Hi Gail,
   I have NEVER seen a bumblebee at any of my hummer
feeders.  As for the honey bees - they are also another 
nonnative species anyway that have their own troubles 
because of careless beekeeping techniques.
   You are not going to get rid of yellow jackets or hornets
without good offensive fighting tools that are perfectly
harmless to the invited guests.
With best wishes,
Lance
--- On Fri, 8/8/08, Gail B. Mackiernan <> <> wrote:

From: Gail B. Mackiernan <> <>
Subject: Re: [MDOSPREY] hummingbirds vs wasps
To: 
Date: Friday, August 8, 2008, 7:25 PM

While these insecticide-containing guards protect against ants and wasps, they
also kill honeybees and bumblebees (as well as other native bees) which might
visit the feeder -- & all of these bees are in big trouble! So no sure if
this is really a environmentally-sound solution.

We have had little trouble with our two feeders this year since we also have a
lot of flowers in bloom as well as fallen fruit from apples and cherries --
maybe the wasps prefer these?

Our major hassle is a sudden increase in hummingbirds (which are starting to
migrate) and one-two very aggressive individuals which try and dominate the
whole area. "Share" is NOT a word in the hummer vocabulary!

Gail Mackiernan
Colesvile, MD

 -------------- Original message ----------------------
From: lance biechele <>
> Hi Kathy,
>    You may want to try "Perky Pet" AntGuards.  They contain
> the insecticide Permethin which should be effective in repelling
> wasps.  
>    I have hust started to use them this year with grand results!
> Hope this helps,
> Lance
> 
> 
>       
>