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Chinese Journal of Biological Control ›› 2025, Vol. 41 ›› Issue (3): 691-701.DOI: 10.16409/j.cnki.2095-039x.2024.07.018

• RESEARCH REPORTS • Previous Articles    

The Effect of Endophytic Colonization of Cowpeas by Beauveria bassiana on Liriomyza sativae

ZHONG Shaoyi1, LIANG Xinghui2, WANG Dengjie3, LI Guiying4, ZHANG Zhike5, WANG Haihong1, LEI Zhongren1, WU Shengyong1,6, GAO Yulin1   

  1. 1. Institute of Plant Protection, Chinese Academy of Agricultural Science, Beijing 100091, China;
    2. Beijing Ecoman Biotech Co., Ltd., Beijing 100085, China;
    3. Mianyang Academy of Agricultural Sciences, Mianyang 621023, China;
    4. Hohhot Agricultural and Animal Husbandry Technology Extension Center, Hohhot 010010, China;
    5. Plant Protection Research Institute of Ningxia Academy of Agricultural and Forestry Science, Yinchuan 750002, China;
    6. Sanya National Academy of Southern Propagation, Chinese Academy of Agricultural Sciences, Sanya 572024, China
  • Received:2024-04-25 Published:2025-06-20

Abstract: This study aimed to elucidate the control of Liriomyza sativae by Beauveria bassiana on cowpea Vigna unguiculata. With B. bassiana-colonized cowpea and non-colonized cowpea (the control) as the host plants, the growth, development, reproduction, and population parameters of L. sativae were measured. In addition, the population dynamics of L. sativae was compared between B. bassian-colonized cowpea and control cowpea in a field test. The results of laboratory experiments showed significant differences in the development period, survival rate, and reproductive rate of L. sativae. Specifically, the egg period of L. sativae on B. bassian-colonized cowpea was significantly prolonged, although there was no significant difference in the total larval and pupal periods between the two groups. The pupal weight of L. sativae in B. bassian-colonized group (0.43 g/1000 pupae) was significantly lower than that in the control (0.49 g/1000 pupae). The probability of survival from the pre-adult stage to the adult stage in B. bassian-colonized group (29.88%) was significantly lower than that in the control (83.33%). The lifespans of female (3.92 days) and male (3.69 days) adults, as well as the total egg production (71.96), in the treatment group were significantly lower than those in the control group (female: 7.48 days; male: 6.23 days; total egg production: 140.92). The intrinsic growth rate (r) (0.1385/day), finite growth rate (λ) (1.1486/day), and net reproductive rate (R0) (10.3222) in the treatment group were lower than those in the control group (r: 0.2448/day; λ: 1.2774/day; R0: 62.6333). Field experiment results showed that the population size of L. sativae in B. bassian-colonized group was consistently lower than that in the control group throughout the investigation period. In summary, compared with the control, the population of L. sativae feeding on cowpea plants with endophytic colonization of B. bassiana is significantly suppressed, indicating the feasibility of using B. bassiana as an endophytic fungus for controlling L. sativae on cowpea.

Key words: Liriomyza sativae, Beauveria bassiana, Vigna unguiculata, endophytic colonization, population

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