"Gill Matthews" account I no longer have
wrote snip
If the roots look chewed and less than you would expect and their are
white maggoty things in amongst them, you have vine weevils. Crush as
many as you see. If you are not organic there is a chemical called
provado which can be watered in and will kill the little blighters.
If you are organic conduct a careful search and squish You probably
won't get all of them but you could still get some decent results from
your bulbs. There is also a nematode which is I have found very
effective, but the weather is now too cold for the poor wee beasties
to work.

An alterative to squishing is put them on the birdtable for your robin
to feast on - they love them!

--
Sue