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Fight the Bite!

The Carroll County Health Department and the Maryland Department of Agriculture are working together to conduct mosquito control activities in Carroll County.

Frequently Asked Questions about Mosquito Control Activities

Maryland Department of Agriculture Mosquito Control program

Read on to learn how you can Fight the Bite!

fight the bite

Mosquitoes in Maryland can be active any time of day. Some mosquitoes can carry diseases like West Nile and Zika (see below). Take steps to protect yourself, your family, and your community from mosquito bites.

Prevent mosquitoes from breeding:

  • Twice a week, empty any items that can hold water, such as flower pots, pet dishes, trash cans and lids, bird baths, and wading pools.
  • Clean your yard of small items that could collect water, like toys, bottle caps, and plastic bags. Mosquitoes can lay eggs in tiny amounts of water!
  • Look for and remove any water puddles or pooling.
  • If you have a septic tank, repair cracks or gaps. Cleanout pipes must be capped.
  • Clean gutters so water can drain.
  • Cover water storage containers, like rain barrels or cisterns, and repair cracks.
  • Drain boats twice a week; store small boats upside down.

To watch a series of short videos that show you how to prevent mosquitoes from breeding in your yard, visit the Maryland Department of Agriculture’s YouTube page.  

Prevent mosquito bites:

  • Use screens on doors and windows. Repair holes in screens.
  • Use air conditioning when available.
  • Use an EPA-registered insect repellent with approved active ingredients:
    • DEET
    • Picardin, also known as KBR 3023, Bayrepel, and icaridin
    • IR3535
    • Oil of Lemon Eucalyptus (OLE) or para-menthane-diol (PMD)
  • Always follow repellent label instructions. When used as directed, these repellents are safe for pregnant and breast-feeding women and children. 
  • If using sunscreen, put on sunscreen first, then repellent.
  • Wear long-sleeved shirts and pants. Light colors are best.
  • If you spend a lot of time outside, consider treating clothes and gear with permethrin or buying treated gear.

Use this tool to find the repellent that’s right for you.

repellent man photo

To protect your child from mosquito bites:

  • Do not use insect repellent on babies younger than 2 months old.
  • Do not use products containing oil of lemon eucalyptus or para-menthane-diol on children younger than 3 years old.
  • Dress your child in clothing that covers arms and legs.
  • Cover crib, stroller, and baby carrier with mosquito netting.
  • Do not apply insect repellent onto a child’s hands, eyes, mouth, and cut or irritated skin.
  • Spray insect repellent onto your hands and then apply to a child’s face.

For more information on mosquito control and mosquito bite prevention:

Mosquito Control

Mosquito Bite Prevention



Zika is a virus spread by mosquitoes. Most people who get Zika will have no symptoms, but Zika has been linked to birth defects, so pregnant women and their partners should avoid areas where Zika is spreading. The best way to avoid Zika and other diseases spread by mosquitoes is to avoid mosquito bites.

Zika is not currently being transmitted by mosquitoes in Maryland.

Visit our Zika page for more information.