中国森林病虫2026，Vol.45Issue(1)：34-36,3.DOI:10.19688/j.cnki.issn1671-0886.20250067
甘肃省康县病(枯)死松树传播松材线虫病研究
Transmission of pine wilt disease from dead pine trees in the forest areas of Kangxian county,Gansu province
杨工 1叶建仁 2宋江江1
作者信息
- 1. 甘肃省陇南市康南林业总场,甘肃 康县 746500
- 2. 南京林业大学,江苏 南京 210037
- 折叠
摘要
Abstract
In 2021,Gansu province confirmed its first case of pine wilt disease in Kangxian county,Longnan city,making it a new epidemic zone in the westward expansion of the disease within China.To further clarify the transmission patterns and characteristics of pine wilt disease in Kangxian county,the number of dead pine trees,the time of death,the number of the emergence hole of Monochamus alternatus were investigated,and the number annual changes of M.alternatus populations were monitored in the disease-affected areas of Kangxian county from 2021 to 2023.The results indicated that the number of dead pine trees and M.alternatus populations decreased annually after three consecutive years of cleaning up infected pine trees,among which the number of dead pine trees with emergence holes decreased more significantly.There was significant correlation between the spread of pine wilt disease and the time of death.Dead pine trees were the common host and medium for both the pathogenic nematode and its M.alternatus,playing a closed-loop chain bearing and carrying function in the disease infection cycle,and having strong epidemic transmission.Emergence hole of M.alternatus were not detected on healthy pine trees or newly dead pine trees in current year.Consequently,newly dead pine trees do not transmit the epidemic in current year in Kangxian county,Gansu province.These results provided support for formulating local epidemic prevention and control strategies and technical measures for the removal of infected trees.关键词
病(枯)死松树/松墨天牛/传播/松材线虫病Key words
dead pine tree/Monochamus alternatus/transmission/pine wilt disease分类
农业科技引用本文复制引用
杨工,叶建仁,宋江江..甘肃省康县病(枯)死松树传播松材线虫病研究[J].中国森林病虫,2026,45(1):34-36,3.
