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Chinese Journal of Biological Control ›› 2020, Vol. 36 ›› Issue (6): 858-861.DOI: 10.16409/j.cnki.2095-039x.2020.06.017


Research and Development of Wettable Powder of Beauveria bassiana and Its Control and Application to Frankliniella occidentalis

WANG Haihong1, LIU Sheng1, WANG Shuaiyu2, LEI Zhongren1   

  1. 1. State Key Laboratory for Plant Diseases and Insect Pests/Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
    2. Beijing Plant Protection Station, Beijing 100029, China
  • Received:2020-11-18 Published:2021-01-09

Abstract: In order to develop an insecticide of Beauveria bassiana against Western Flower Thrips (WFT), Frankliniella occidentalis, firstly, fungal strains with high efficiency to WFT were selected by screening, purification and rejuvenation; secondly, the liquid-solid two-phase fermentation conditions and fermentation process were optimized; thirdly, the product formulation and formula were improved; fourthly, environment and toxicity assessment of the product were evaluated. The results showed that all the indicators of the product were in line with national standards. The 15 billion conidia/g B. bassiana wettable powder was approved and registered in China in 2018. The control efficacies of spraying 1800―3000 g/ha on thrips on pepper are above 74%. The recommended dosage is 2400 g/ha. The development and registration of the product have laid a solid foundation for the biological control of WFT.

Key words: Beauveria bassiana, wettable powder, Frankliniella occidentalis

CLC Number: