Bumble Bees are black and yellow and round in shape. They are pollinators and beneficial but often times nest in the wrong place. It is common for them to inhabit a rodent burrow made by mice, gophers or chipmunks. They are difficult to control and most insecticides don’t seem to work very well.

Most often times we can eliminate a bumble bee nest with a one time service.  However some do need multiple treatments.  Typically this is because they can have long runs before getting into the nest.  In this case 2nd treatments can typically be done at a reduced rate.

 

For more info check out the link below:

Wikipedia- Bumble Bees