Bumblee Bee won't leave deck

Mine appears to be a carpenter bee since they bore holes in wood.

http://www.ca.uky.edu/entomology/entfacts/ef611.asp

 

There's a insecticide on the market by Bayer called Drione for treating wood boring bees. It's very effective but still a poison. Once you find the holes you blow the powder into the hole to kill the eggs/larvae and prevent the adult from returning and causing further damage. If not caught, the damage can be very extensive.

We discovered a hole by seeing the sawdust on top of the lawn mower cover. It appeared to be made by a drill!

 

Here is some information concerning this.

Instead of killing them, perhaps it would be better to just treat the wood (which should be done anyway)

http://ohioline.osu.edu/hyg-fact/2000/2074.html

Let's not kill the bees unless it is absolutely necessary.