X2 on D.E.
I do a perimeter spray with Home Defense, around tires, jacks and hoses. A little vaseline on cords and hoses discourage their use as an access point.
Food Grade D.E. is nontoxic and it mixes into the ground and continues to work. It works on any insect with an exoskeleton. Tractor Supply, Amazon, Vet supply.
It should be more acceptable than borax, comet, ajax, etc.to campground owners and gov. parks.
I have seen good results with the Terro Granules outside and inside the house but have not used it around the MH.
Jan and Rocky
Volunteers USFWS. 8500 hrs each, 28 refuges. 04 Allegro 30DA, WH 8.1, Banks, 2012 Jeep Liberty , Brake Buddy Adv Select, 300watts Solar,
"Philippians 4:11-13 KJV"