Hi Rossy,
the best method is catching the overwintering queens of the yellow jackets
early at the beginning of the year. So you avoid a lot of yellow jacket hives
nearby to your beeyard.
 
If you want to fight at the end of the season it is more difficult. Here in
Germany some kinds of baits are on the market.
 
You can also make one by yourself. Take a champagne bottle with a dent in
bottom.
Fill in an attractive smelling liquid with candy but add some vinegard to
repell bees, which don't like that smell.
Good luck!
 
Reimund S.
______________________________
Beekeeper in Germany (Bavaria)
Queen Rearing of Carniolan Bees
Insemination Station
______________________________
 
Rossy Castillo schrieb:
 
> Hi:
>
>                Does anybody know a GOOD method of keeping yellow jackets
> out of my nucs?
> I have to "harvest"  300 queens , there is no nectar flow, there is some
> robbing  because our season is almost over. I avoid robbing for three or
> more hours  placing a common feeder (a drum with syrup). The bees go to
> feed and do not disturb me when I open the nucs to pick up the queens but I
> need to be sure to keep the yellow jackets a couple of hours away. I know
> some beekeepers make  baits.  Any idea ?
>
> Thanks
>
>    Rossy Castillo
>
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