Why Are My Tomato Plant Leaves Curling Or Rolling What If you notice leaf curl, always look at the environmental factors first – water, sun, heat, wind. pests are next on the list, followed by disease. thankfully, most causes of tomato leaf curl are harmless and will resolve with a little tlc. if you do face a fatal reason for leaf curl, chalk it up to experience. The stress should resolve itself in a couple of weeks with the leaves returning to normal. 5. transplant shock. if you notice leaf curl in a recently transplanted tomato, the cause is usually transplant shock. whenever tomato plants are moved to a new spot, there is always a chance of root damage.
Curl Leaves On Tomato Plant 9. wind damage. 1. high temperatures. the most common cause of tomato leaves curling up is high temperatures. during the hot summer months, tomato leaves may begin to curl as a defense mechanism. if you have had a heatwave and your tomato leaves have begun to roll upwards, this is almost definitely the issue. 4. weed killers. a weed free lawn could be the reason for tomato leaves curling. "off target drift of herbicides such as 2,4 d or dicamba is a frequent offender," says nair. if wind blows weed killer onto your tomato plants, the chemicals will affect foliage growth and may even kill your tomatoes. plants with herbicide injury have leaves that. 3. wind damage. wind can also be a factor that contributes to leaf curl in tomato plants. “high winds, blowing dust and low humidity can damage the leaves and stems on tomato plants. heat and low moisture can cause the edges of the tomato leaves to die back, then twist and curl.”. texas a&m agrilife extension service. 8. excessive watering. while under watering causes wilted and shriveled leaves, the opposite extreme of overwatering leads to issues like curled tomato leaves as well. when soil remains too wet for too long, it prevents oxygen from reaching the tomato plant’s vulnerable roots.
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