I was wondering what effect, if any, the spread of leafy spurge has had on
western US/Canadian beekeepers.  This plant, Euphorbia esula, has
extensively colonized a huge area in a short time.
 
I have heard that the honey from it has an unpleasant, "green" flavor.  I
would like to hear of other's experience with honey quality.  However, I am
even more interested to learn if there might be some suspected adverse
effects on the colony health.  Although not listed as a plant with toxic
pollen (such as the recent discussed California buckeye), other Euphorbia
species are listed as being among those that are known to be poisonous to
honeybees.
 
Whitney Cranshaw
Ft. Collins, CO
USA