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.
Spray stink bugs with a 50-50 mixture of water and dish soap or insecticidal soap to kill them immediately. Arricca Elin Sansone, Southern Living, 19 July 2025 To get rid of them, repot the plant, disturb the soil, soak the pot, or use insecticidal soap. Anne Readel, Better Homes & Gardens, 18 July 2025 Spray plants with neem oil, spinosad, or insecticidal soap, though these products must contact the beetles to work. Arricca Elin Sansone, Southern Living, 11 July 2025 Control may be obtained with a horticultural oil spray or insecticidal soap. Tom MacCubbin, The Orlando Sentinel, 5 July 2025 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 29 Jul. 2025.

Last Updated: - Updated example sentences
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