spider mite

noun

: any of various small web-spinning mites (family Tetranychidae) that include destructive pests of plants

called also red spider

Examples of spider mite in a Sentence

Recent Examples on the Web
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Consistent moisture can also attract pests like fungus gnats and spider mites, which can quickly kill a plant. Cori Sears, The Spruce, 27 Apr. 2026 While a caterpillar munching on a leaf is fairly easy to spot and remove, smaller insect pests like thrips, spider mites, or unidentified larvae can risk introducing those problems to your own plants. Andy Wilcox, Better Homes & Gardens, 26 Apr. 2026 Keep hydrangeas watered well to withstand spider mite damage. Mary Marlowe Leverette, Southern Living, 22 Apr. 2026 But here’s the part most influencers leave out: marigolds can also attract spider mites, slugs and aphids in dense plantings. Lauren Jarvis-Gibson, Fort Worth Star-Telegram, 11 Apr. 2026 See All Example Sentences for spider mite

Word History

First Known Use

1870, in the meaning defined above

Time Traveler
The first known use of spider mite was in 1870

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Cite this Entry

“Spider mite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spider%20mite. Accessed 2 May. 2026.

Kids Definition

spider mite

noun
: any of various mites that spin webs and include some that attack plants

called also red spider

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