I noticed these little mud-tunnels running up my walls in a few locations (TERMITES!). This is a wooden structure with a dirt and gravel floor; there is a “foundation” of pressure treated wood about a foot high off the dirt. My strategy has been to scrape the adobe tunnels off, dig the dirt up next to the wall a few inches deep, and sprinkle BORAX next to the wall. Any time I have untreated wood setting directly on the floor, I sprinkle (dump) borax under it. Haven’t seen them come back, yet…..
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