Though there have been a few cold snaps in the Oldsmar area, it has been a very warm winter. While some people may enjoy this weather, it always leads back to the problem of parasites not being frozen out. It takes temperatures as low as fifty degrees to force mosquitoes into hibernation.
The truth is is that only severe cold, for long sustained periods of time will kill all mosquitoes and their eggs. Florida is too far South to keep the daily high daily temperatures below freezing for more than just a couple of days, especially as the yearly temperatures seem to be steadily increasing.
To deal with the cold that will kill an adult mosquito, female mosquitoes lay their drought-resistant eggs in protected areas. The eggs are resistant to the cold and being frozen. They lie in wait for extended daylight, warmer temperatures, and the presence of standing water that will come with the thaw of Spring temperatures.
Adults can survive the winter, too, in the right situations. The northern house mosquito uses a hibernation system known as diapause . After fall mating, females consume nectar (instead of blood) to build reserves of fat. This will keep them through the winter months They look for basements or eaves of buildings, sewers, logs, or holes in the ground. Place that will not completely freeze, in which to keep themselves protected in the winter.
So when spring does come around , and you need to control the population, make sure to Tip the water from standing pots. Toss out trash and leaves that create moist spots. Tarps need to be tight over firewood or boats. Turn over toys, canoes, or items.
Treat your backyard, if these other measures fail to control these itchy, and nasty pests.