英语词汇“pyrethrin”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

Example Sentences

Recent Examples on the Web For aphids, hose off as many as possible and then use either Mosquito Bits (a Baccillus product that nurseries sell) or spray plants with any product containing pyrethrin.

Earl Nickel, San Francisco Chronicle, 1 Apr. 2022 The team also used chemical analysis to determine how two of pyrethrum’s molecular components—EBF and pyrethrin—elicit the repellent response.

Rachel Nuwer, Scientific American, 19 July 2021 Adults can be controlled with malathion, carbaryl (Sevin) and pyrethrin.

From Usa Today Network And Wire Reports, USA TODAY, 29 June 2021 These mosquito repellents rely on a pyrethrin as the active ingredient.

Outdoor Life Staff, Outdoor Life, 11 Jan. 2021 People who have known sensitivities to pyrethrin can reduce potential for exposure by staying indoors during treatment.

Kristen Jordan Shamus, Detroit Free Press, 17 Sep. 2020 Acephate and pyrethrins are high toxicity to bees and horticultural oils are moderately toxic to bees.

oregonlive, 20 Oct. 2019 For pubic lice, lice-killing lotions that contain active ingredients called permethrin, pyrethrins, or piperonyl butoxide, can be applied to the area.

Sarah Bradley, Health.com, 24 Oct. 2019 Aphids, though more nuisance than major threat, can be treated with one of many sprays that have pyrethrin as a active ingredient.

Earl Nickel, SFChronicle.com, 20 Sep. 2019 See More

单词	pyrethrin
释义	pyrethrin noun py·re·thrin pī-ˈrē-thrən -ˈre- : either of two oily liquid esters C₂₁H₂₈O₃ and C₂₂H₂₈O₅ having insecticidal properties and occurring especially in the flowers of pyrethrum Example Sentences Recent Examples on the Web For aphids, hose off as many as possible and then use either Mosquito Bits (a Baccillus product that nurseries sell) or spray plants with any product containing pyrethrin. Earl Nickel, San Francisco Chronicle, 1 Apr. 2022 The team also used chemical analysis to determine how two of pyrethrum’s molecular components—EBF and pyrethrin—elicit the repellent response. Rachel Nuwer, Scientific American, 19 July 2021 Adults can be controlled with malathion, carbaryl (Sevin) and pyrethrin. From Usa Today Network And Wire Reports, USA TODAY, 29 June 2021 These mosquito repellents rely on a pyrethrin as the active ingredient. Outdoor Life Staff, Outdoor Life, 11 Jan. 2021 People who have known sensitivities to pyrethrin can reduce potential for exposure by staying indoors during treatment. Kristen Jordan Shamus, Detroit Free Press, 17 Sep. 2020 Acephate and pyrethrins are high toxicity to bees and horticultural oils are moderately toxic to bees. oregonlive, 20 Oct. 2019 For pubic lice, lice-killing lotions that contain active ingredients called permethrin, pyrethrins, or piperonyl butoxide, can be applied to the area. Sarah Bradley, Health.com, 24 Oct. 2019 Aphids, though more nuisance than major threat, can be treated with one of many sprays that have pyrethrin as a active ingredient. Earl Nickel, SFChronicle.com, 20 Sep. 2019 See More Word History Etymology International Scientific Vocabulary, from Latin pyrethrum First Known Use 1882, in the meaning defined above Medical Definition pyrethrin noun py·re·thrin pī-ˈrē-thrən -ˈreth-rən : either of two oily liquid esters C₂₁H₂₈O₃ and C₂₂H₂₈O₅ that have insecticidal properties and are the active components of pyrethrum
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pyrethrin

noun

Example Sentences

Word History

Medical Definition

noun