I think I would retire to a very small granite rock in lake Superior if I had to deal with this weed! What the member have said they have to do is terrible to control this pest. Here in the Phoenix area it is almost a curiosity. I hardly irrigate but for gardeners that do it is a nightmare. We have been in a drought for year so I had to really search to find some one that knew what this looked liked. Do you think constant old fashioned hoeing would make any difference? Russ H. In a message dated 4/5/2013 11:14:25 P.M. Pacific Daylight Time, christian.lachaud@gmail.com writes: Russ, Many thanks for your kind advice. One major problem with hunting this weed regularly is that it has important size variations. The tiniest specimens will hardly measure more than 1cm. They will produce just one or two flowers and a few seeds, enough to generate 5 to 10 descendants. These invisible specimens will always escape the gardener's hunt. But you are also correct : there is no other choice than performing a systematic tracking in order to keep the problem under control. *Dr. Christian M. Lachaud, PhD* _________________ http://www.saffron-crocuses.com/ _______________________________________________ pbs mailing list pbs@lists.ibiblio.org http://pacificbulbsociety.org/list.php http://pacificbulbsociety.org/pbswiki/