Avatar for SRay14019
Jun 8, 2020 12:30 AM CST
Los Angeles, Ca
I am growing several heirloom tomatoes and the Lemon Boy has terrible leaf curl. I increase watering- it's on the corner of the bed so I thought it might not be getting enough, but no change. Don't really see any pests. Any advice?


Thumb of 2020-06-08/SRay14019/05b941
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Avatar for oneeyeluke
Jun 8, 2020 1:52 AM CST
Name: one-eye-luke US.Vet.
Texas (Zone 8a)
Quitter's never Win
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This type of leaf curl is caused from environmental stress. Causes for the stress can come from excessive moisture and too much nitrogen, high temperatures, insufficient water or root damage of some type. In the case of physiological leaf curl, symptoms occur first on the lower, older leaves. If you over-water your plants in the beginning the roots can be damage and not show it for a couple of weeks. When the soil dries the leaf damage shows up and the water damage happened weeks earlier.
NOT A EXPERT! Just a grow worm! I never met a plant I didn’t love.✌
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Jun 8, 2020 1:59 AM CST
Name: Lynda Horn
Arkansas (Zone 7b)
Eat more tomatoes!
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I agree with Luke about the leaf curl, but the leaf in the second pic shows clear signs of disease. Best guess is a spot disease. Begin treatment now.
Yesterday is gone. Tomorrow has not yet come. We have only today. Let us begin.
Mother Teresa
Avatar for SRay14019
Jun 8, 2020 8:49 AM CST
Los Angeles, Ca
Thanks! Is there any way to treat / reverse physiological lest curl?
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Jun 8, 2020 9:12 AM CST
Name: Lynda Horn
Arkansas (Zone 7b)
Eat more tomatoes!
Bee Lover Lover of wildlife (Black bear badge) Tomato Heads Salvias Lover of wildlife (Raccoon badge) Peppers
Organic Gardener Native Plants and Wildflowers Morning Glories Master Gardener: Arkansas Lilies Hummingbirder
No, but it does usually clear upon its own. Smiling
Yesterday is gone. Tomorrow has not yet come. We have only today. Let us begin.
Mother Teresa
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