Yellowish or brown winding trails or blotches appear in the leaves. The leaves may also be distorted and have tiny green blisters or multiple pinprick puncture marks on the lower surface. In severe cases, all the leaves are affected, and most of them may drop from the plant. When the blotch is torn open, a tiny, yellowish-white maggot is found.
Control leaf miners with an insecticide labeled for this pest, following label directions. Rake up and destroy fallen leaves.
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