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Oligonychus is a genus of mites in the family Tetranychidae, the spider mites. Many members of this genus are familiar pests of plants. There are about 200 described species.
Oligonychus coffeae (tea red spider mite), "considered to be the most serious pest of tea". Also a pest of coffee, cotton, and jute, and recorded on cashew, African oil palm, rubber, and several fruit crops
Oligonychus gossypii (cotton red mite), cotton, fruits, beans, ornamentals
Oligonychus ilicis (southern red mite, coffee red mite), a pest of many woody ornamentals, especially azaleas and camellias, first described from American holly (Ilex opaca)
Oligonychus indicus (sugarcane red spider mite, sugarcane leaf mite), banana and grass crops