摘要
对泸水县核桃衰退及其气候、林分、病虫害进行调查和分析表明,泸水县核桃衰退是由非生物和生物因素综合引起的一种林木衰退病。诱发因子:气候变化、降雨量骤减、树龄偏大、林分结构和经营方式单一;激化因子:草履蚧、刺蛾、金龟子的为害;促进因子:豹纹木蠹蛾的为害、核桃枝枯病、腐烂病、溃疡病。
The result of the investigation and analysis of the climate, structure of stand and pests showed that walnut decline in Lushui County of Yunnan Province was a forest decline disease caused by abiotic and biotic factors. The main factors included predisposing factors: climate change, sharply reduction in rainfall, old ages of trees, simple stand structure and management. Inciting factors : the damage of pests, Drosicha Corpulenta ( Kuwana), Limacodidae, Scarabaeidae. Contributing factors: infection of Zeuzera leuconotum Butler, walnut twig blight, rot, canker disease.
出处
《中国森林病虫》
北大核心
2013年第3期28-30,15,共4页
Forest Pest and Disease
基金
云南省特色专业建设点西南林业大学生物技术建设项目
云南省重点学科森林保护学(XKZ200905)
怒江州科技局2012年科技发展项目资助
关键词
泸水县
核桃
衰退病
病因
Lushui County
Juglans regia
decline disease
causes