I have just joined you list because I am having a great deal of difficulty
finding any information on the web on ground nesting bumblebees.  We have
developed a large colony in the ground outside our back door.  I have tried
spraying but seem to be doing more damage to the herb garden then to the
bees.  I really don't want to kill them but would like them to find another
home.  Whenever we try to cover or fill their holes they just seem to
burrow other holes.  Our extension service told us we have to kill the
queen but they have no suggestions of how to do this.  Can anyone help me
with information about getting the bumblebees to find another home?  We
live in Rochester, NY.
Karen Florentine
[log in to unmask]