Answer: Soil solarization is a simple, safe, and effective way to reduce populations of damaging soil pests. Radiant heat from the sun is the lethal agent involved in soil solarization. A clear polyethylene mulch or tarp is used to trap solar heat in the soil. Over a period of several weeks to a few months, soil temperatures become high enough to kill many of the damaging soil pests and weed seed to a depth of nearly 8 inches. While you are solarizing your nematode infested soil you can grow your tomatoes in 5-gallon buckets filled with potting soil. Best wishes with your garden!
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