Mosquito Control Spray Announcement: Downstate Aerial Larviciding

March 19, 2026/Joe Ciccanti

Weather permitting; the Delaware Mosquito Control Section plans the following insecticide application for mosquito larvae located in flooded forested wetland habitats. This application could take place during the daylight hours between Friday, March 20th and Monday, March 23rd  (via helicopter (registration numbers N2268W and/or N862W). The application to control mosquito larvae will take place in Georgetown, Harrington and Woodside as well as near Blades, Dagsboro, Ellendale, Farmington, Felton, Fenwick Island, Houston, Milford, Millsboro, Milton, Rehoboth Beach, Ocean View, Seaford, Selbyville, and Viola. All insecticides to be used are registered with the USEPA for mosquito control and will be applied according to USEPA approved label instructions.  The USEPA has determined that the insecticides to be used do not pose unreasonable risks to human health, wildlife, or the environment. 

 

Additional Information from Mosquito Control:

Application of Vectobac12AS (liquid BTI) to control mosquito larvae

For notification purposes, spraying will be done in the following spray zones: 92, 99, 100, 107, 115, 116, 117, 124, 126, 138, 139, 150, 151, 154, 155, 159, 160, 163, 164, 170, 171, 176, 188, 189, 191, 200, 201, 202, and 203.

For further information, please visit the Mosquito Control Spray Information site or view the Spray Zone Map:

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