Work

Efficacy of Metarhizium rileyi and Beauveria bassiana as Biocontrol Agents against Third-Instar Spodoptera frugiperda under Laboratory Conditions

Year: 2024

Type: article

Abstract: Managing the Fall Armyworm, Spodoptera frugiperda (J. E. Smith), a significant pest affecting maize, has become challenging due to widespread restrictions on synthetic pesticide use and the emergence of insecticide-resistant populations. As a sustainable alternative, entomopathogenic fungi have shown promise as biological control agents against S. frugiperda. In this study, commercial formulations of two fungal biocontrol agents, Metarhizium rileyi (Mr-18 strain) and Beauveria bassiana (Bb-52 strain), were assessed against third-instar larvae of S. frugiperda under laboratory conditions. Results showed that both M. rileyi and B. bassiana were similarly effective, with M. rileyi exhibiting a slightly lower LC50 value (1.648 x 10⁵ ppm) compared to B. bassiana (2.203 x 10⁵ ppm), particularly in populations from Telangana. These results highlight the potential of using effective strains of B. bassiana and M. rileyi at a concentration of 1 x 10⁵ conidia/ml as viable biocontrol strategies against S. frugiperda.

Source: UTTAR PRADESH JOURNAL OF ZOOLOGY

DOI: 10.56557/upjoz/2024/v45i244708

Authors: G Yashaswini, S Upendhar, K Vani Sree, S Triveni, S Vanisri

Institution: Professor Jayashankar Telangana Agricultural University

Language: English

Topic: Entomopathogenic Microorganisms in Pest Control

Subfield: Insect Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: diamond

OpenAlex ID: W4405853429

FWCI:

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