Remove susceptible weeds and volunteer tomato plants to further reduce the risk of this and other diseases.
The fungus overwinters in debris in soil for several years. Southern blight, also known as southern wilt and southern stem rot, is a serious and frequent disease of vegetable crops in North Carolina. Mulch the soil, water early in the day and if possible apply the water directly to the soil with a soaker hose or watering wand.Ī bit more information: Early blight is spread by wind, air and water. Properly space and stake or tower the plants to increase airflow to help reduce the risk of disease. The mulch serves as a barrier between the fungus. Upon transplant of tomatoes, peppers, potatoes, and eggplant, mulch them to get ahead of any early blight living in your soil, which could just be waiting for ideal conditions to spread. Further reduce the risk by keeping plants healthy and properly fertilized. Mulch tomatoes, peppers, potatoes, and eggplant after transplanting to create a barrier against early blight. Ask your local extension service for a list of disease resistant tomatoes suited to your climate. Minimize the risk by growing blight resistant or tolerant varieties. Late blight of potato was responsible for the Irish potato famine of the. Late blight does not occur every year in Minnesota. The disease spreads quickly in fields and can result in total crop failure if untreated. Badly infected leaves eventually turn yellow and drop. Phytophthora infestans is the oomycete, or water mold pathogen, responsible for tomato late blight. Late blight is a potentially devastating disease of tomato and potato, infecting leaves, stems, tomato fruit, and potato tubers. This fungus is most prevalent during warm wet weather.Įarly blight first appears as brown spots with dark concentric circles on lower leaves, then spreads up the plant. To view this video please enable JavaScript, and consider upgrading to a web browser thatĮarly blight is a common tomato disease that infects the leaves, stems and fruit.
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