Mosquito-borne Disease

Berks County Mosquito-borne Disease Control Program surveillance and control activities run from April through September each year.

Click below to read our Mosquito Update Letter for the 1st two weeks of June!

Late July Early August Update Letter

Click here to locate the current West Nile Positives in the state.

The Mosquito-Borne Disease Control Program is designed to reduce the risk of WNV and uses an Integrated Mosquito Management (IMM) strategy that includes education, surveillance, mosquito habitat reduction, natural controls, and application of larval and adult mosquito treatments.

How Can I Help?

  • Remove old tires from your property
    • If you are unable to remove unusable tires, holes can be drilled so that water can leave the tires.
  • Change water in outdoor areas
    • Birdbaths, plastic wading pools
  • Dump water from outdoor areas
    • Wheelbarrows, Recycling bins, planters
  • Prevent puddles from forming
  • Avoid throwing organic material in catch basins
  • Keep swimming pools chlorinated
  • Report areas with high levels of stagnant water


Any questions regarding the Mosquito-Borne Disease Control Program in Berks County can be directed to the Program Coordinator at 610-372-4657 Ext. 218.   


Mosquito traps are set at over 150 sites across the county, including wastewater treatment plants, storm-water basins, recreational areas, and private residences. Samples are processed and species are identified, and vector species are tested for West Nile virus. To suppress populations of both vector and nuisance mosquitoes, technicians reduce mosquito habitat when possible. Larvicide and adulticide products are used after all other measures have been taken.

The following products are most commonly used by Mosquito-Borne Disease Control Program staff:

Altosid XR Briquet
Vectobac GS
Vectolex FG
Vectolex WSP

For more information on the pesticides that we currently use, please watch this short video.

Dead Bird Monitoring

Due to the rise and spread of the Avian Flu in Southern Pennsylvania, please report dead birds by clicking the following link : Dead Bird Reporting Form 

Birds can be collected for WNV testing, from May 1 through October 1. If you are interested in submitting a dead bird for testing, call your Mosquito-Borne Disease Control Program Coordinator to see if they are still accepting submissions and for instructions on how and where to submit.

  1. Only crows, jays, hawks, and owls are accepted for WNV testing.
  2. Birds must be dead less than 48 hours with no obvious signs of trauma.
  3. Place ice packs on top of bird and place a bucket over it, until it can be submitted. Do not freeze the specimen.
  4. Avoid bare-hand contact when handling dead birds. Use rubber gloves when handling a dead bird. If you do not have gloves, insert your hand into a plastic bag, grasp the bird carefully and invert the bag over the bird. Each bird should be placed in a tied plastic bag, and then placed inside a second tied bag.
  5. If you are not submitting the bird for testing, the bagged bird can be placed in the trash.

Source: Crow (  Blue Jay ( Owl (

jaycrowBroadwing ventral

For more information regarding WNV, dead bird reports, and pesticide use, check out some of these helpful websites:

PA DEP West Nile Virus Control Program

PA Department of Health 1-(877)-PA-HEALTH (724-3258)

Penn State Pesticide Education Program

Center for Disease Control West Nile Virus

American Mosquito Control Association

Center for Disease Control Zika Virus


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