insecticidal

adjective

in·​sec·​ti·​cid·​al (ˌ)in-ˌsek-tə-ˈsī-dᵊl How to pronounce insecticidal (audio)
1
: destroying or controlling insects
2
: of or relating to an insecticide
insecticidally adverb

Examples of insecticidal in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Severe outbreaks can be managed using insecticidal oils or soaps. Kim Toscano, Southern Living, 11 June 2026 Bt, insecticidal soap, and neem oil are derived from natural materials and can be used on specific pests. Leanne Potts, Better Homes & Gardens, 11 June 2026 Regularly monitor the plants for beetles and use methods such as hand-picking or insecticidal soap to control them. Sj McShane, Martha Stewart, 11 June 2026 Control aphids feeding in new shoots with an insecticidal soap spray. Tom MacCubbin, The Orlando Sentinel, 25 Apr. 2026 See All Example Sentences for insecticidal

Word History

First Known Use

1857, in the meaning defined at sense 1

Time Traveler
The first known use of insecticidal was in 1857

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Cite this Entry

“Insecticidal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/insecticidal. Accessed 21 Jun. 2026.

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