Cardamine hirsuta
Jadeboy48@aol.com (Tue, 02 Apr 2013 21:51:15 PDT)

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
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