Can the spraying/mosquito treatments be done early in the season in areas of hatching so the problem can be avoided?

NEMMC performs preventative treatment early in spring by larviciding and killing mosquitoes while they are still in their larval. ULV Adulticiding is only used to address adult flying mosquitoes. There are over 50 species of mosquitoes in Massachusetts, all hatching at different times, some of which carry different risk levels for transmitting virus. mosquitoes involved in virus transmission do not hatch until later in the season.