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Home, landscape, and structural pest news from the UC Statewide Integrated Pest Management Program
Suburban Neighborhood
by Julian Hoyle
on August 18, 2023 at 10:00 AM
If you look at your tomato plants in the afternoon, after a hot day, and the leaves are curled, this could simply be from environmental stress. The plant is reducing the leaf surface area to minimize water loss. Look at your tomato plants first thing in the morning when it is cool. If the leaves are not curled, then you do not have a problem. If they are curled, then there could be an issue to investigate further.  
Julian Hoyle
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