On 05/03/2012 18:08, John Price wrote:
Hi

After Googling around various lawn sites I went to some garden centres
looking for some iron phosphate to kill moss in my lawn, ahead of
scarifying in April. Couldn't find any in the lawn product sections,
mosskiller for lawns always seems to be sold mixed in with lawn feed.
But came across some being sold as a soil conditioner and feed.

What I can't find though is an application rate for use in the way I
have in mind.

Can anyone advise please - or could I just use the proprietry "feed and
weed" lawn products?

ITYM Ferrous ammonium sulphate usually cut with sand as "lawn sand" or
if it includes a broadleaf weedkiller as well "weed and feed".

Iron phosphate would be pretty insoluble, but Organic(TM) growers
apparently do use it to kill slugs and snails.

Be warned that any of these will iron stain paths and concrete.

--
Regards,
Martin Brown