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Q. Year after year I struggle with with these pests. Would it help to pre-treat tomato plants with a fish oil, sesame oil, and castor oil mix work?
A. Spider mites pierce leaves and feed on plant sap, beginning on leaves’ undersides. They work from the lower part of the plant to upper leaves. Small wounds on plants that look like white specks tell you that spider mites have been hard at work. If left unchecked, affected leaves develop a bronze or gray color, turn brown, and fall off. Spider mites also leave their signature webbing strung between plant parts or beneath leaves. They are active year-round.
How to control spider mites
Spider mites are difficult to control and have stumped many a tomato gardener. With a life cycle of 1-2 weeks in optimum conditions, spider mites multiply rapidly and feed continuously. Identify and control spider mites quickly to prevent them from spreading through your entire tomato crop.
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