山西苹果树腐烂病发生与防治技术研究

Infection and Control of Rot Disease in Apple Tree in Shanxi

2010年9—10月对山西省主要苹果产区腐烂病的发生和防治情况进行调查,结果显示,苹果腐烂病总体发病率为24.5%;随着树龄的增大,腐烂病为害加重,发病率和病情指数均有所提高,6～10 a树的发病率为6.5%,病情指数为1.25;11～18 a树的发病率为18.3%,病情指数为3.41;19 a以上树的发病率为48.7%,病情指数为15.47。不同地区间腐烂病的发生情况有所不同,其防治方法主要为发病后刮皮、涂药。

During September to October in 2010,the infection and control of rot disease in apple tree were investigated in apple areas in Shanxi province.The results showed that the incidence of this disease was about 24.5%.The older the trees are,the more severe the disease.The incidences and the disease index were 6.5% and 1.25,18.3% and 3.14,and 48.7% and 15.47 for the trees at the age of 6～10,11～18,and 19 years plus,respectively.The infection of the disease varied among different areas.The main curing methods for this disease are scraping or chemical daubing.