A Canadian study of native willow as an early pollen and nectar source for solitary mason bees and flower flies, both of which are significant pollinators for major fruit crops.
The horrors of mass-produced bee houses . Good primer on what’s a good design for mason bees and what isn’t, and why.
POLLINATOR BIOLOGY AND HABITAT New England Pollinator Handbook, November 2009, prepared by the USDA NRCS Maine, New Hampshire, Vermont, Connecticut, Massachusetts, and Rhode Island State Offices, the Xerces Society for Invertebrate Conservation’s Pollinator Conservation Program, and the University of Maine Cooperative Extension.
Wasps may be the biggest beneficiaries of “bee hotels” A 2015 Canadian blog article from “the hound”.
Growing and Marketing Woody Species To Support Pollinators (pdf post) A 12 page 2016 Forestry Service bulletin by R. Kasten Dumroese and Tara Luna.
Plants For Bees and Other Pollinators Univ. of Minnesota’s Center for Urban Ecology and Sustainability listing of flowers and forbs that provide sustenance for pollinators.
Raising native plants in nurseries: basic concepts | Treesearch (pdf) A 2012 U.S. Forest Service publication on propagating native plants.
