验结果表明:供试的5种杀菌剂中75%肟菌酯.戊唑醇WG 0.25 mg/L、10%苯醚甲环唑WG 1.44 mg/L和50%硫磺.三唑酮SC 1.26 mg/L效果较好,间隔8 d连续用药2次,防效达75%以上。[结论]75%肟菌酯.戊唑醇WG、10%苯醚甲环唑WG和50%硫磺.三唑酮SC是防治甘肃省黄芪白粉病的首选药剂,可在生产中交替使用。
[Aims] This study aims to identify the pathogen of powdery mildew of Astragalus mcmbranaceus in Gansu province and find efficient fungicides. [Methods] Pathogens were identified through field survey and morphological method. Five efficient fungicides with high efficacy and low toxicity were selected to carried out field trials. [Results] The pathogen was identified as Trichocladia astragali （DC.） Neger. Sensitivity testing for fungicides showed that trifloxystrobin-tebuconazole 75% WG at 0.25 mg/L, difenoconazole 10% WG at 1.44 mg/L, sulfur, triadimefon 50% SC at 1.26 mg/L provide significant control effect, after 2 times treatment at 8 d intervals, the control effect were all above 75%. [Conclusions] Trifloxystrobin＂ tebuconazole 75% WG, difenoconazole 10% WG, sulfur, triadimefon 50% SC could be used in rotation to control powdery mildew on A. membranaceus.