For a free copy, drop by the County Extension Office. Continue a garden sanitation program. Remove and destroy debris from last season's crops. Keep in mind that debris from diseased plants should not be added to compost piles. This will speed decomposition and cut down on the amount of disease inoculum that could cause problems in the next crop.
Rotation is one of the oldest disease control measures available.
It's also effective and inexpensive. To set up a rotation strategy, begin with last year's garden plan and group the different vegetable types. If all five groups of vegetables are being grown, adopt a five year rotation plan. Repair sprayers used in fungicide and insecticide application so they'll be ready for use without delay next season. After tomato, cabbage, and other transplants are set, it's important to be ready to provide protection from early season diseases and insects through timely applications of fungicides and insecticides.