Norfolk County Mosquito Control Project is overseen by the Board of Health. It starts in early April and runs until September. Check their web site at www.massnrc.org. or Click here for the 2011 Notice of Aerial Larval Control Application information. They have maps and information regarding the chemical being used and in what areas of Dover they are spraying on a weekly basis on their website. If you have a problem with mosquitoes contact the Board of Health office and we will arrange for your property to be sprayed by contacting Norfolk County Mosquito Control on your behalf. If you don’t want your property sprayed you must notify the Town Clerk’s office and fill out a no spray sheet. You must place tinfoil or white paper plates along your property on the date of spraying so that the helicopter knows not to spray your property.