Posted: 05/03/2013 at 16:02
I use nematodes - yes, they are a bit pricey but I use them just twice between spring (when its warm enough) and autumn. They are effective. I also occasionally use the odd sprinkling of organic pellets around new seedlings or valuable plants 'just in case'. Useage of nematodes does cut down numbers. I keep meaning to do the night patrols with a sharp pair of scissors (or a bucket of strong salt water) but never get around to it!