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| Studies on Identification of Capsicum Anthracnose in Sichuan and Screening of Control Agents |
| ZHANG Heqing1，4，SONG Zhanfeng2，4，HAN Shuai1，WU Jie1，MIAO Mingjun2，4，XI Yadong1，3*，QIAO Xin1 |
| 1 Institute of Plant Protection，Sichuan Academy of Agriculture Sciences，Key Laboratory of Integrated Pest Management on Crops in Southwest，Ministry of Agriculture and Rural Affairs，Chengdu 610066，Sichuan，China；2 Horticulture Research Institute，Sichuan Academy of Agriculture Sciences，Vegetable Germplasm Innovation and Variety Improvement Key Laboratory of Sichuan Province，Chengdu 610066，Sichuan，China；3 Sichuan Province Engineering Technology Research Center of Vegetables，Chengdu 611934，Sichuan，China；4 College of Biological and Food Engineering，Chongqing Three Gorges University，Chongqing 404120，China |
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Abstract In order to identify the pathogenic strains of pepper anthracnose in pepper-producing areas of Sichuan，this experiment collected，isolated and identified pathogens of pepper anthracnose in Ziyang and Yanyuan，etc. 7 pepper-producing areas and adopted mycelium growth rate method to test the indoor toxicities of 10 fungicides on Capsicum anthracnose．This study also adopted in vitro fruit method to measure the control impact of 6 fungicides on Capsicum anthracnose．The results indicated that the isolated pathogens of pepper anthracnose from these 7 pepper-producing areas were all Colletotrichum scovillei．C. scovillei hypha were highly sensitive to prochloraz，tebuconazole，fluconazole，difenoconazole，fluazinam and mycloconazole．All these 6 fungicides had better prevention and control effects on pepper anthracnose．The order of their effects from high to low was prochloraz（95.66%）＞ tebuconazole（92.43%）＞ fluconazole（81.00%）＞ mycloconazole（75.29%）＞ fluazinam（72.40%）＞ difenoconazole（67.67%）．
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Received: 27 July 2023
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