据北京市植护站通报,近日在该市基地露地韭菜中发现锈病病斑,叶片发生率在1%以下。研究人员室内镜检观察到暗褐色柄锈菌冬孢子堆和成熟的双胞冬孢子,未发现橙黄色的夏孢子堆和夏孢子。据了解,韭菜锈病的夏孢子堆出现在高温高湿条件下,在南方以夏孢子越冬;或在叶片和花葶上形成冬孢子堆,以冬孢子形式在病残体上越冬; According to the report of Beijing Plant Protection Station, rust spots were found in the leeks in the base of the city recently, with the incidence of leaves below 1%. The researchers observed the dark brown Puccinia rust fungus winter spore and mature twin teliospores, found no orange yellow summer spores and summer spores. It is understood that the leek rust summer spores occurred in high temperature and humidity conditions, in the south with summer spores overwintering; or in the leaves and scallops to form winter spores, with winter spores in the form of winter sickness;