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山茱萸是重要的经济树种,又是名贵的木本中药材,但由于广大药农缺乏对山茱萸的科学管理,忽视病害防治,使新老园区的山茱萸树遭受病虫危害,影响药农经济收入。 早期危害山茱萸树的病害主要有缩叶病和毛毡病,发生规律及防治措施如下: 1.缩叶病 属侵染性病害。病菌在树芽或树皮缝隙内过冬,翌年春季枝条展叶时,病菌侵入嫩叶,进行初次侵染,病菌侵入后致使叶片肥厚皱缩。此病在早春展叶后开始发生,4～5月继续发生,展叶时如降雨多,气温在10℃～15℃,发病严重。6月以后气温升高发病缓慢。
Dogwood is an important economic tree species, but also expensive woody Chinese herbal medicines, but due to the lack of scientific management of the majority of drug farmers Cornel, neglect of disease prevention and control, so that the old park of Cornus disease suffer pests and diseases, affecting the economic income of farmers and peasants. Early damage dogwood tree diseases are mainly leaf scrub and blanket disease, the occurrence of the rules and prevention measures are as follows: 1. Scrub disease is an infectious disease. Pathogens in the tree buds or bark cracks in the winter, the branches of the spring leaves the following year, the invasion of young leaves, the initial infection, the invasion caused by pathogen leaves folds hypertrophy. The disease started in the early spring after the leaf expo began to occur from April to May, such as rainfall when the leaves show, the temperature at 10 ℃ ~ 15 ℃, the incidence was severe. After June, the temperature rises slowly.