"pied piper" wrote in message
...

"Kay" wrote in message
...
In article , pied piper
writes


it only acts as a deterent to the casting worm which is of no benefit to
your rootzone


Can you explain that a little further?

The species of worm that leave casts on the surface burrow vertically,
aerating the soil. Can you explain the mechanism by which you avoid the
casts without disrupting the vertical burrowing? Do you mean that it
deters the worm from casting? Or it deters the species of worm that does
the casts?

Are you saying that this substance acts as a deterrent to one species of
worm but not another?
--
Kay
"Do not insult the crocodile until you have crossed the river"

It deters the worm from surfacing thus leaving no casts and worms burrow
both vertically and horizontally.
The aeration they provide is minimal and of no real benefit to the average
garden lawn.

Worms are important for what they do for soil fertility, they eat organic
matter (which they tend to find on or near the surface) and like all
herbivores such as cows and horses, once they have eaten it they discard the
waste out t'other end. since land will support a greater weight of
invertebrate life than vertebrate animals it follows that they are of
greater importance to the well being of soil and its fertility. and you do
not have to go and fetch the stuff! that they also aerate soil was also not
in dispute until this thread started :~)
--
Charlie, gardening in Cornwall.
http://www.roselandhouse.co.uk
Holders of National Plant Collection of Clematis viticella (cvs)