Heard from a bk down in lower FL that he's got maple pollen coming in, but your way north, maybe you never really had a killer frost & some plants are doing a second blossoming.
IMO, it's too early for pollen parties down there, they're for stimulating brood rearing, it isn't even the winter solstice yet and you still can get a cold snap or two. I'm sure somebody down in your neighborhood will be online sooner or later.
Here's my 2cents on fumagilin, it's a treatment and I don't treat unless I'm absolute 100% certain that it's necessary.
I just saw a news blip on chicken having 6 different strains of bacteria that are restistant to antibiotics, they figure that it's because of the antibiotics that they are given as a preventative measure, that certainly sounds like a treatment merry go round to me!