Answer: Yes, blight is caused by a soil-borne fungus. Here are some steps you can take to help control this problem. The first step in combatting any fungal or bacterial disease is to practice good sanitation in your garden. Promptly remove and destroy any diseased plant material, keep weeds down, and rotate crops. (When you rotate crops, rotate by family--for example, potatoes and eggplant are related to tomatoes, so don't follow your tomato crop with eggplant the next year.) Keep plants well-spaced topromote good air circulation. And if you do any pruning, sterilize tools with rubbing alcohol between cuts. You might try some of the "Mountain" varieties, developed by Dr. Randy Gardner at North Carolina State Univ., including Mountain Delight VFFAand Mountain Supreme VF. These varieties have shown some resistence to blight, and are available from Tomato Growers Supply Co., PO Box 2237, Fort Meyers, FL 33902, (914) 768-1119.
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