Spider mites are common parasites on many different crops and houseplants. Spider mites are commonly found on the underside of leaves where they suck on plants. When plants are infested with spider mites, the leaves may turn yellow and fall off. If a plant appears affected, check the underside of the leaves for mites or their webbing. As adults, spider mites have 8 legs and are very difficult to see with the naked eye. One may need a magnifying glass to see the tiny mites. Spider mites are not insects but belong to a group called arachnids, which includes ticks, spiders, and scorpions.
There are many species of spider mites and one species may be more common in your area than another. Consider contacting your local Cooperative Extension Service for help identifying a pest.
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Through its county agents, the Cooperative Extension Service gives individuals access to the resources at land-grant universities across the nation. These universities are centers for research in many subjects, including entomology (the study of insects) and agriculture. Each county within the United States has an Extension office, which is staffed with agents who work closely with university-based Extension specialists to deliver answers to your questions about gardening, agriculture, and pest control. You can find the phone number for your local county extension office in the local government section (often marked with blue pages) of your telephone directory or by clicking on the map below.
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