Blight: After your plant has a good start, clip off all the lower leaves, then continue to trim off dead leaves from the bottom. Sprinkle powder "Copper fungicide" on the plant, you will find this at your garden center.
Do your tomato plants grow huge and out of control each year? Do they flop over, get taken over by disease or overwhelm parts of your garden? Do you want bigger tomatoes earlier in the season? If you answered yes to any of these questions then pruning your tomatoes should be on your garden task list this season.
Organic fungicide for tomatoes: 1 gal water + 1 Tbs baking soda + 2 1/2 Tbs vegetable oil. Shake jug, then add 1/2 tsp of pure castile soap. Pour into a spray bottle. Spray both the top and bottom of leaves as well as the soil around the infected plant. While spraying, shake bottle to keep mix from separating. Repeat every 7 days. (Treats anthrocnose, early tomato blight, leaf blight and spots, and powdery mildew.)