Department of Health to spray mosquito larvicide in West Philly | Department of Public Health

PHILADELPHIA–Philadelphia Department of Public Health vector control personnel plan to apply larviciding for mosquito control early Wednesday morning, July 13, before dawn in West Philadelphia. See map below for specific locations.

This spray is part of a state-funded program to reduce the number of mosquitoes in areas that have had West Nile virus-positive mosquitoes in recent years, as part of ongoing mosquito control activities. multilayer mosquitoes. Each mosquito season, vector control services strive to reduce the number of mosquito larvae by treating sewer inlets and encouraging residents to empty standing water, monitoring mosquitoes positive for Nile virus west and occasionally spraying adult mosquitoes.

Video footage of the truck-mounted spraying carried out during the day is available on the Department of Health’s YouTube channel.

Certain species of mosquitoes carry the West Nile virus which, when transmitted to humans, can cause West Nile encephalitis and an infection that can lead to inflammation of the brain. Individuals are advised to take personal protection precautions to avoid being bitten by mosquitoes. Many mosquitoes are most active at dusk and dawn. Be sure to use insect repellent with an EPA registered active ingredient and wear long sleeves and pants at these times or consider staying indoors during these hours.

Homeowners can take a number of steps around the home to help eliminate mosquito breeding grounds, including:

  • Get rid of cans, plastic containers, ceramic pots or similar water-holding containers that have accumulated on your property.
  • Drain or dispose of discarded tires where mosquitoes breed.
  • Drill holes in the bottom of outdoor recycling containers.
  • Get clogged gutters cleaned. Gutters can produce millions of mosquitoes each season.
  • Flip plastic wading pools when not in use.
  • Return the wheelbarrows.
  • Do not allow water to stand in birdbaths.
  • Clean and chlorinate swimming pools. A pool left unattended by a vacationing family for a month can produce enough mosquitoes to cause a neighborhood-wide problem.

To avoid mosquito bites:

  • Make sure screens are tight on doors and windows to prevent mosquitoes from entering homes.
  • Wear long-sleeved shirts, long pants, and socks when outdoors, especially when mosquitoes are most active around dawn and dusk, or in areas known to have high 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, picaridin or lemon eucalyptus oil.

Consult a pediatrician or family physician about using repellent on children. (Repellent is not recommended for children under two months of age.)

For more information on West Nile virus and the state surveillance and control program, go to For questions about the West Nile virus program or to report mosquito infestations in Philadelphia, call 215-685-9000.


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