David, I forgot to mention the Xerces study was restricted to the US, but I'm sure similar numbers would be found elsewhere. Bulb related? Sure, onion seed and other alliums grown for seed are pollinated by a number of managed and wild pollinators. Surely where bulbs are open pollinated for seed there is a reliance on native pollinators and predatory insects keeping the number of aphids in your garden low (and if you have an infestation I'd expect a deficiency of insect predators/parasitoids in your area). The PBS seed exchange is surely possible due to native pollinators where the bulbs are grown outside. Not that any of this is being contested. Travis Owen Rogue River, OR http://www.amateuranthecologist.com/ http://www.oldsolbees.com/ http://www.pacificbulbsociety.org/