山楂树病虫害是山楂生产中的主要灾害之一,经常造成严重减产或树体死亡。为适应山楂生产大发展,我们对山楂树病害进行了调查,以摸清主要为害种类和为害程度。枝枯萎病分布与为害情况发生比较普遍以晋城市、壶关县、沁水县等产区较多,一般园枝发病率在10—15％,严重的树可达30—40％。已知辽宁省病梢率为1—5％,严重园达12.8％山东省病梢率在15—30％,严重的达48％。症状该病以盛果期大树、弱树发病重,尤以内膛病多。幼树未见发生,在不同地形当中以沟凹地发病重。因在开花前后表现症状,故又称“山楂花期果 Hawthorn Pests and diseases are one of the major disasters in the production of hawthorn, often resulting in severe cuts or tree deaths. In order to adapt to the great development of hawthorn production, we conducted a survey on hawthorn diseases to find out the main types of damage and the degree of harm. Fusarium wilt distribution and damage occurred more commonly in Jincheng City, Huguan County, Qinshui County and other producing areas are more common garden branches in the incidence of 10-15%, severe trees up to 30-40%. It is known that Liaoning province has a prevalence rate of 1-5%, a severe park rate of 12.8%, a disease rate of 15-30% in Shandong Province, and a serious rate of 48%. Symptoms of the disease to Shengguo period trees, weak trees, severe disease, especially in the bore more. Saplings did not happen, among the different terrain in the ditch to severe disease. Because of symptoms before and after flowering, it is also known as "Hawthorn florescence fruit