In article ,
says...
A number of years ago I purchased some netting, from the internet, to
keep the pigeons off my raised beds, unfortunately I cannot remember the
supplier. It has lasted well, and is woven from a cotton type of thread
rather than any sort of plastic. I have decided that I would like to buy
some with a smaller mesh to keep the butterflies off. Can anyone please
help me with a source?

Try LBS http://www.lbsbuyersguide.co.uk/
--
Charlie Pridham, Gardening in Cornwall
www.roselandhouse.co.uk
Holders of national collections of Clematis viticella cultivars and
Lapageria rosea