Thrip Infestation on Sweet Peppers in Fujian and<italic/> Pathogenicity of <i>Lecanicillium lecanii</i> against Dominant Species of Thrips

HUANG Peng; ZHANG Jie; CHEN Hanxin; LAN Yanyang; YAO Jinai; YU Deyi

doi:10.19303/j.issn.1008-0384.2022.004.012

Volume 37 Issue 4

Apr. 2022

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Article Navigation > Fujian Journal of Agricultural Sciences > 2022 > 37(4): 514-519

HUANG P, ZHANG J, CHEN H X, et al. Thrip Infestation on Sweet Peppers in Fujian and Pathogenicity of Lecanicillium lecanii against Dominant Species of Thrips [J]. Fujian Journal of Agricultural Sciences，2022，37（4）：514−519 doi: 10.19303/j.issn.1008-0384.2022.004.012

Citation:

HUANG P, ZHANG J, CHEN H X, et al. Thrip Infestation on Sweet Peppers in Fujian and Pathogenicity of Lecanicillium lecanii against Dominant Species of Thrips [J]. Fujian Journal of Agricultural Sciences，2022，37（4）：514−519 doi: 10.19303/j.issn.1008-0384.2022.004.012

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Thrip Infestation on Sweet Peppers in Fujian and Pathogenicity of Lecanicillium lecanii against Dominant Species of Thrips

doi: 10.19303/j.issn.1008-0384.2022.004.012

1.
Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests/Institute of Plant Protection, Fujian Academy of Agricultural Sciences/Fujian Engineering Research Center for Green Pest Management, Fuzhou, Fujian　350013, China
2.
Zhangzhou Institute of Agricultural Science, Zhangzhou, Fujian　363005, China
3.
Research and Development Centre of Zhangzhou National Agricultural Science and Technology Zone, Zhangzhou, Fujian　363204, China

Received Date: 2021-11-23
Rev Recd Date: 2021-12-17

Available Online: 2022-02-07

Publish Date: 2022-04-28

Abstract

Abstract

Objective Thrips infestation on sweet peppers in Fujian province was surveyed, and potential of using Lecanicillium lecanii as a means of biological control against the dominant species of thrips was explored. Methods Species and numbers of thrips that infested varieties of sweet peppers at vegetable farms in Zhangzhou, Fujian were surveyed. Pathogenicity of L. lecanii LL-01 on the dominant species of thrips was determined in laboratory. Results The total thrip populations on Lushuai and Bulanni sweet peppers were similar but significantly higher than that on Teyasi. The thrips found were largely Frankliniella intonsa, Thrips hawaiiensis, and T. palmi, and among them, F. intonsa being the most abundant, accounting for 91.31-94.93%. The LC₅₀ of L. lecanii LL-01 was 3.47×10⁵ conidia·mL⁻¹ on F. intonsa 7 d after an inoculated infection. The cumulative lethality was 78.16-87.36% under treatments of 1×10⁷ to 1×10⁸ conidia·mL⁻¹ to reach an LT₅₀ in 3.73-4.24 d. Conclusion Thrips had varied preferred host plants.F. intonsa was the dominant species that infested the sweet pepper varieties in the province. Since L. lecanii LL-01 was found strongly pathogenic to F. intonsa, it could be applied as a biological agent to deter wide-spread infestation.
- Thrips,
- sweet pepper,
- host preference,
- dominant species,
- Lecanicillium lecanii,
- pathogenicity

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References(15)

References

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