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June 20, 2026International Journal of AgronomyOpen Access

Efficacy of Crude Extracts and Essential Oils of Selected Plants for the Management of Fall Armyworm ( Spodoptera frugiperda ) in Kenya

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Authors

CMCatherine K. MumoPMP. W. MuturiBGBernard M. Gichimu

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Overview

Randomized trial assesses plant extracts and essential oils' effectiveness for controlling fall armyworm, suggesting sustainable pest management options.

Key Points

  • This study aims to evaluate the effectiveness of various plant extracts and essential oils in controlling the fall armyworm in maize production in Kenya.
  • Field trials were conducted over two cropping seasons to assess the efficacy of crude extracts and essential oils from garlic, red hot pepper, Sodom apple, and Mexican sunflower.
  • Pest dynamics were measured using the area under damage/pest curve (AUDPC), with synthetic pesticide and sterile distilled water as controls.
  • Laboratory bioassays were performed to evaluate larval mortality against FAW third-instar larvae.
  • The negative control exhibited the highest pest incidence (AUDPC of 180–202), while the synthetic pesticide showed the lowest (AUDPC of 46–49).
  • Crude extracts significantly reduced FAW infestation, with garlic and red hot pepper oils achieving 100% larval mortality within 48 hours.
  • Mexican sunflower was less effective compared to other plant extracts.

Cite This Study

Mumo et al. (2026) studied this question.

synapsesocial.com/papers/6a363040db0793dc1a5376fdhttps://doi.org/10.1155/ioa/9923383
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