In a message dated 2/6/01 2:17:04 PM Pacific Standard Time,
[log in to unmask] writes:

<< Does anyone have experience of mason bees (Osmia spp)? I'm aware that trap
 nests are commercially available, and that they can be used for
 pollination. I'm interested in using them at an urban site in the UK, and
 I'd be grateful for any pointers. >>

   There's lots of resources at:  http://pollinator.com/alt_pollinators.htm

Dave Green
The Pollination Home Page:  http://pollinator.com