植物根系分泌物增效斯氏线虫对橘小实蝇幼虫的侵染

doi:10.16409/j.cnki.2095-039x.2026.01.002

中国生物防治学报 ›› 2026, Vol. 42 ›› Issue (4): 868-874.DOI: 10.16409/j.cnki.2095-039x.2026.01.002

• 研究论文 • 上一篇

植物根系分泌物增效斯氏线虫对橘小实蝇幼虫的侵染

高扬^1,2, 付璇璇¹, 张媛¹, 沈杰¹, 闫硕¹, 王芳³, 赵紫华^1,2

1. 中国农业大学植物保护学院/农业农村部植物检疫性有害生物监测防控重点实验室, 北京 100193;
2. 中国农业大学三亚研究院, 三亚 572000;
3. 宁夏农林科学院植物保护研究所, 银川 750021

收稿日期:2025-09-03 发布日期:2026-08-26
通讯作者: 王芳，博士，副研究员，E-mail:wangfangwf80@163.com;赵紫华，博士，教授，E-mail:zhzhao@cau.edu.cn。
作者简介:高扬，硕士研究生，E-mail:1286501685@qq.com。
基金资助:
宁夏自然科学基金(2024AAC02064);宁夏重点研发计划项目(2025BBF01001)

Plant Root Exudates Enhance Steinernema feltiae Infection of Bactrocera dorsalis

GAO Yang^1,2, FU Xuanxuan¹, ZHANG Yuan¹, SHEN Jie¹, YAN Shuo¹, WANG Fang³, ZHAO Zihua^1,2

1. MARA Key Laboratory of Surveillance and Management for Plant Quarantine Pests/College of Plant Protection, China Agricultural University, Beijing 100193, China;
2. Sanya Research Institute, China Agricultural University, Sanya 572000, China;
3. Institute of Plant Protection, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan 750021, China

Received:2025-09-03 Published:2026-08-26

摘要/Abstract

摘要： 夜蛾斯氏线虫Steinernema feltiae是一种重要的生防线虫，侵染力强、杀虫谱广、安全性高。本论文探索了夜蛾斯氏线虫侵染橘小实蝇Bactrocera dorsalis幼虫的合适剂量和温度，并检验了植物根系次生代谢物质对夜蛾斯氏线虫侵染力的影响。试验结果表明，28℃时夜蛾斯氏线虫对橘小实蝇幼虫的侵染效率最高；线虫与橘小实蝇比例为30∶1时侵染率达到最佳；赖氨酸和乙醇胺可显著提高线虫对寄主的致死率；纳米材料SPc使幼虫死亡高峰提前24 h，但未改变最终死亡率。本文明确了夜蛾斯氏线虫侵染橘小实蝇幼虫的适宜条件及相关增效物质，为田间防控橘小实蝇提供了依据。

关键词: 橘小实蝇, 夜蛾斯氏线虫, 植物次生代谢物, 纳米材料

Abstract: Steinernema feltiae are important biocontrol nematodes with strong infectivity, a wide host range and high safety. This work explored the suitable concentration and temperature for S. feltiae to infect Bactrocera dorsalis larvae, and examined whether plant root secondary metabolites affect the infection rate of S. feltiae. The results showed that the infection efficiency of S. feltiae was the highest at 28℃, with the optimal infection efficiency achieving at a concentration of 30 nematodes per B. dorsalis larvae. Lysine and Ethanolamine could significantly enhance mortality rate of nematodes to hosts. It was found that SPc advanced the larval death peak by 24 hours without changing the final mortality rate. This study has clarified the suitable conditions for Steinernema to infect B. dorsalis larvae and the related synergistic substances, providing a basis for the use of S. feltiae in the field control of B. dorsalis.

Key words: Bactrocera dorsalis, Steinernema feltiae, plant secondary metabolites, nanomaterials

中图分类号:

S476

高扬, 付璇璇, 张媛, 沈杰, 闫硕, 王芳, 赵紫华. 植物根系分泌物增效斯氏线虫对橘小实蝇幼虫的侵染[J]. 中国生物防治学报, 2026, 42(4): 868-874.

GAO Yang, FU Xuanxuan, ZHANG Yuan, SHEN Jie, YAN Shuo, WANG Fang, ZHAO Zihua. Plant Root Exudates Enhance Steinernema feltiae Infection of Bactrocera dorsalis[J]. Chinese Journal of Biological Control, 2026, 42(4): 868-874.

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植物根系分泌物增效斯氏线虫对橘小实蝇幼虫的侵染

Plant Root Exudates Enhance Steinernema feltiae Infection of Bactrocera dorsalis

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