Well, I shouldn't have just ignored when I first saw them around the ground outside the MH. Seen them while doing outside maintenance and washing. Some were on the power cord from the outside box into...
Outside the RV I use Ortho Home Defense Max. I spray the power cable, hoses, tires, and anything else that touches the ground, it controls them well. It even kills fire ant mounds when I find one near the RV at a campground.
