Yes, sterilising soil with steam is an excellent idea. Just heat the soil deep enough, some seeds may be pretty far down. Russ H. In a message dated 4/2/2013 6:20:08 P.M. Pacific Daylight Time, ksayce@Willapabay.org writes: This little pest is also in my garden, and I have shifted to the use of boiling water or steam (as with a steam-producing floor mop) to control cardamine seedlings. This is especially effective on my gravel paths. Vinegar sprays also work, but in my damp climate, steam seems the best as I don't have to wait for a dry day. Kathleen _______________________________________________ pbs mailing list pbs@lists.ibiblio.org http://pacificbulbsociety.org/list.php http://pacificbulbsociety.org/pbswiki/