中国森林病虫2025，Vol.44Issue(4)：16-21,6.DOI:10.19688/j.cnki.issn1671-0886.20250023
CO2对食菌型丽透体垫刃线虫滞育的影响
Effects of CO2 on the diapause of mycetophagous Deladenus siricidicola
摘要
Abstract
Deladenus siricidicola can be effectively used for the biological control of Sirex noctilio,a woodwasp infesting pine trees.To clarify the effects of CO2 concentrations and induction time on mycetophagous D.siricidicola,larvae of the nematode were induced at different concentrations for 6 h every day for five days,and the number ratio of larvae and adults during different induction time was counted after exposure to CO2 at concentrations of 0.2‰,0.3‰,0.4‰,0.5‰,0.6‰.The results indicated that within the tested CO2 concentration range,the proportion of larvae in the total nematode population increased significantly with the increase of CO2 concentration,while the proportion of adults decreased with the increase of CO2 concentration.There were significant differences in the proportion of larvae and the proportion of adults between different CO2 concentrations.At a CO2 concentration of 0.6‰,the larvae proportion was the highest,and the adult proportion was the lowest.Inducing the larvae of mycetophagous D.siricidicola at a CO2 concentration of 0.6‰ for 18 h can effectively induce the larvae to enter the diapause state.The results may provide a reference for prolonging the preservation time of mycetophagous D.siricidicola larvae,exploring storage conditions of mycetophagous D.siricidicola and the subsequent large-scale development of nematode biocontrol agents for S.noctilio.关键词
丽透体垫刃线虫/食菌型/CO2浓度/滞育/松树蜂Key words
Deladenus siricidicola/mycetophagous/CO2 concentration/diapause/Sirex noctilio分类
农业科技引用本文复制引用
龙崟,梁特,陈涛,宋敏,王郑通,石娟..CO2对食菌型丽透体垫刃线虫滞育的影响[J].中国森林病虫,2025,44(4):16-21,6.基金项目
国家重点研发计划"外来入侵生物本底信息及发生扩散大数据平台关键技术研究及应用示范"(2023YFC2605200) （2023YFC2605200）
