Check with your state extension service. This is one area that most state extensions deal with. It was explained to me long ago that mulch by itself does not harbor termites. You may see them active in some woody mulch, but the termite colony lives in dead wood, like an old stump, large dead root or fallen tree that was buried. Verify this with your state reps before using that idea, as nature varies in different climates and areas.
North central Indiana
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