to sueG:
excuse me, i realise this quest is coming quite a bit later than your posting, sue, but if you don't mind....what colour are these beetles?? are they, by some very unhappy chance, khaki coloured, smaller than. uh...let's say...japanese beetles??? and do these rotten beetles also devour roses, most fruit tree leaves, and, of course, their most favourite: Tilia (or Linden tree)?????
if so, you're dealing with the infamous ROSE CHAFTER and the ONLY manner in which to rid your lilies and everything else on their menu list is to MANUALLY pick them off and dump them into a bowl, bottle, or any other type of container in which a mixture of water and liquid dish detergent - (or squish them between your fingers).
although their resemblance to japanese beetles is quite strong, it seems, according to experts, there IS no true relation...and this is why the pherenome bait for JB doesn't work!!
alas, too bad. each year they defoliate my linden tree down from a shade tree to a shadow of a tree; they munch through rose blossoms AND the leaves; they devour ALL my varieties of plum trees; they even dine in on asparagus ferns!!!
i just cannot undersstand WHY noah allowed them to come aboard the ark!!!!!