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中国生物防治学报 ›› 2025, Vol. 41 ›› Issue (3): 702-709.DOI: 10.16409/j.cnki.2095-039x.2024.11.012

• 研究论文 • 上一篇    

烟粉虱种群密度对番茄黄化曲叶病毒传播的影响及其高效生防真菌的筛选

房文娇1,2, 王子凡3, 郝心雨4, 贾红卫3, 王晓玲5, 刘廷辉4, 涂雄兵1, 冯士骞1, 师建华3, 王广君1   

  1. 1. 中国农业科学院植物保护研究所/植物病虫害综合治理全国重点实验室, 北京 100193;
    2. 新疆农业大学农学院, 乌鲁木齐 830052;
    3. 石家庄市农林科学研究院, 石家庄 050000;
    4. 河北农业大学植物保护学院, 保定 071000;
    5. 锡林郭勒盟农牧技术推广中心, 锡林浩特 026000
  • 收稿日期:2024-03-21 发布日期:2025-06-20
  • 通讯作者: 师建华, 王广君
  • 作者简介:房文娇,硕士研究生,E-mail: fangwenjiaoan@163.com;通信作者,王广君,副研究员,E-mail: wangguangjun@caas.cn;师建华,研究员,E-mail: 13785101151@163.com。
  • 基金资助:
    石家庄市农业科技项目(23004);石家庄市科技项目(248790066A)

Effect of Bemisia tabaci Population Density on Spreading of Tomato Yellow Leaf Curl Virus and Screening of High-efficiency Insecticidal Fungus

FANG Wenjiao1,2, WANG Zifan3, HAO Xinyu4, JIA Hongwei3, WANG Xiaoling5, LIU Tinghui4, TU Xiongbing1, FENG Shiqian1, SHI Jianhua3, WANG Guangjun1   

  1. 1. State Key Laboratory for Biology of Plant Diseases and Insect Pests/Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
    2. College of Agriculture, Xinjiang Agricultural University, Urumqi 830052, China;
    3. Shijiazhuang Academy of Agricultural and Forestry Sciences, Shijiazhuang 050041, China;
    4. College of Plant Protection, Hebei Agricultural University, Baoding 071000, China;
    5. Xilingol League Agricultural and Animal Husbandry Technology Extension Center, Xilinhot 026000, China
  • Received:2024-03-21 Published:2025-06-20

摘要: 烟粉虱Bemisia tabaci是番茄黄化曲叶病毒(tomato yellow leaf curl virus,TYLCV)的唯一媒介昆虫,可传播TYLCV,严重影响番茄的产量和品质。为探明烟粉虱种群密度与TYLCV发生的相关性,筛选对烟粉虱高效的生防真菌菌株,更好地控制TYLCV的发生,本研究采用实时荧光定量PCR技术,研究了不同种群密度的烟粉虱对TYLCV传播的影响;并通过室内生测及大田药效试验测定了12株真菌菌株对烟粉虱的控制效果。结果表明,烟粉虱接种9 d后,番茄植株中TYLCV相对含量与烟粉虱的种群密度符合逻辑斯蒂曲线,相关性较高(r2= 0.9558);当密度大于400头时(148头/m3),病毒基因表达量迅速增加;对12株虫生真菌进行室内生测,发现球孢白僵菌IPPBKN001对烟粉虱的控制效果最好;处理5 d后,校正死亡率高达81.11%;田间药效结果显示,IPPBKN001施药5 d后烟粉虱校正防效76.36%,具有较好的防治效果。本研究初步明确了烟粉虱种群密度与番茄黄化曲叶病毒病之间的相关性,并获得了对烟粉虱高效的生防菌株,为番茄病毒病绿色防控提供了菌种资源。

关键词: 烟粉虱, 番茄黄化曲叶病毒, 种群密度, 杀虫真菌

Abstract: Bemisia tabaci is the only vector of tomato yellow leaf curl virus (TYLCV), which can cause plant growth retardation or stagnation and affect the yield and quality of tomato seriously. In order to find out the correlation between population density of B. tabaci and the degree of TYLCV occurrence and obtain a high-efficiency insecticidal fungus strain against B. tabaci so as to control the TYLCV effectively, the effects of different population densities of B. tabaci on the transmission of TYLCV were studied by real-time fluorescent quantitative PCR technology. The control efficiency of different fungal strains on B. tabaci were tested by laboratory bioassay and field trail. The results showed that the relationship between relative content of TYLCV in tomato plants infested with B. tabachi for 9 days and the population density of B. tabaciis fitted well with the logistic curve model (R2= 0.9558). When the density of B. tabaci was higher than 400 (148/m3), the expression of virus gene in tomato increased rapidly. The 12 entomopathogenic fungi strains were tested in laboratory for their control of B. tabaci, which showed that Beauveria bassiana IPPBKN001 had the best control after 5 days of treatment, with corrected mortality of81.11%. The results of field trail showed that the control efficiency of IPPBKN001 was over 76.36% at 5 d post application. In this study, the tomato yellow leaf curve virus disease is closely correlated to the population density of B. tabaci and an efficient B. bassiana strain against B. tabaci is obtained, which provides the microbial resources for the control of tomato virus disease.

Key words: Bemisia tabaci, tomato yellow leaf curl virus, population density, entomopathogenic fungi

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