This fungal disease loves tomatoes and other nightshade plants such as peppers, eggplants, and potatoes. What Is Blight?īlight is always the uninvited guest at the garden party and can appear in a few different forms at various times in the growing season. Once it appears, blight can be difficult to eradicate, but you can use a homemade, organic solution to help slow the spread. The dreaded yellowing and brown spotting of the lower leaves were the first signs. ![]() This may be the year where you grow that 4 lb.After a very humid start to the summer, I discovered blight on some of my tomato plants in the garden. Water your plants the day before spraying, hydration is important! Do not spray pesticides, fungicides, fertilizers or herbicides when it’s in the high 80’s or 90 you can damage your plants. Repeat fungicide treatments every 7 to 14 days. Clean your knife with rubbing alcohol before trimming the next plant to prevent the spread of the disease. A day after treatment, remove the lower branches with sharp razor blade knife. If possible time applications so that 12 hours of dry weather follows applications. Thoroughly spray the plant (bottoms of leaves also) with Bonide Liquid Copper Fungicide concentrate or Bonide Tomato & Vegetable. Tomatoes that have early blight require immediate attention before the disease takes over the plants. Mulch the soil around the tomatoes with black or red plastic, landscape fabric, straw (not hay which contains weed seeds), dry grass clippings (if you don’t use weed killers) or compost.The distance from ground to bottom branches should be a minimum of 2½ feet. Remove lower branches as plants grow to avoid soil splash back. ![]()
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