I used to have that problem, along with mold and voles, and almost
stopped mulching. But now I am mulching again, in parts thanks to
draining my soil. However I don't have the worst kinds of slugs here.
I would say that if conditions are moist and slimy under the mulch,
it is too thick. I don't think one should strive for mulch thick
enough to suppress all weeds. Also a mulch layer of an inch or two
(2.5-5 cm) can do much good. Allow some weeds. The slugs may prefer
to eat them.
Another factor could be layout. I assume you are gardening. Do you
have one field or larger plot entirely mulched, or mulched beds with
grass (including herbs/weeds etc) between? I think the latter would
be preferable, for a more diversified system.
I cannot tell whether mulching at all is the way to go in your rainy
climate. Perhaps companion plants would be better. I have annual
precipitation around 550-600 mm. And friend of mine has perhaps the
double and mulches successfully. He uses medium thick mulches, 5-10
cm (2-4 inches). Both I and he has colder climate than you.
Anders Skarlind, Sweden
At 10:32 2008-08-01, you wrote:
>My problem with deep mulch - growing annual vegetables on a garden
>scale - has been slugs. They love the warm, moist conditions but
>prefer the soft growing tips of young plants to the decaying mulch
>This year, I tried Emilia's method of planting more mature plants
>raised in pots but the only change was fatter slugs!
>How do others with this problem tackle it?
>My first post here after lurking and learning for several months. l'm
>in Western England, near Wales with plenty of rain.
>Still searching for a synergistic agriculture forum.....