Posted on

Mosquitoes Swarm Central Florida

Most complaints are for large hordes of big, black mosquitoes that are vicious biters. They are just one of 40 different species in Central Florida, but they lay eggs in flood water. The recent heavy rains from a tropical system that passed over about two weeks ago means all the bugs are invading now.

Osceola and Seminole Counties are also seeing the same increase in calls about swarms of mosquitoes. re putting off the use of an airplane. But Seminole County says they do plan on starting aerial spraying overnight this weekend. Large trucks spray areas at night to kill adult mosquitoes, but new ones can return to the same area the very next night.

Because some mosquitoes can be very aggressive and fly 5-10 miles from where they hatch, Orange County recommends wearing repellant with DEET if you have to be outside around dusk or dawn. Don’t expect the recent cooler weather to help. The mosquito experts say night time temperatures need to fall into the 40s to slow them down, and be below freezing to completely kill off the pests.

Posted on

Attack of the Urban Mosquito

Mosquito

 

 

 

 

 

 

Interesting article in the Wall Street Journal:

  • Laura Kramer from SUNY Albany discusses why the Asian Tiger mosquito loves urban areas and how dangerous it really is.
  • The Asian tiger mosquito, named for its distinctive black-and-white striped body, is a relatively new species to the U. S. that is more vicious, harder to kill and, unlike most native mosquitoes, bites during the daytime. the urban mosquito.” says Dina Fonseca, an associate professor of entomology at Rutgers University.
  • Department of Agriculture effort to develop a cost-effective method to control the Asian tiger mosquito (Aedes albopictus) population.
  • Since urban areas tend to be warmer, often by 5 to 10 degreesthan rural areas, cities are seeing tiger mosquitoes earlier and sticking around longer, often into October, says Wayne Andrews, superintendent of the Bristol County Mosquito Control Project in Taunton, Mass.
  • The species has been traced to 1985, when a ship arrived in Texas loaded with used truck tires, perhaps from Japan, which is a major used-tire exporter, according to research by the Centers for Disease Control and Prevention.
  • Instead of marshes and natural bodies of water, both Asian tiger and rock pool mosquitoes can breed in small, artificial containers, such as tires, toys, cans and concrete structures, Dr. Fonseca says.
  • Weather patterns can help Asian tigers readily spread beyond the Northeast, says Andrew Comrie, a climatologist at the University of Arizona, meaning they can survive a cold, dry climate. All they need is exposure to water in warmer temperatures.
  • The Asian tiger was responsible for transmitting more than 200 cases of dengue fever, a sometimes-fatal viral infection, in Hawaii in 2001-02.
  • A similar (but less lethal) virus called chikungunya was transmitted in France and Italy, but no cases have been cited in the U. S. from the Asian tiger.
  • Likewise, the rock pool mosquito is capable of transmitting the West Nile virus, but no cases have been traced to the species in the U. S. , Dr. Fonseca says.
  • Also, the Asian tiger is a very visual mosquito, Dr. Fonseca says.

via: WSJ.com