I'm from nc so I'm not sure about your flow but I have been putting out traps for 2 years and last year I caught swarms from the first of april and caught my last one on October 31. I had to combine some of the swarms I caught at the end of the year to make sure they made it through winter but I had decent size swarms during that time.
As long as you don't need the gear, let them be. I don't know your flow either, but I know in Florida there are swarms reported year round. I would venture to guess you only have a couple of down months there. There are times of greater flow than others, but as long as you are seeing things in bloom (even wildflowers/weeds on the side of the road or in fields) the bees have a nectar source.
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