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山茱萸(Cornus officinalis)为山茱萸科(Cornaceae)山茱萸属植物,其成熟干燥果肉(俗称枣皮)为我国常用名贵中药材。河南省南阳市(西峡、内乡和南召等县)为我国山茱萸主产区之一,仅西峡县截止1990年已发展到500万株,年产枣皮315万kg,产值达4 200万元,居全国首位。近年,作者对西峡县山茱萸产区进行病害调查时发现,由链格孢菌(Alternaria sp.)引起的山茱萸褐斑病发生普遍,该病严重发生时可致植株95%以上叶片枯死,落果率高达87%,造成山茱萸大幅减产,给当地果农带来严重经济损失。迄今,未见链格孢菌引起的
Cornus officinalis is a genus of genus Cornaceae. Its mature and dried pulp (commonly known as “Zappy”) is commonly used in China. Nanyang City, Henan Province (Xixia, Neixiang and Nanzhao counties) is one of the main producing areas of dogwood in China. Only Xixia County has grown to 5 million by 1990, with an annual output of 3.15 million kg of date peel and a production value of 4 200 Million, ranking first in the country. In recent years, the author of the Xixia County Cornus officinalis region disease investigation found that caused by Alternaria sp. (Alternaria sp.) Occurrence of cornus leaf spot disease occurs, the serious disease can cause more than 95% of plant leaves withered, deciduous The rate of up to 87%, resulting in a substantial cut of dogwood, causing serious economic losses to local farmers. So far, no Alternaria caused