Hi Friends, I have a 12' X 4' raised bed where I've grown a number of bulbs. Unfortunately, two spp. of Oxalis has misbehaved to the point that I've had to remove all plants I wish to keep, wash all roots to rid them of invaders and relocate them. Once the bed is empty except for the lusty Oxalis, how do I kill those remaining bulbs, some of which are two plus cms in diameter? Sometime this year, I recall a post that said if you cover the entire area with dark plastic and of course, suspend watering, new bulbs will be unable to form. But what about the old, mature bulbs? It seems they will continue to be viable for a long, long time. SOS, please help and thanks very much, Pamela Slate AZ USA Zone 9-ish after the most brutal summer ever _______________________________________________ pbs mailing list pbs@lists.pacificbulbsociety.net http://lists.pacificbulbsociety.net/cgi-bin/…