Mosquito Spraying in Delaware

The Mosquito Control Section uses a Spray Zone Notification System to let residents know when and where they plan to apply pesticides to control mosquito populations.

The Mosquito Control Section has divided the state into numbered spray zones. These numbered zones will be identified on a daily basis when spray activity is planned within a particular zone. Note: Zones identified to be sprayed only indicate that spray operations are planned within that area, not that the entire zone(s) will be sprayed.

An online Spray Zone Map is updated each day (by 4:00 p.m.) to identify zones where spray activity is scheduled.

Residents can use the map to see where spraying is planned. They can also sign up for notification, by text, phone call or email, of upcoming spray activities in any zone.

Residents can also check the Mosquito Control Spraying Calendar for information on planned spray applications.

Using the Spray Zone Map

First, Find Your Zone

Use the Spray Zone Map to identify which zones you want to be notified about. You can pan, zoom and browse. Or enter an address to get right to your zone.

There is a Spray Zone number at the center of each spray zone box on the map. This is the number you’ll need to set up your notification.

Next, Register for Notifications

The Spray Zone Notification System uses the Delaware Notification Service to send out texts, phone calls and e-mails.

If you haven’t already registered for one of the many other notifications offered by the state, you will need to set up an account. It’s easy. Simply click on “Sign Me Up!” to create an account.

You’ll create a username and password and choose from various options about how you want to get your notifications.

Now, Select Your Notifications

Once you have registered, select “subscriptions” to manage your notifications and choose the drop-down arrow next to “DNREC – MOSQUITO CONTROL” select which zones you want to be notified about. You can also select “Mosquito Control Statewide Spray Announcement” to be notified of all spray activities statewide.

Learn more about registering for notifications with this handy user’s guide.