Suffolk County is planning ground spraying Wednesday, July 1, 2015,...

Suffolk County is planning ground spraying Wednesday, July 1, 2015, weather permitting, for adult mosquitoes on Fire Island, health officials said. Credit: Science Source Images

Suffolk County vector control is planning to spray area salt marshes Tuesday from 5 a.m. to 8 p.m. to target mosquito larvae, health department officials said.

The pesticide Altosid liquid concentrate is to be sprayed, weather permitting, over marsh areas by helicopter at a low altitude, officials said.

County officials said residents don't need to take precautions, any human exposure is unlikely, and the pesticide has "no significant human toxicity," officials said.

Spraying is to be conducted in areas of the towns of Islip, Brookhaven, Southampton, East Hampton, Riverhead and Southold.

The division of vector control can be reached at 631-852-4270.

University says hazing victim responsible for own injuries ... Sanitation truck enthusiast gets 4th birthday surprise ... Out East: Safe space for animals Credit: Newsday

Newsday Investigates: Girl was absent, late in half the school days in months before death ... University says hazing victim responsible for own injuries ... Crossing the Island in one day on public transportation ... Let's Go: Catskill Mountain Railroad

University says hazing victim responsible for own injuries ... Sanitation truck enthusiast gets 4th birthday surprise ... Out East: Safe space for animals Credit: Newsday

Newsday Investigates: Girl was absent, late in half the school days in months before death ... University says hazing victim responsible for own injuries ... Crossing the Island in one day on public transportation ... Let's Go: Catskill Mountain Railroad

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