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

Keep scrolling for more

Other Words from insecticidal

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

Examples of insecticidal in a Sentence

Recent Examples on the Web Another key is to limit insecticidal spraying to a specific target such as stink bugs on your peaches or cabbage loopers on your broccoli. Calvin Finch,, "Calvin Finch: How to attract butterflies to your San Antonio garden all year long," 21 May 2020 If control is necessary, try using horticultural oils or insecticidal soaps that are safe for natural predators. oregonlive, "Can I harvest neglected garlic bulbs now? Ask an expert," 22 Feb. 2020 If that’s has too much work, treat an insecticidal soap or neem oil. Arricca Elin Sansone, Country Living, "How to Care for a Ficus Tree," 6 Feb. 2020 Scrape off scale with a fingernail, or if that’s too icky, try insecticidal soap or neem oil. Arricca Elin Sansone, House Beautiful, "Your Ultimate Guide to Caring for a Ficus Tree," 22 Jan. 2020 The harlequin bug, a small shiny black insect with red markings, causes black spots and wilting leaves; control by hand picking or applying insecticidal soap. The Editors Of Organic Life, Good Housekeeping, "Cabbage Is One Of The Easiest Vegetables To Grow In Your Garden," 24 May 2017 Keepers can be sprayed outdoors with a light horticultural oil or insecticidal soap. Washington Post, "How the National Arboretum got its ferns and became a civic treasure," 29 Oct. 2019 Of those listed, insecticidal soaps and neem oil are the low toxicity options with respect to bees. oregonlive, "Need a care guide specific to shaded sod? Ask an expert," 20 Oct. 2019 Mealybugs can be beat with repeated applications of an insecticidal soap or horticultural oil spray that coat the insects, following label instructions. Tom Maccubbin,, "Groom, don’t prune hydrangeas," 5 Oct. 2019

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.

See More

First Known Use of insecticidal

1857, in the meaning defined at sense 1

Keep scrolling for more

Learn More about insecticidal

Time Traveler for insecticidal

Time Traveler

The first known use of insecticidal was in 1857

See more words from the same year

Statistics for insecticidal

Cite this Entry

“Insecticidal.” Dictionary, Merriam-Webster, Accessed 11 Aug. 2020.

More from Merriam-Webster on insecticidal

Spanish Central: Translation of insecticidal

Comments on insecticidal

What made you want to look up insecticidal? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

Original Meanings Quiz

  • rembrandt painting a young scholar and his tutor
  • Which of the following is the earliest known sense of the word awe?
Spell It

Can you spell these 10 commonly misspelled words?

Syn City

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!