Re: gypsum as bindweed killer was: bindweed was: Odd reference to potatoes
- To:
- Subject: Re: gypsum as bindweed killer was: bindweed was: Odd reference to potatoes
- From: M* T*
- Date: Wed, 2 Feb 2000 02:27:36 -0500
Interesting theory, Margaret. But, if it is true, think it must have
something to do with the chemical reaction to the particular type of
soil in your area, as it's sold around here to loosen clay soil and
is not supposed to have any detrimental effects on plants at all. If
it were good at eradicating bindweed under any soil conditions, I
should imagine that major plus would be touted to the skies by the
manufacturers:-)
Marge Talt, zone 7 Maryland
mtalt@clark.net
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> From: margaret lauterbach <mlaute@micron.net>
> Date: Tuesday, February 01, 2000 10:09 AM
> I think bindweed wins hands down, partly because it will strangle
> perennials if left alone. Now that I'm on topic, I'd like to get
> subscribers' opinions on the following: I live in Boise, ID, a
semi-desert
> area that has hardpan in the form of caliche at depths ranging from
surface
> to 30 inches below surface. A former state official told me
information
> from one of the most important commercial farm operations led him
to apply
> gypsum to his soil annually. He had bindweed that he theorized
stopped the
> root from going deeper, but the root lay atop the caliche,
spreading here
> and there. After some years he had no bindweed, and his theory was
that the
> gypsum had ultimately killed it. I think there is some sulfur in
gypsum,
> although not a substantial amount. Thanks for your thoughts,
Margaret L
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