The queens are fertilized in the fall and hibernate anywhere they want in the winter. The queens start to get active when the weather starts to warm and the cycles starts all over again. The rest of the nest dies with the colder weather. I have never had a customer complain of hundreds of yellowjackets this time of year. Sometimes they scream about a couple that come out of hibernation with this crazy weather. They should be pretty lethargic, just suck them up with a vacum. Will kill for plugs!
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