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本文对黄瓜炭疽病的发病条件,扩展情况,品种抗病性鉴定及有效杀菌剂筛选等方面进行了研究。初步确定,影响该病发生和流行的主导因子是湿度。发病适宜湿度为84~98%,相关系数 r=0.9928。适宜的温度范围20~25℃,防治技术应以综合防治为主,辅以药剂防治。筛选出适于保护地应用的5%百菌清粉尘剂,防治效果在80%以上。
In this paper, the incidence of cucumber anthracnose conditions, expansion, identification of varieties of disease resistance and effective screening of fungicides were studied. Preliminary determination, the dominant factor affecting the occurrence and prevalence of the disease is humidity. The incidence of suitable humidity is 84 ~ 98%, the correlation coefficient r = 0.9928. The appropriate temperature range of 20 ~ 25 ℃, prevention and control technology should be based on comprehensive prevention and control, supplemented by chemical control. Screening for the protection of the application of 5% chlorothalonil dust control, prevention and control of more than 80%.