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Chinese Journal of Biological Control ›› 2021, Vol. 37 ›› Issue (2): 380-384.DOI: 10.16409/j.cnki.2095-039x.2021.03.031


The Control Efficacy of Two Fungal Strains against Locusts of Grassland in Yulin, Shaanxi

LIU Haiyang1,2, LIU Long1, LIU Xinyu2, WANG Dun1   

  1. 1. State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling 712100, China;
    2. Yulin Grassland Station, Yulin 718500, China
  • Received:2019-11-25 Published:2021-04-14

Abstract: The virulence of two fungal strains, Beauveria bassiana GYS-13 and Metarhizium anisopliae QL-107, were evaluated in the laboratory and the two strains were tested as biocontrol agents for grassland locusts in Yulin. The bioassay showed strong virulence of both strains against Locusta migratoria manilensis under laboratory conditions. And the field control tests at the mountain grassland indicated that the two strains afforded over 75% control against the locusts complex including pests of different species and ages. Especially, the B. bassiana GYS-13 reached a control of 81.8% against all the locusts in mountain slopes. These findings indicate potential of the fungal strains B. bassiana GYS-13 and Metarhizium anisopliae QL-107 to be developed as bio-pesticides against the locusts.

Key words: Yulin grassland, locusts, Beauveria bassiana, Metarhizium anisopliae, biocontrol

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