Posted: 28/09/2015 at 08:26
Ah, vine weevils are the bane of the gardener's life, whereas woodlice are quite good chaps really, although as Verdun says, they probably nibble a few seedlings etc - they have to eat something don't they but not enough to make them a pest.
Adult Vine weevils eat notches out of the edges of leaves, like this
The adults look like this
The grubs live in the soil and eat the roots of plants - they particularly love plants in pots and primulas are a favourite, although they'll eat lots of others too. They look like this
Note the brown head and no legs.
I use nematodes to treat them and have had good success with quite a large border. Nematodes are the best way as they are specific to the vine weevils and don't kill beneficial creatures.
There are some pesticides which can be used in specific situations, but as they contain chemicals that harm beneficial insects like bees and ladybirds they're best avoided or used in carefully controlled situations.
This is the RHS advice re vine weevils https://www.rhs.org.uk/advice/profile?PID=234
Hope that's helpful