In message , Bob Hobden
writes
"David Hill" wrote ...

Just a thought
Do Slug nematodes have any effect on snails?


Do they have any effect of slugs? We tried them once, we bought a
seasons treatment and had to water them onto our potato bed every few
weeks, but unfortunately what they don't tell you before you buy is
that you have to keep the soil moist, impossible here as we aren't
allowed to use a hose on our allotment site and we also seem to be a
dry spot rain wise. So the result was £25 down and still slug damage.
Been cheaper to buy bags of organic spuds.

It does work, we used to have a dreadful problem with slugs in our Leeds
garden (on heavy clay, so quite damp) Since we moved down to
Cambridgeshire, - not the Fens, on a free draining gravelly soil,
whildt we still have slugs, they don't seem to cause us a much of a
problem really.

The nematodes did work, certainly reduced the slug problem, but not that
cheap - though we didn't use the full amount rcommended.
--
Chris French