Definition of spider mite
: any of various small web-spinning mites (family Tetranychidae) that include destructive pests of plants — called also
red spider
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Recent Examples of spider mite from the Web
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MacDonald described a crop that was infected with powdery mildew from the beginning and later was infested with spider mites and other pests.
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Watch for spider mites turning leaves tan with tiny mottling and eventually very fine webs.
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Spruce spider mites prefer cool weather and are active now.
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Tiny spider mites cause yellow-stippled leaves; control these pests by knocking them off the plant with a spray of water.
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All parts of the plant can be toxic if ingested –– except, alas, for such pests as cabbage worms, spider mites, aphids and whiteflies.
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For spider mites, look for a houseplant insecticide that is labeled for food crops.
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Even insects have varying preferences for cucurbitacins—the compounds attract cucumber beetles but repel other insects, such as aphids and spider mites.
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Meyers are usually disease free, but there are three pests that plague it: scale, aphids and spider mites.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'spider mite.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of spider mite
1870
Learn More about spider mite
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See words that rhyme with spider mite Britannica.com: Encyclopedia article about spider mite
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