insecticide

noun

in·​sec·​ti·​cide in-ˈsek-tə-ˌsīd How to pronounce insecticide (audio)
plural insecticides
: an agent that destroys one or more species of insects
broadly : an agent that destroys insects as well as other small pests (such as mites or nematodes)
Aphids, mealybugs, and cyclamen mites are all common problems and can be controlled with any low-toxicity insecticide sold specifically for houseplants. Horticulture

Examples of insecticide in a Sentence

Recent Examples on the Web This can be done by using a systemic insecticide through a soil drench. Chris McKeown, The Enquirer, 16 Mar. 2024 Use insecticides with care: In severe infestations, insecticides labeled for crane fly control can be used. The Arizona Republic, 12 Mar. 2024 However, if 20% of agricultural land held organic crops — as the California Air Resources Board envisions — total insecticide use fell by 17%. Karen Kaplan, Los Angeles Times, 21 Mar. 2024 For more stubborn infestations, using insecticides or professional pest control services may be necessary. Jake Parks, Discover Magazine, 13 Feb. 2024 If trying an insecticide for stubborn outbreaks, consider horticultural oil, insecticidal soap, or the active ingredient spinosad. Miri Talabac, Baltimore Sun, 1 Feb. 2024 Try using an insecticide rinse to wash away the residue left behind. Steve Bender, Southern Living, 25 Jan. 2024 The insecticide is mixed with water in a watering can or bucket. Chris McKeown, The Enquirer, 16 Mar. 2024 The most common forms of management are insecticides and sticky bands, a strip of tacky material wrapped around a tree trunk to trap pests. Catherine Duncan, Smithsonian Magazine, 8 Mar. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'insecticide.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

International Scientific Vocabulary

First Known Use

1865, in the meaning defined above

Time Traveler
The first known use of insecticide was in 1865

Dictionary Entries Near insecticide

Cite this Entry

“Insecticide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/insecticide. Accessed 23 Apr. 2024.

Kids Definition

insecticide

noun
in·​sec·​ti·​cide in-ˈsek-tə-ˌsīd How to pronounce insecticide (audio)
: a chemical used to kill insects
insecticidal
(ˌ)in-ˌsek-tə-ˈsīd-ᵊl
adjective

Medical Definition

insecticide

noun
in·​sec·​ti·​cide in-ˈsek-tə-ˌsīd How to pronounce insecticide (audio)
: an agent that destroys insects
insecticidal adjective
Last Updated: - Updated example sentences
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