Do tomato plants recover from leaf curl?

Written by
Tina Carter
Reviewed by
Prof. Charles Hartman, Ph.D.Tomato plants can respond positively to leaf curl, if the causes are able to return to a normal state of things, such as: over watering or a lack of nutrients. I personally had a client's entire crop come back in only 10 days, by correcting calcium levels and adjusting watering. A viral health problem should be addressed by the immediate removal of plant (leaves); needless to say, the risk of waiting could result in the loss of nearby plants, as well.
Reversible Causes
- Overwatering: 7-14 days after soil drying
- Calcium deficiency: 10 days post-Epsom salt application
- Pest stress: 5 days with neem oil treatments
Prevention Tactics
- Test soil weekly with pH strips
- Install yellow sticky traps for early pest detection
- Rotate crops annually to disrupt disease cycles
Watch for new growth for signs of recovery. After we made some corrections, healthy new leaves should emerge within the next 5 days. Since switching to drip irrigation and foliar calcium, one client's plants had an 80% improvement from their previous conditions. To document the progress, take daily photos. As you review comparisons, slight improvement will emerge that may not be obvious on a "day-to-day" evaluation.
Avoid relapse by performing soil checks every two weeks. I teach the 2-inch rule: check moisture delays in the soil at intervals of 2 inches depth. This allowed us to identify another nursery's chronic issue - overwatering. Lastly, whenever possible, add windbreaks and periodically remove any board fencing. Consistent airflow to your plants will contribute to sturdiness and lessens the opportunity for disease pressure.
Read the full article: Tomato Leaves Curling: Causes and Solutions