石榴干腐病,不仅为害生长期间的果实,而且为害贮藏期果实,还浸染花器、果苔、新梢。此病在陕西、四川、安徽、山东等石榴产区均有发生。 石榴干癌病最适生长温度为24℃～28℃,最低为12.5℃,最高为35℃。干腐病菌主要在树干上的僵病果上越冬,僵果上的菌丝在翌年4月中旬前后产生新的孢子器,是该病菌的主要传播源。 石榴花蕾期即发病。受侵染的花瓣最初变褐色,以后扩 Dry pomegranate rot, not only harmful to the growth of fruits, but also damage the storage period fruit, but also dipping flower, fruit moss, shoots. The disease in Shaanxi, Sichuan, Anhui, Shandong and other pomegranate producing areas have occurred. The optimum growth temperature of pomegranate stem cancer is 24 ℃ ~ 28 ℃, the lowest is 12.5 ℃ and the highest is 35 ℃. Dry rot bacteria mainly on the dead stem stiff fruit on the winter, mycelium on the stiff fruit in the middle of April next year before and after the emergence of a new spore, is the main source of the bacteria. Pomegranate Bud period that disease. Affected petals initially brown, later expanded