In article ,
wrote:

I have tried a couple of times to grow celeriac on my allotment,but each
time the roots are almost unusable due to woodlice boring into the roots
from below.

It's vanishingly unlikely to be woodlice. They are often found in
holes made by other pests, so get blamed, but their mouthparts are
not capable of gnawing holes in celeriac.

I thought that it was slug damage but I deal with slugs using slugbait
which leaves the area around like 'killing fields' for slugs-so they
work.

Against surface slugs. There are also subterranean ones.


Regards,
Nick Maclaren.