On Thu, 26 Jul 2007 13:34:31 +0100
K wrote:

I understand that dandelions secrete a chemical which inhibits the
growth of other plants and that may partly account for the length of
time it's taken for the grass/other flowers to fill in the patches, but
I'm now inclined to take the assertion about glyphosate becoming
inactive on contact with the soil with a large pinch of sceptical salt.

I'm immensely sceptical about assertions that various plants secrete
chemicals that inhibit growth of other plants. It's said about a lot of
different trees, and in a lot of cases, absence of growth can easily be
explained by shade, lack of moisture and impoverishment of the soil.

Hello K,

I agree that allelophathy -- the name for the process in question -- is
easily made a scapegoat for poor culture. None the less plant allelopathy is
a very well documented and researched area of botany. Are you
saying you "don't believe in it?"

cordially,

-E
--
Emery Davis
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