How to Use pyrethrin in a Sentence
pyrethrin
noun-
Flea and tick prevention for dogs contains chemicals such as pyrethrin, which are toxic to cats.
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Jessie Quinn,
USA Today,
10 May 2026
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Botanical alternatives such as neem and pyrethrins in canola oil provide three to four days of deterrence.
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Arricca Elin Sansone,
Southern Living,
6 Oct. 2025
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Botanical alternatives such as neem and pyrethrins in canola oil provide three to four days of deterrence.
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Arricca Elin Sansone,
Southern Living,
1 Mar. 2026
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He was covered from neck to boots in fabrics soaked with permethrin—a pesticide modelled on the toxic pyrethrin found in chrysanthemum flowers.
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Burkhard Bilger,
New Yorker,
29 June 2026
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Spinosad, although organically certified, can be toxic to bees, and pyrethrins—derived from plants—can affect a wide range of insects.
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Anthony Reardon,
Kansas City Star,
4 Apr. 2026
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Often cited in grub control lists, Williams explains that this classic flower contains potent insecticidal pyrethrins in its flower heads.
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Sj McShane,
Martha Stewart,
18 Apr. 2026
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Systemic Insecticide Insecticide sprays that contain bifenthrin, cyfluthrin, lambda cyhalothrin, malathion, permethrin, or pyrethrin will control aphids.
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Mary Marlowe Leverette,
Southern Living,
20 May 2026
Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'pyrethrin.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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