next year\'s tomatoes & soil

Berkeley, CA(Zone 9a)

Although I still have some ripening tomatoes (I know, I'm lucky) most of the plants have powdery "fungus" or whatever that blows around while picking a tomato or pulling out the plants. Do these spores overwinter & if so, is there something I can do, now, to prevent next year's tomatoes from having problems even though I don't plant in the exact same spot?
Thanks for all your responses.

Cleveland,GA/Atlanta, GA(Zone 7b)

Probably does overwinter but has it's most likely one of many organisms that breaks down already dead and dying plant matter. Many fungi are beneficial to the soil or to organizims that benefit the soil and feed on them. Consider contacting your local extension service or, better yet, the UC Berkeley Dept. of Plant and Microbial Biology. They should be able to id and advise. I would not chemically treat unless there is confirmation of a problem.

Jackson, MO(Zone 6b)

My Co Agent says to get rid of tomatoes with that have disease and not to compost them. Just my two cents.

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