I have a neighbor whose 2 hives were robbed out last fall. The yellow jackets will fly at lower temps than the bees and attack when the bees are confined due to low temps. I know this is months away.
I saw many rumbles at the entrances to my hives last year. I put a yellow jacket trap about 15 ft in front of my 2 hives and caught many of the yellow jackets. Smacked many with a fly swatted too. If your population is down reduce your entrance to make it is easier to defend. You can also add a pollen patty which should help them feed the larvae. You want the late season bees to be well fed so they can raise really healthy winter bees to better survive the cold.
Trapping yellow jackets early in the season this year, They are all queens in the early season, has greatly reduced yellow jacket around my hives this year.
Fabian
I saw many rumbles at the entrances to my hives last year. I put a yellow jacket trap about 15 ft in front of my 2 hives and caught many of the yellow jackets. Smacked many with a fly swatted too. If your population is down reduce your entrance to make it is easier to defend. You can also add a pollen patty which should help them feed the larvae. You want the late season bees to be well fed so they can raise really healthy winter bees to better survive the cold.
Trapping yellow jackets early in the season this year, They are all queens in the early season, has greatly reduced yellow jacket around my hives this year.
Fabian