For me, A liquid (possibly with a name like Thurigen) containing something with a name something like Bacillis Thurigenisis var. israeliensis :-) worked well. It takes some time, however, I think it builds a colony of little critters that do the job very well if you keep them happy enough. I just added it to their waterings a few times (and watered it in lightly). My problem was in heated greenhouse conditions. KellyO Kelly O'Neill Wet Rock Gardens Flower Farm U-Pick and more at the farm (open by appointment November thru February): 2877 N 19th Street Springfield, Oregon 97477 To contact us: * Business Office for mail or by appointment only: gardens@wetrock.com * 1950 Yolanda AVE http://www.wetrock.com/ * Springfield, Oregon 97477 (541) 746-4444 *