Hi Margaret! It's still a little early yet here for tomatoes; the nurseries don't even have them seeded yet. I haven't decided which varieties I will grow this year. One of my projects for this week is going through my seeds and testing viability, and then I will decide what I will grow. That is very interesting about the black walnut leaves. Perhaps I can find some and do a test section. DH wants me to use as little Roundup as possible as I prepare to grow the herbs so I will probably only use it in non-growing areas to try to keep a Quackgrass free perimeter. So far, the only non-chemical means I've found is to turn the soil and rake out the roots then let them dry which has to be repeated several times to get them all. Terry -----Original Message----- From: owner-gardeners@globalgarden.com [mailto:owner-gardeners@globalgarden.com] On Behalf Of Margaret Lauterbach Sent: Friday, April 18, 2003 7:28 AM To: gardeners@globalgarden.com Subject: RE: [gardeners] New listowner What kind of tomatoes are you growing? On another list, a subject came up you may be interested in. I'm sure you know that dried quackgrass is a molluscicide. One woman said she raked black walnut leaves onto a patch of quackgrass, and when she raked the leaves off, the quackgrass was gone. I don't know whether it was dead or dormant and gone with the rake, but it may be a way to control quackgrass. Worth trying, if you know of anyone with walnut trees (English walnut trees have juglone too). Margaret L