![]() ![]() Remember to practice good sanitation in the garden, rotate crop families and avoid overhead irrigation and you will be less likely to have disease issues. Thorough coverage of the tops and undersides of the leaves is important. Remove and dispose of any affected plant parts, especially before spraying, and be sure to disinfect pruners between plants.Ĭopper sprays can slow or prevent the spread. If you see infection on just a single plant, consider removing that plant to prevent spread to your other tomato plants. Tomato growers rated flavor as their top breeding priority, followed by disease resistance with late blight (LB). Stripey aka Tigerella, Black Plum and Legend are some others. There are a just a few resistant varieties, with Juliet being the most popular. Plant your tomato plants far enough apart that they receive good air circulation. Overhead irrigation can splash fungal spores up on the bottom leaves of the plant, and wetting the leaves provides an environment conducive to fungal growth. This will prevent fungal spores from splashing up on the bottom leaves when it rains.Īvoid overhead irrigation and use drip irrigation when possible. Try to rotate so that the same plant family is only in the same area of the garden for one out of every three years.Īnother helpful practice is to remove the lower leaves of the tomato plant as the plant grows, so that the bottom foot of the stem is bare. Typically, spots contain irregular concentric rings, and are surrounded by irregular zones of yellow tissue. Gardeners usually describe spots, leaf yellowing, and defoliation, beginning at the bottom of plants and moving upwards. will go a long way in preventing disease from recurring every year. JOne of the most common diseases of home garden tomatoes is early blight. ![]() Tomatoes, potatoes, peppers and eggplant are all in the same family, so rotating southern peas, corn, squash, etc. Tomato Late Blight in Wayne County, Ohio - Sally Miller, Department of Plant Pathology, 33 Late blight was found today, July 17, 2013, in heirloom tomatoes in Wayne County, OH. Since the fungus can persist for at least one year in the soil, crop rotation is quite important. The fungus often overwinters in debris from the previous season in the soil. Dark spots with concentric rings develop on the leaves, and if the fruit is affected spots begin at the stem end, forming a dark sunken area with concentric rings. The Early Blight fungus generally starts at the bottom of the plant, affecting leaves, stems, and fruits. As with most diseases, stressed plants or plants in poor health are more susceptible. Early Blight is a common fungal disease of tomatoes caused by the fungal organism Alternaria solani. ![]()
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