Soil treatment after plant disease?
Well, I'm not happy with so many of the vegetables I planted that seem to be unavoidably disease-infested given the cool rainy Spring we've had.
My main area tomatoes look pretty bad with yellowing and browning leaves at the bottom, though they're still producing tomatoes. My beans have the same sort of yellowing-browning problems with the leaves at the bottom. My main area melons also have problems, so the garden is just not doing very well this year, with the exception of the cowpeas and the corn so far, as well as the plants in containers on the deck. I have two other tomato plants and eight cantaloupe plants in a different part of the garden that haven't shown these symptoms yet. Both were planted later.
I am wondering what to do about the soil where the remnants of funguses and other diseases will most certainly remain next year.
Other than solarization, are there other ways to cleanse the soil without damaging its good underground life? I'd solarize if there were time (which also kills pest larva that burrow into the soil), but that takes 6-8 weeks right in the hottest part of the year, which is when a garden is in mid-production.
I'm thinking the very least I could do is apply corn meal to the entire garden area right now. So far, I've applied it only to the soil in areas where the plants appear to have fungal diseases.
Any other suggestions for beating the funguses that are likely to permeate the soil once they get started on the plants? (Not plant treatments, but soil treatments.)
I can rotate crops on a small scale, so I'm interested in what vegetables aren't vulnerable to funguses that attack many garden plants (for planting next year).