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经调查分析了1998年广德县板栗枝干病害突发流行的原因主要是板栗干腐病和板栗溃疡病等病原菌的小种上升为优势种,导致板栗持久抗病性丧失,以及1998年春季出现春寒、寡日照多湿天气和营林措施不当等。提出了板栗枝干病害的综合防治措施。
The investigation and analysis of the epidemic of chestnut trunk stem diseases in Guangde County in 1998 were mainly caused by the emergence of the minor species of pathogenic bacteria such as dry chestnut and chestnut ulcer disease as dominant species and the loss of long-term disease resistance of chestnut, and the spring 1998 Appear in cold spring, oligo-wet weather and improper forest management measures. Proposed chestnut branch disease comprehensive prevention and control measures.