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Efficacies of fifteen insecticides against Spodoptera litura (Fabricius) and Spodoptera exigua (Hübner) in Nara Prefecture

Year: 2026

Type: article

Abstract: The efficacies of 15 insecticides at commercial concentrations were evaluated against Spodoptera litura (Fabricius) and Spodoptera exigua (Hübner) populations collected from production fields in Nara Prefecture, Japan during 2023–2025. For S. litura, spinetoram, lepimectin, chlorfenapyr, metaflumizone, indoxacarb, fluxametamide, broflanilide, and pyridalyl showed high efficacy 2–3 days after treatment. Methoxyfenozide was effective 5–8 days after treatment. For S. exigua, spinosad, spinetoram, chlorfenapyr, fluxametamide and broflanilide showed high efficacy 3 days after treatment, whereas methoxyfenozide was effective 5–8 days after treatment. In conclusion, several insecticides were found to have low efficacy against S. litura and S. exigua, but spinetoram, chlorfenapyr, methoxyfenozide, fluxametamide, and broflanilide were effective.

Source: Annual Report of The Kansai Plant Protection Society

DOI: 10.4165/kapps.68.99

Authors: Sota Fujimori, Takeo Imura, Isao Takenaka, Kwihwa Sen

Language: English

Topic: Insect Resistance and Genetics

Subfield: Molecular Biology

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

SDG: Zero hunger

Open Access status: diamond

OpenAlex ID: W7162942418

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