Yellow jackets are a pain when eating outdoors, and the European ones are alien to North America, I've seen traps like this near outdoor restaurant patios. Look up RESCUE W.H.Y yellow jacket trap on Google. From what I see the version sold in western Canada is a different version from eastern Canada. The western Canada one looks different from the one in your picture, which looks like the eastern version. Perhaps the attractant is different. Canadian Tire, Walmart etc. list them. If it really is bees you want to trap then I don't think you'll find anything like this because most people would not want to.
According to this article the yellow jackets that come out towards fall in Vancouver (where the OP is) are the kind that are aggressive and sting and are not pollinators:
http://www.vancouversun.com/he...
