Well it's been a pretty cold early winter here in the north GA mtns. But we needed at least three days in a row of 32deg and below to start killing the insects hibernating. Living and working in Jersey since 1984 and then moving to Fla for 28 years ,working out doors I finnaly found my happy comprise by moving in between those areas to my GA mountians. No black nasty snow here or hot humidity. And no mosquitos most of the year,lol.