Association between insecticide use and greenhouse whitefly (Trialeurodes vaporariorum westwood) resistance to insecticides in hawaii

Amir D. Omer; Marshall W. Johnson; Bruce E. Tabashnik; Diane E. Ullman

doi:10.1002/ps.2780370304

Association between insecticide use and greenhouse whitefly (Trialeurodes vaporariorum westwood) resistance to insecticides in hawaii

Amir D. Omer, Marshall W. Johnson, Bruce E. Tabashnik, Diane E. Ullman

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

Susceptibility to acephate, methomyl, and permethrin was determined with laboratory bioassays for adults of greenhouse whitefly, Trialeurodes vaporariorum Westwood, from 12 to 14 sites in Hawaii. Comparisons at LC₅₀ showed up to 42‐fold resistance to acephate, 36‐fold resistance to methomyl, and 8‐fold resistance to permethrin. Higher levels of resistance to acephate and methomyl than to permethrin are consistent with greater use of organophosphates and carbamates than pyrethroids by growers. Insecticide use varied from 1 to 98 insecticide sprays per site per season. Significant positive associations between LC₅₀ for each insecticide and frequency of application of the same insecticide were found across sites. This finding suggests that local variation in insecticide use was an important cause of variation in susceptibility.

Original language	English (US)
Pages (from-to)	253-259
Number of pages	7
Journal	Pesticide Science
Volume	37
Issue number	3
DOIs	https://doi.org/10.1002/ps.2780370304
State	Published - 1993

ASJC Scopus subject areas

Applied Microbiology and Biotechnology

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abstract = "Susceptibility to acephate, methomyl, and permethrin was determined with laboratory bioassays for adults of greenhouse whitefly, Trialeurodes vaporariorum Westwood, from 12 to 14 sites in Hawaii. Comparisons at LC50 showed up to 42‐fold resistance to acephate, 36‐fold resistance to methomyl, and 8‐fold resistance to permethrin. Higher levels of resistance to acephate and methomyl than to permethrin are consistent with greater use of organophosphates and carbamates than pyrethroids by growers. Insecticide use varied from 1 to 98 insecticide sprays per site per season. Significant positive associations between LC50 for each insecticide and frequency of application of the same insecticide were found across sites. This finding suggests that local variation in insecticide use was an important cause of variation in susceptibility.",

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AU - Omer, Amir D.

AU - Johnson, Marshall W.

AU - Tabashnik, Bruce E.

AU - Ullman, Diane E.

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AB - Susceptibility to acephate, methomyl, and permethrin was determined with laboratory bioassays for adults of greenhouse whitefly, Trialeurodes vaporariorum Westwood, from 12 to 14 sites in Hawaii. Comparisons at LC50 showed up to 42‐fold resistance to acephate, 36‐fold resistance to methomyl, and 8‐fold resistance to permethrin. Higher levels of resistance to acephate and methomyl than to permethrin are consistent with greater use of organophosphates and carbamates than pyrethroids by growers. Insecticide use varied from 1 to 98 insecticide sprays per site per season. Significant positive associations between LC50 for each insecticide and frequency of application of the same insecticide were found across sites. This finding suggests that local variation in insecticide use was an important cause of variation in susceptibility.

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Association between insecticide use and greenhouse whitefly (Trialeurodes vaporariorum westwood) resistance to insecticides in hawaii

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