甘肃省河西地区芍药白粉病病原鉴定及田间药效试验  

Pathogen identification and field efficacy test of powdery mildew on Paeonia lactiflora in Hexi area of Gansu Province

作　　者：吴之涛 张英英 常浩 杨克泽 徐志鹏 汪亮芳 魏玉杰 任宝仓 杨宪忠 WU Zhitao;ZHANG Yingying;CHANG Hao;YANG Keze;XU Zhipeng;WANG Liangfang;WEI Yujie;REN Baocang;YANG Xianzhong(Key Laboratory of the Special Medicine Source Plant for Germplasm Innovation and Safety Utilization in Gansu Province,Gansu Academy of Agri-Engineering Technology,Wuwei 733006,Gansu,China)

机构地区：[1]甘肃省农业工程技术研究院甘肃省特种药源植物种质创新与安全利用重点实验室,甘肃武威733006

出　　处：《农药》2023年第10期758-762,776,共6页Agrochemicals

基　　金：财政部、农业农村部“国家中药材产业技术体系(CARS-21)”;甘肃省技术创新引导计划项目-民生科技专项(21CX6NA024);甘肃省自然科学基金(23JRRH0002)。

摘　　要：[目的]明确引起河西地区芍药白粉病的病原菌种类,并筛选安全高效的防治药剂。[方法]采用形态学和分子生物学方法对病原菌进行鉴定,同时选取7种药剂开展田间防效试验。[结果]芍药白粉病的病原菌为芍药白粉菌(Erysiphe paeoniae)。田间防效试验结果表明:2次施药后10%多抗霉素WP、2%嘧啶核苷类抗菌素AS和1%蛇床子素EW对芍药白粉病的防效较好,分别为58.40%、57.94%和56.66%,显著高于10%苯醚甲环唑WG和0.5%几丁聚糖AS。[结论]10%多抗霉素WP、2%嘧啶核苷类抗菌素AS和1%蛇床子素EW是防治芍药白粉病的首选药剂,可在生产中交替使用。[Aims]To determine the pathogenic species causing powdery mildew of Paeonia lactiflora in Hexi area,and to screen safe and efficient control agents.[Methods]Pathogens were identified through morphological and molecular biology method.Seven fungicides were used for field control efficacy trials.[Results]The pathogen of powdery mildew of P.lactiflora was Erysiphe paeoniae.The field control effect test showed that polyoxin 10%WP,pyrimidine nucleoside antibiotics 2%AS and cnidiadin 1%EW had good control effect on powdery mildew of P.lactiflora after twice applications,with control efficacy of 58.40%,57.94%and 56.66%respectively,significantly higher than that of difenoconazole 10%WG and chitosan 0.5%AS.[Conclusions]Polyoxin 10%WP,pyrimidine nucleoside antibiotics 2%AS and cnidiadin 1%EWcan be used in rotation to control powdery mildew on P.lactiflora.

关 键 词：芍药 白粉病 病原鉴定 田间防效 

分 类 号：S482.2[农业科学—农药学]