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辣椒疫病是新疆辣椒上的重要病害之一,关于辣椒疫菌(Phytophthora capsici)的越冬规律,国内末见详细报导,本文就此对该菌在新疆的越冬规律进行了比较全面的研究。查明了该菌在种子上不能越冬;因菌丝耐寒性差,在新疆田间也不能成为初次侵染来源;其主要侵染来源是土壤中和植物病残体上越冬的卵孢子。
Phytophthora capsici is one of the most important diseases in Xinjiang. As to the overwintering regular of Phytophthora capsici, it has been reported in detail at the end of this paper that the overwintering regularity of this bacterium in Xinjiang has been studied in this paper. It was found that the fungus could not overwinter in the seeds. Because of the poor cold tolerance of the mycelium, it could not be the primary source of infection in the field in Xinjiang. The main source of infection was the overwintering oospores in soil and plant diseases.