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["Vance Wilson" <vancewilson@gmail.com>]

Ah yellow jackets—something I know enough about to provide value to the group.  Traps are great, if used early in the season.  By the time yellow jackets become a real nuisance, however, you cannot trap enough of them to make much difference.  At that point you need one of two very effective dust agents called Drione dust and Delta dust.  These are described at: http://www.pestproducts.com/yellow_jackets.htm

 

In my experience, sprays just don’t work well for yellow jackets. You’ll need to acquire a dust dispenser along with the chemical agent.  One application (in the middle of the night to avoid risk of stings) is all it takes to close down the nest.

 

Vance Wilson

Plymouth, WI, Zone 5A