David Hill wrote:
Went to have a look at my Runner beans this morning and around 20 ft of
them have been wiped out.
What I assume to be a squirrel has cropped them from around 6 inches to
around 15 inches, also chewed the netting as well.

Giant slugs.

Giant slugs that chomp plastic?
Now they would be worth money.

Giant mutant slugs with metal teeth