Is this a nutrient deficiency on my jack-o-latern pumpkins? The inner leaves of the plants are showing mottling going from green to yellow.
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I have something similar on watermelons. Look on the bottom side of the leaves for the tiny insects. It might be spider mites. They are really bad for me this year.
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Hmm… Not spider mites. There is no evidence of any bug or mite.
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