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Q.What Is This White Round In My Vegetable Under Side Leaves?

Zone Wilmington-90744 | Anonymous added on August 6, 2026 | Answered

Every year I see this types in my vegetables underside leaves? What is cause & how to fix it? Can you Pl tell me what is routine preventive treatment from beginning for spidemites & ants? I have big problem of spider mites in my vegetable garden.

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GKH_Susan
Certified GKH Gardening Expert
Answered on August 9, 2026

I didn't see a photo of the white round on leaf undersides. If it is insects, it could be aphids, scale, or spider mites. If it is white spots, it could be a fungal infection such as powdery mildew.

For spider mites, they are attracted to water stressed plants. Keep plants healthy to ward off spider mites and occasionally spray the leaves with water. Ants like dry spots too, so keep plants well watered.

These articles should help:

https://www.gardeningknowhow.com/plant-problems/pests/insects/spider-mite-treatment.htm

https://www.gardeningknowhow.com/plant-problems/pests/insects/get-rid-of-ants.htm

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