文献类型：期刊文献

英文题名：Research on the effectiveness of using saturated steam treatment to eradicate Bursaphelenchus xylophilus in Pinus massoniana logs

作者：Wang, Qianqing[1] Zhang, Jian[2] Jiang, Jinghui[1] Wang, Jin[2] Chen, Ruiyao[1] Zhao, Liyuan[1]

第一作者：Wang, Qianqing

通信作者：Jiang, JH[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China;[2]Zhejiang Acad Forestry, Hangzhou 310023, Peoples R China

年份：2025

卷号：132

期号：4

外文期刊名：JOURNAL OF PLANT DISEASES AND PROTECTION

收录：;Scopus(收录号：2-s2.0-105010151718);WOS:【SCI-EXPANDED(收录号:WOS:001525775500002)】；

基金：The author extends gratitude to Prof. Jinghui Jiangand for his support of this study. This work was financially supported by The Project of Forestry Science and Technology of the Zhejiang Province (Project No. 2023SY03).

语种：英文

外文关键词：Log; Pine wood nematode; Saturated steam treatment; Lethal temperature

摘要：This study investigates the mortality rate of pine wood nematodes (PWNs) in logs treated with saturated steam at quarantined log processing sites. The aim is to mitigate the spread of PWNs during log transportation and enhance the high-value utilization of logs. Peeled Pinus massoniana logs were selected as the research subjects and were treated with saturated steam under various conditions. The treatment protocols involved setting the log core temperatures at 45 degrees C, 56 degrees C, and 65 degrees C with holding times of 30, 45, and 60 min. The mortality rates of PWNs at different locations within the logs, from the sapwood to the pith, were determined. The results indicated that within the target temperature range (45-65 degrees C), the mortality rate of PWNs was positively correlated with the log core temperature. At a log core temperature of 45 degrees C, the mortality rate of the nematodes gradually decreased. When the log core temperature reached 56 degrees C, the mortality rate of PWNs was 100% in the sapwood up to 1/4 of the log diameter and 99.68% between 1/4 and 1/2 of the log diameter. At a log core temperature of 65 degrees C for more than 0.5 h, the mortality rate of PWNs was 100% within the entire log. When the temperature in the sapwood up to 1/4 of the log diameter reached 56.5 degrees C, the mortality rate of PWNs was also 100%.