Curled Leaves On Tomatoes - Knowledgebase Question

Alta Loma, CA
Question by aurora2
September 20, 1998
My tomatoes are starting to have curled leaves. The leaves are curling inward toward the middle. Why does this happen and is there a way to prevent it?


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Answer from NGA
September 20, 1998

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The exact cause of tomato leaf roll is not fully known. It appears about the time of fruit setting, and gives the leaves a cupped appearance. The condition appears to be more common on staked and pruned plants and occurs when excessive rainfall or overwatering keeps the soil wet for extended periods of time. It is also related to intensive sunlight which causes carbohydrates to accumulate in the leaves. Some varieties of tomatoes have characteristically curled leaves. Your plants should continue to produce fruit with or without curled leaves.

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