板栗胴枯病又名干枯病、枝枯病、栗疫病等。该病对板栗为害极大 ,常成片为害 ,引起主干 ,主枝树皮腐烂 ,直至全株枯死。据对河南安阳、信阳等板栗产区调查 ,该病发生普遍 ,发病率一般在 2 0 %左右 ,管理粗放的达 4 2 %以上 ,严重影响板栗生长、成花结果 ,减产 2 5 %左右 ,经济 Chestnut terrapin also known as dry blight, branch blight, chestnut blight and so on. The disease is extremely harmful to the chestnut, often into pieces damage, causing the trunk, the main branch bark decay until the whole plant died. According to Henan Anyang, Xinyang and other chestnut producing areas survey, the disease occurs generally, the incidence rate is generally about 20%, extensive management of more than 42%, a serious impact on the growth of chestnut, into flower results, about 25% reduction, economic