the hives with heavy beetle populations are in the shade til 1:00 pm & full sun the rest of the day. my home yard has full morning sun, shade from 11:00 am til about 3:00 pm, & then full sun again which i think is ideal. they get full sun all day in the winter. i'm looking for another location because with 6 hives at home i'm pushing it as far as potential problems with neighbors. i'll install some oil traps for a couple weeks before i move those 2 hives. i have some beetle barn traps & cd cases baited with butter spray & combat ( fripinol ) around the hives but not in the hives. there are quite few dead beetles in those. i did have an empty super on top of those hives inner covers with a 2nd inner cover with the beetle barns on top of the 2nd inner cover. it was a good hidy hole for the beetles but when i read up on fripinol it says that it's not a quick kill allowing ants ( or beetles ) to return to their nests & contaminate the nest. so i discontinued that since i did not want contaminated beetles returning to the frames & contaminating them.