Answer: 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.
The organic matter you worked into the soil should be enough for now, but you may want to provide a weekly dose of liquid seaweed to increase fruit production. When plants flower, side-dress with compost and when small fruits appear, feed with manure tea to help your plants remain healthy and produce the largest fruit possible
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