white·​fly | \ ˈ(h)wīt-ˌflī How to pronounce whitefly (audio) \

Definition of whitefly

: any of numerous small homopterous insects (family Aleyrodidae) that are injurious plant pests

Examples of whitefly in a Sentence

Recent Examples on the Web Spray plants such as camellia, holly, gardenia, magnolia and privet with horticultural oil sprays to control scale and whitefly. Dan Gill, NOLA.com, "Protect your citrus from birds - it will be ripening soon," 7 Oct. 2020 How to grow it: Think about kind options to maintain a healthy garden, such as having kids plant garden helpers like thyme and tansy, which both have strong oils that deter pesky bugs like aphids and whiteflies. Kier Holmes, National Geographic, "How gardening can teach kids life skills," 29 May 2020 Protect To control pests like aphids and whiteflies, introduce ladybugs and lacewings. Heather Arndt Anderson, Sunset Magazine, "Your Ultimate Spring Gardening To-Do List for March and April," 16 Mar. 2020 The crop is also susceptible to viruses transmitted by the common pest known as the whitefly, which can devastate farms. Wired Staff, Wired, "Laura Boykin Makes the Case for Cassava," 13 Dec. 2019 Examine houseplants and tropicals before bringing them indoors and discard any that are full of whitefly, scale, mealybugs or other tenacious pests. Washington Post, "How the National Arboretum got its ferns and became a civic treasure," 29 Oct. 2019 Also, when the whiteflies are under control, the sooty mold gradually disappears. Tom Maccubbin, orlandosentinel.com, "When and how to fertilize ixora," 23 Nov. 2019 The key with whitefly — whether on your hibiscus or Brussels sprouts — is to eradicate it early before the numbers build. Adrian Higgins, Washington Post, "The sultry plant that will break your heart," 13 Aug. 2019 The more tenacious pest is whitefly, and the options for dealing with this range from biological controls that include ordering parasitic wasps to heavy-duty systemic pesticides, with the risk of harm to beneficial insects. Adrian Higgins, Washington Post, "The sultry plant that will break your heart," 13 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'whitefly.' 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 whitefly

1896, in the meaning defined above

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The first known use of whitefly was in 1896

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Last Updated

16 Oct 2020

Cite this Entry

“Whitefly.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/whitefly. Accessed 3 Dec. 2020.

More from Merriam-Webster on whitefly

Britannica.com: Encyclopedia article about whitefly

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