中国农业科学 ›› 2026, Vol. 59 ›› Issue (12): 2637-2655.doi: 10.3864/j.issn.0578-1752.2026.12.008

• 植物保护 • 上一篇    下一篇

球孢白僵菌与食诱剂联合应用对番茄上烟粉虱的防治研究

王萌涵1(), 王登杰2, 梁兴慧3, 王恩东1, 张博1, 王海鸿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 绵阳市农业科学研究院, 四川绵阳 621000
    3 北京依科曼生物技术股份有限公司, 北京 100089
  • 收稿日期:2026-02-13 接受日期:2026-04-14 出版日期:2026-06-16 发布日期:2026-06-16
  • 通信作者:
    王海鸿,E-mail:
  • 联系方式: 王萌涵,E-mail:wangmeha1110@163.com。
  • 基金资助:
    国家重点研发计划(2022YFD1401203)

Control of Bemisia tabaci on Tomato by the Combined Application of Beauveria bassiana and Food Attractants

WANG MengHan1(), WANG DengJie2, LIANG XingHui3, WANG EnDong1, ZHANG Bo1, WANG HaiHong1()   

  1. 1 Institute of Plant Protection, Chinese Academy of Agricultural Sciences/State Key Laboratory for Biology of Plant Diseases and Insect Pests, Beijing 100193
    2 Mianyang Academy of Agricultural Sciences, Mianyang 621000, Sichuan
    3 Beijing Ecoman Biotech Co., Ltd, Beijing 100089
  • Received:2026-02-13 Accepted:2026-04-14 Published:2026-06-16 Online:2026-06-16

摘要:

【目的】在室内与田间条件下系统评估球孢白僵菌(Beauveria bassiana)对烟粉虱(Bemisia tabaci)的致病力、食诱剂对烟粉虱的引诱率,以及两者联合应用对烟粉虱的综合防治效果,筛选高致病力球孢白僵菌菌株与高效食诱剂配方。【方法】室内条件下,采用浸叶法和接触法分别测定球孢白僵菌菌株对烟粉虱若虫和成虫的致病力,并采用血球计数板法测定各菌株产孢量。利用Y型管趋性装置分析烟粉虱对植物源挥发物的趋性;并通过组分、配比、浓度、溶剂和缓释载体试验确定复合食诱剂的最优配方。在田间构建球孢白僵菌-食诱剂联合装置,验证装置悬挂位置和密度对烟粉虱诱集效果的影响;通过室内笼罩试验和田间调查测定烟粉虱孢子携带量及种群的动态变化。【结果】在1×108孢子/mL浓度条件下,XJWLMQ-1菌株对烟粉虱2龄若虫和成虫的校正死亡率分别为93.16%和79.17%,致死中时(LT50)分别为3.78和7.12 d;在产孢培养基上产孢量达3.74×108孢子/cm2。顺-3-己烯醛、芳樟醇和丁香酚按1﹕2﹕1比例组合形成的复合食诱剂诱集效果最佳,引诱率达90.0%。液体石蜡与正己烷混合溶剂、配合多孔硅胶棒作为缓释载体,表现出良好的持效性,在84 d时仍维持60.0%的引诱率;食诱剂装置悬挂于植株顶端位置诱捕数量显著高于中部及顶部以上20 cm处。笼罩试验表明,烟粉虱可通过接触联合应用装置获取并携带(1.50—4.34)×104孢子/头。在14 d内,虫体孢子携带量随暴露时间延长持续增加,在第14天达到峰值,为1.40×105孢子/头。连续两年田间试验显示,处理组的烟粉虱成虫峰值分别为16.40和15.60头/叶,较对照组分别下降36.3%和37.6%(P<0.05)。【结论】筛选出对烟粉虱若虫和成虫均具高致病力且产孢量高的球孢白僵菌XJWLMQ-1菌株,复配出对烟粉虱引诱率显著的食诱剂配方(顺-3-己烯醛﹕芳樟醇﹕丁香酚为1﹕2﹕1),球孢白僵菌和食诱剂联合应用对烟粉虱具有良好的防控效果,可持续抑制烟粉虱种群增长,具备推广应用潜力。

关键词: 球孢白僵菌, 食诱剂, 烟粉虱, 综合防治

Abstract:

【Objective】The objective of this study was to systematically evaluate the pathogenicity of Beauveria bassiana to Bemisia tabaci, the attraction rate of food-based attractants to B. tabaci, and the synergistic efficacy of their combination against B. tabaci under both laboratory and field conditions, and to screen the highly pathogenic B. bassiana strains and optimized attractant formulations for effective whitefly control.【Method】Under controlled laboratory conditions, the pathogenicity of multiple B. bassiana strains against nymphal and adult stages of B. tabaci was assessed using leaf-dip and contact bioassays, respectively. Conidial production per unit area was quantified microscopically using a hemocytometer. Behavioral responses of B. tabaci to plant-derived volatile organic compounds (VOCs) were evaluated in a Y-tube olfactometer assay. An optimized food-based attractant formulation was developed through systematic screening of active components, empirical optimization of component ratios and concentrations, evaluation of solvent compatibility, and assessment of slow-release carrier efficacy. A prototype dual-function device—integrating the selected B. bassiana strain with the optimized attractant—was designed for field deployment. The influence of device hanging height and inter-unit spacing on whitefly attractive effect was rigorously tested under semi-field and field conditions. Finally, conidial acquisition by B. tabaci individuals and subsequent population-level impacts were quantified via standardized cage experiments and longitudinal field monitoring.【Result】At a concentration of 1×108 conidia/mL, strain XJWLMQ-1 caused corrected mortalities of 93.16% and 79.17% against second-instar nymphs and adults of B. tabaci, respectively, with LT50 values of 3.78 and 7.12 d. The conidial production of this strain reached 3.74×108 conidia/cm2 on sporulation medium. A compound attractant consisting of (Z)-3-hexenal, linalool, and eugenol at a ratio of 1﹕2﹕1 showed the highest attraction rate (90.0%). A mixed solvent of liquid paraffin and n-hexane combined with a porous silica gel rod as a slow-release carrier exhibited good persistence, maintaining an attraction rate of 60.0% after 84 d. Devices suspended at the top of tomato plants attracted significantly more whiteflies than those placed at the middle of plants or 20 cm above the canopy. Cage experiments showed that B. tabaci could acquire and carry (1.50-4.34) ×104 conidia per adult through contact with the combined application device. Conidial loads carried by adults increased with exposure time and reached a peak of 1.40×105 conidia per adult after 14 d. Two years of field trials demonstrated that the peak densities of B. tabaci adult in the treatment plots were 16.40 and 15.60 individuals per leaf, representing reductions of 36.3% and 37.6%, respectively, compared with the control (P<0.05).【Conclusion】A highly pathogenic B. bassiana strain XJWLMQ-1 against both nymphs and adults of B. tabaci was screened, and an efficient food attractant formulation consisting of (Z)-3-hexenal, linalool, and eugenol at a ratio of 1﹕2﹕1 was developed. The combined application of B. bassiana and the attractant effectively suppressed B. tabaci populations and showed strong potential for sustainable field application.

Key words: Beauveria bassiana, food attractant, Bemisia tabaci, combined control