in·​sec·​ti·​cid·​al | \ (ˌ)in-ˌsek-tə-ˈsī-dᵊl How to pronounce insecticidal (audio) \

Definition of insecticidal

1 : destroying or controlling insects
2 : of or relating to an insecticide

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Other Words from insecticidal

insecticidally \ (ˌ)in-​ˌsek-​tə-​ˈsī-​dᵊl-​ē How to pronounce insecticidal (audio) \ adverb

Examples of insecticidal in a Sentence

Recent Examples on the Web Tunnels which have already been excavated are best treated by puffing an insecticidal dust into the hole. Tim Johnson,, 30 May 2021 Should the populations continue to build on your boxwood in subsequent years, try using a low-impact option, such as an insecticidal soap or summer horticultural oil applied just when new growth begins. Tim Johnson,, 13 June 2021 Control aphids on vegetables as needed by hosing off with water or by using insecticidal soap or a registered insecticide. oregonlive, 1 June 2021 This essential oil contains two constituents which have insecticidal activity and have proven to kill lice and nits. Kaitlyn Pirie, Good Housekeeping, 27 Aug. 2020 Read and follow label directions when using insecticides, including insecticidal soap. oregonlive, 4 May 2021 Products with essential oils, including NEEM and various insecticidal soaps, are also in Akin’s bug-busting bag of tricks. Chris M. Worrell, cleveland, 25 Apr. 2021 Monitor strawberries for spittlebugs and aphids; if present, wash off with water or use insecticidal soap as a contact spray. oregonlive, 7 Apr. 2021 Some gardeners wash them off the plants and others apply an insecticidal soap, following label instructions. Tom Maccubbin,, 20 Mar. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'insecticidal.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of insecticidal

1857, in the meaning defined at sense 1

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Time Traveler for insecticidal

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The first known use of insecticidal was in 1857

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Last Updated

28 Jun 2021

Cite this Entry

“Insecticidal.” Dictionary, Merriam-Webster, Accessed 1 Aug. 2021.

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