With no other symptoms of disease, no treatment is necessary. Is all this just some transplant shock, or over/under watering issue, and will they eventually snap out of it? Iâve noticed that a lot of them have leaves and branches that are curling under. So, I turned down the light (turned off the blooming switch) and raised it a bit and rotated the plants around. ... My WW2 veteran neighbor brought this heirloom garlic home from Italy after the war and had been sustainably growing it since. Advanced Platinum LED Grow Lights are best and well known name in grow light industry. Symptoms of the Tomato Curling Leaves. Close. I had a similar problem two years ago, and took some leaves up to Cornell Horticulture Department. Leaves Curling Up. Phew! I ruled both of these out, since my tomato leaves looked nothing like the pictures and just didnât fit the description either. Vote. As for tomato leaf curl virus, yes, it does cause upward leaf roll, and stunted growth, but it doesn't progress from the bottom of the plant upward. Leaf curl can be quite frustrating to deal with as multiple conditions can cause it or a combination of any and the only way to deal with it is by identifying the exact cause. Even though the disease is called tomato leaf curl, the symptoms are not limited to the leaves twisting or curling up. A common cause of curled leaves on tomato plants is physiological leaf roll, due to hot & dry air, wind, root damage, excessive fertilizer, lack of water, or cool and damp weather. I've notice the yellowing and curling are worse for the tomato plants that are more directly under the larger light. Often appearing on plants grown under intense light, there is no cause for concern or need for treatment of purple tomato leaves. The stress could either be environmental, biological or chemical related. While it _will_ affect all leaves, it usually begins on new growth, which you said seems to be healthy. There are hundreds of tomato viruses that cause tomato leaf curling or stunting growth in them. Since there are many causes from pests to pathogens to weather conditions, the symptoms also differ. Purple leaves are caused by expression of anthocyanin due to light exposure. Plant only pest and disease-resistant varieties. Other possible causes include wind damage, herbicides, diseases, and pests. Hey yâall, as I mentioned in other threads, I transplanted most of my tomato seedlings yesterday. âI tâs not Leaf Curl Virus, because the leaves always curl upward. The most common are the Tomato Mosaic virus and the Tomato Spotted Wilt virus. Also, protect garden plants from possible whitefly infestations by adding floating row covers and keep the area free of weeds, which often attract these pests. This type of leaf curl is a response to environmental issues almost 100% of the time. If you are growing tomatoes in an AeroGarden model with less vertical growing space and you are concerned about your tomato plant stretching too close to the grow light, here are some pruning tips to ensure your tomatoes remain compact and under control. Also, the underside of some leaves are purple. I took over duties just before he passed a couple of years ago and continue in his honor. Hope itâs not my potting soil. Cure for Tomato Leaves Curling The key to managing tomato leaf curl is through prevention. Posted by just now. If your plant is being exposed to too much sun, too hot of temperatures, too much wind, or a lack of water, the leaves will curl up to protect themselves. Always extend your light to at least 3-5 in away from the tops of plants. My tomato starts leaves are curling and one has developed purple spots under-leaf. They also offer a complete 12 band spectrum that ranges from Ultraviolet to Infrared, suitable for indoor plant life-cycle. Tomato plant leaves respond to various stresses by rolling or curling up. Here ⦠I also reduced the numbers of hours per day they are getting light from 16 to 13. They produce the top quality and powerful grow lights with unmatched features. Leaves that curl up are very common and wonât hurt your tomato plant at all. Tomato leaf curl is often an environmental change due to stress.