Well the ajax or comet I heard works great, if you want to stop rodents spraying a heavy dose of Pine-sol around and under your RV, they doubt like it and vacate and don't come back.
As far as the larger and Walmart sell GRANTS ANT BAIT works great. They feast in 1 or 2 days (usually 1 day) no more ants.for the smaller ants Boric acid mixed with honey or grape jelly put in caps and placed near concentrations.
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