Boy I hear ya! I spent hours sprinkling sevin around my whole RV, special attention to the water hose and electrical cord, etc., etc., to protect it from ants.
I left for lunch and came back and the whole cabover was filled with ants!! Looked outside and I had left the awning rod leaning up against the RV and there they all were running up the the rod and up the RV into the window in thru the weep holes. :R
Geeze You just can't allow anything to touch your RV and the ground with those darn ants. Looks like you've got your work cut out trimming the tree branches! :B