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苹果痘斑病是一种生理病害,发生在采收前。起初,以果点为中心,果面出现疏密不等的小斑点,直径约为1毫米,果皮变为褐色至暗褐色,其周围出现紫红色晕,晕圈直径约半厘米左右。其后,果点附近组织凹陷,形成直径为1～2毫米的暗褐色痘斑。切开果皮,可见痘斑下深及一毫米左右的果肉组织变褐,呈海绵状,每个病果上的痘斑数目因病势轻重而不同,少则几个,多者达数百个,以陌面和果实顶部较重。贮运期间,病果易受果腐菌类侵染而腐烂。
Apple pox disease is a physiological disease that occurs before harvesting. At first, the center of the fruit is a small spot of sparse and dense fruit with a diameter of about 1 mm. The peel turns brown to dark brown with a purple-red halo around it with a halo of about half a centimeter in diameter. Subsequently, the tissue near the depression, forming a diameter of 1 to 2 mm dark brown pox spots. Cut the peel, visible pockmarkt deep and about a millimeter of the pulp tissue brown, sponge-like, each disease on the number of pox due to different pathological severity, ranging from a few, many of up to hundreds, To the top of the street and fruit heavier. During storage, disease and fruit susceptible to fruit rot fungus infection and decay.