I had noticed that my hive has been rather feisty as of late and was
perplexed until I opened my hive the other day and was attacked by a
yellow jacket!
I looked inside for evidence of bee slaughter, and found a couple of dead
bees with their abdomen removed. What can I do to beat off these pest
before winter sets in (I'm up in Vermont, so I have less than a month to
the first frost in my area. Some regions have already had a frost) and
shore up the colony.
 
Should I feed the hives to help the recoup from these attacks?