West Nile Virus Identified in Mosquito Pools in Chester County

English: The proboscis of an Aedes albopictus ...

West Chester, PA – The Chester County Health Department is informing residents that mosquito traps collected in the following townships have tested positive for West Nile Virus (WNV):

  • Birmingham Township
  • Schuylkill Township
  • Thornbury Township
  • Upper Uwchlan Township
  • Uwchlan Township

These reports are the first positive mosquito traps identified in Chester County for the 2013 season. The mosquito traps were placed in various locations in the County as part of routine surveillance by Health Department officials. The Health Department will continue to monitor these areas as well as surrounding areas and will consider control activities when appropriate.

The chance of contracting WNV from an infected mosquito is small and chances of becoming seriously ill are even smaller, however, the Health Department recommends that individuals take personal precautions to minimize the possibility of being bitten by infected mosquitoes. This includes staying indoors at dawn or dusk when mosquitoes are most active, wearing long sleeve shirts and long pants when outside and using insect repellents when mosquitoes are active. The heightened concern will probably remain until the first frost which usually occurs in mid-October.

Residents are encouraged to take the following precautions to reduce mosquito breeding on their property:

  • Dispose of open containers that may collect water, such as tin cans, plastic containers, ceramic pots, etc.
  • Drill holes in the bottom of outdoor recycling containers so that water will not collect.
  • Keep your property clear of old tires.
  • Clean roof gutters, particularly if leaves from surrounding trees have a tendency to plug drains.
  • Turn over plastic wading pools when not in use.
  • Turn over wheelbarrows and don’t let water stagnate in birdbaths.
  • Aerate ornamental pools or stock them with fish.
  • Clean and chlorinate swimming pools when not in use. A swimming pool left untended by a family on vacation for a month can produce enough mosquitoes to result in neighborhood-wide complaints.
  • Mosquitoes may even breed in the water that collects on pool covers.

For stagnant pools of water that cannot be removed or drained, homeowners can buy Bti products such as mosquito dunks at lawn/garden, outdoor supply, home improvement and other stores. This naturally occurring bacterial product kills mosquito larvae but is safe for people, pets, aquatic life and plants.

~ News Release via Chester County Health Department ~

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5 responses to “West Nile Virus Identified in Mosquito Pools in Chester County

  1. There are companies out there that can spray an all natural solution around your property to keep the mosquitoes from attacking.

    http://boston.cbslocal.com/2013/07/09/wet-june-means-banner-year-for-states-mosquito-population/

  2. I had a friend that went out in his back yard to bird watch and got bit, got sick and died from West Nile Virus. That was in 2001! And it was in Parkesburg on E. 2nd Ave.

    • The borough sprayed the town last year, and it may have worked. Most people were asked to dump out any water sitting in buckets and stuff to reduce the mosquito population. Are you attending the next borough meeting? Ask them if they are spraying this year.

    • I wonder if the recent drop in temperature will help cutting the mosquito population.

  3. If you remember last year I brought in pictures of old tires that were sitting across the street from my house on 4th Ave. in that patch of woods behind the garage. Everyone that looked at the pictures (I guess) thought it was a good idea to get it cleaned up. We offered to clean it up, my husband has a trailer and we could have cleaned it up and taken it away FOR FREE. I guess you know the answer was no! I haven’t looked this year yet because it was so grown over and I get poison ivy but I’ll go over and check it out for myself. I don’t know about the temperature though, I was thinking maybe after the first frost but I’m not sure about that.

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