Twospotted spider mites are serious pests whenever hot, dry weather persists. Large spider mite populations may develop on both soybean and corn. Injury to soybean has been seen near Atlantic in southwestern Iowa. No injury has been reported in corn. Although many species of mites can injure plants, it is the twospotted spider mite that attacks soybean and is the primary mite on corn in Iowa.
Iowa State University
Rice, Marlin E., "Spider mites damaging some soybean" (2002). Integrated Crop Management News. 1838.
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