A few years ago the horticulturist from the National Aquatic Gardens in DC
said that Roundup could be used to control lotus in a mud bottom pond. I
was always leery of this around ponds for fear of what it might do to the
fish. The link to the MSDS shows that it is nearly non-toxic, and the
overspray from the spraying would be diluted quickly.
http://www.mindfully.org/Pesticide/M...SDS25jan01.htm
An article about Ireland's control of reeds along canals and waterways, link
below, states that Roundup is one of only two herbicides used.
http://www.cfb.ie/research/aquatic_p...al_control.htm
It would appear that Roundup would be one method of taking care of your
cattail problem.
--
RichToyBox
http://www.geocities.com/richtoybox/pondintro.html


"Tony Brennan" wrote in message
...
Thanks for all your help on this one ... I'm not sure what I am going to
do
but they have to go! I guess I'll get something sorted soon enough. With
the suggestions I have received I should be able to come up with some way
of
getting rid of them.
"Tony Brennan" wrote in message
...
Grateful for any help on the problem of control cattails. I have a heap
of
them round the edge of my pond (natural) but I'm worried about them
taking
over. They seem to be spreading toward the middle.
Tony