Subscribe By Email chevron_right. What it looks like: The plants look healthy, and the fruit develops normally. Although these each present with different symptoms, all tend to affect the lower leaves first. Water the plants from the base when possible, using either a drip irrigation system or a watering can. As tomatoes … You might have noticed your tomato plant leaves turning yellow, brown, or getting spots. A tomato plant’s bottom leaves will turn yellow due to age, nutrient deficiencies, uneven watering, or diseases. Tomato wilt is a symptom of dis-ease that makes the tomato plant leaves droop and lose their shape. Early and Late Blights. Plants may wilt badly when soils are dry, but will revive rapidly when they are watered. I have moved the plants around the garden and even tried growing them in containers. Early leaf blight appears as dark spots of concentric circles that grow and multiply, causing leaves to wilt. Fungal Infections Fungal infections are the most likely culprits if your tomato plants have lower leaves that are beginning to wilt and die. There are basically two options next year. Of course, there are some steps you can take to prevent yellow leaves on your tomato plants (assuming age is not the problem! A thorough watering once a week during hot, dry weather should be sufficient. It can be difficult to determine which fungus is causing the wilted tomato plants. My tomato plants' leaves are brown and dying. Working hand-in-hand with our partners at N.C. A&T and 101 local governments, we conduct groundbreaking research that addresses real-world issues in communities across the state. At first the green tomatoes were ripening, but now the tomatoes have a strange skin disease, which I assume is the same problem as the rest of the plant. These films, which look like aluminum foil, are available from online retailers. Yellowing leaves at the bottom of a tomato plant also can mean they aren’t getting enough sun. These include ‘Amelia’, which is the most widely available resistant variety, ‘Crista’, ‘Talladega’, ‘BHN 444’ (sometimes sold as ‘Southern Star’), ‘BHN 640’, ‘Primo Red’, ‘Fletcher’, ‘Mountain Glory’, and ‘Red Defender’. A simple fix is to prune out some of the suckers and non-fruit-bearing branches. It looks similar to what the plants look like after a frost, but there has not been a frost yet. Environmental Tomato Issues While disease is a common reason for tomato plants dying, disease isn’t the only thing that can kill tomato plants. Septoria leaf spot is one of the most common tomato plant leaf diseases. If you are growing an indeterminate (vine) type of tomato plant, begin pruning when the foliage underneath the first set of flowers on the plant begins to turn yellow. Burgaw, NC 28425 Tomato Spotted Wilt Virus If your plants are turning black on the leaves, stems, or fruit, then you will want to find out what the problem is and treat it if you can. 801 S Walker St You just can’t get the same intensity and sweetness from any tomato ... Read More about Tomato Leaf Problems: A Visual Guide The site may not look or function as expected. For benomyl, for example, mix 1/2 ounce with 5 gallons of water for the spray. If your tomato plants begin to wilt, develop spots, or show other unusual symptoms, it is important to have the cause of the problem correctly diagnosed so you will know how to treat the problem this year and how to best avoid it next year. Send Explanation. Watering the leaves directly can lead to leaf mold. If you have lost a tomato plant to TSWV this year it is not too late to replant with a resistant variety. One practice that has been found to reduce this disease is covering the ground under plants with a reflective plastic film. Verticillium Wilt. The effects of both are very similar, in that tomato plants wilt and die rapidly as the fungus clogs the vascular system of the tomato plant. Since the mid 90’s, tomato spotted wilt virus (TSWV) has become one of the most serious diseases of tomatoes in our area. In smaller gardens where there's not room to rotate the tomato plants each year, treat the soil with a fungicide such as mancozeb or benomyl. Learn more about tomato spotted wilt virus from these websites: Visit your local Cooperative Extension office to learn more about gardening and landscape care. Tomato blight (either early or late) 2. Usually these symptoms show up in the top leaves of the plant first, while most other tomato diseases show up on the lower leaves first. Small black spots may show up in the center. Like most plant viruses, TSWV is spread by insects. 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