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 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 Make sure your plants are receiving enough water, and treat serious pest problems with neem oil or insecticidal soap. Brandee Gruener, Southern Living, 17 June 2025 Controls can include application of natural insecticides including horticulture oils and insecticidal soaps. Tom MacCubbin, The Orlando Sentinel, 14 June 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 23 Jul. 2025.

Last Updated: - Updated example sentences
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