Paul2032 said:Pictures would help. There are a number of problems which are exhibited on the leaves....often different problems in different areas of the country with different rainfall, humidity, etc. Cut thru one of the stems and if it is discolored it might be fusarium or verticillium wilt.
dyzzypyxxy said:My tomatoes get all sorts of diseases down here in Florida, and I've had a little bit of success with giving the plants a douse with a gallon or so of water plus hydrogen peroxide. Get a big bottle of peroxide at the drug store or grocery store. Mix it with water at 8oz. to a gallon. Douse the whole root area of the plant with this. Each plant showing symptoms gets a whole gallon, as you really need to saturate all the soil around the plant with this stuff.
Sometimes, (only sometimes) the infection will be stopped by this treatment. It seems to work best if I catch the plants pretty early in the stages of the disease i.e as soon as symptoms appear. So, well what can I say? Hurry!
If it works, it may carry your plants through to the end of the season, at least. Then, when you remove the plants, turn the soil over so that it gets well exposed to the cold during the winter to hopefully kill off the pathogens. Better not plant tomatoes in the same area next year, either.