As soon as warm weather arrives, ants can find their way into a motorhome within hours, entering through the threshold, steps, and cracks. Experts recommend spraying a vinegar-water solution on these areas to break the pheromone trails that guide the insects to food. Research from the universities of Minnesota and Nebraska supports the method's effectiveness.
However, vinegar does not eliminate the colony; it only temporarily disorients the ants. It should therefore be combined with sealing cracks and maintaining cleanliness. Avoid contact with sensitive surfaces and do not mix vinegar with bleach.