Mosquito spraying set for Lancaster County on August 20

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Mountville, Pa. — The Department of Environmental Protection will conduct a mosquito control operation to reduce high populations of mosquitoes on August 20, 2015, in in portions of West and East Hempfield Townships and Mountville Borough, Lancaster County.

The treatments will be administered via truck-mounted equipment, spraying residential mosquito habitats. The equipment dispenses Biomist 3+15 applied at a rate of 1.5 ounces per acre.

These products are designed to provide quick, effective control of adult mosquito populations. The application materials have a very low toxicity profile to mammals and are safe for the environment.

Certain mosquito species carry the West Nile virus, which can cause humans to contract West Nile encephalitis, an infection that can result in an inflammation of the brain. According to the Pennsylvania Department of Health, all residents in areas where virus activity has been identified are at risk of contracting West Nile encephalitis.

So far in 2015, West Nile virus has been detected in Adams, Allegheny, Beaver, Berks, Blair, Bucks, Butler, Cambria, Carbon, Centre, Chester, Clinton, Columbia, Cumberland, Dauphin, Delaware, Erie, Franklin, Jefferson, Lackawanna, Lancaster, Lawrence, Lebanon, Lehigh, Luzerne, Lycoming, McKean, Monroe, Montgomery, Montour, Northampton, Northumberland, Perry, Philadelphia, Schuylkill, Snyder, Union, Venango, Warren, Westmoreland, and York counties.

Weather conditions and other unexpected events could delay or cancel this spray operation. If conditions do not allow application on August 20, 2015, August 24 will serve as the back-up spray date.

Individuals can take a number of precautionary measures around their homes to help eliminate mosquito-breeding areas, including:

  • Dispose of cans, buckets, plastic containers, ceramic pots, or similar containers that hold water.
  • Properly dispose of discarded tires that can collect water. Stagnant water is where most mosquitoes breed.
  • Drill holes in the bottom of outdoor recycling containers.
  • Have clogged roof gutters cleaned every year as the 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 not in use and remove any water that may collect on pool covers.

If a resident has stagnant pools of water on their property, they can buy Bti products at lawn and garden, outdoor supply, home improvement and other stores. This naturally occurring bacterium kills mosquito larvae, but is safe for people, pets, aquatic life and plants.

Additionally, these simple precautions can prevent mosquito bites, particularly for people who are most at risk:

  • Make sure screens fit tightly over doors and windows to keep mosquitoes out of homes.
  • Consider wearing long-sleeved shirts, long pants and socks when outdoors, particularly when mosquitoes are most active at dawn and dusk, or in areas known for having large numbers of mosquitoes.
  • When possible, reduce outdoor exposure at dawn and dusk during peak mosquito periods, usually April through October.
  • Use insect repellents according to the manufacturer’s instructions. An effective repellent will contain DEET, picardin, or lemon eucalyptus oil. Consult with a pediatrician or family physician for questions about the use of repellent on children, as repellent is not recommended for children under the age of two months.

For more information about West Nile virus and the state’s surveillance and control program, please visit www.westnile.state.pa.us.