I just saw a couple flying around so today I got out the Bag-A-Bug's and put a couple around the yard... I love these for controling them since they use no chemicals... Just a scent that attacts the beetles, they try to land and fall into the bag... Every few weeks when the bag gets full (and smelly...ewwwww) you just remove the old bag and throw it away and put on a new one... Japaneese start out as the grubs that eat your law from underneeth and when the morf in the summer they eat all your planes including roses...
