The Suffolk County Department of Public Works is planning aerial application of the pesticide Anvil (sumithrin) in sections of Manorville and Calverton tonight to control the breeding of adult mosquitoes.

The treatments are in response to the confirmation of mosquito samples that have tested positive for Eastern Equine Encephalitis virus, the county health department said in a press release.

EEE virus is a rare cause of brain infections (encephalitis). Only a few cases are reported in the United States each year, according to the Centers for Disease Control. Most occur in eastern or Gulf Coast states. Approximately 30% of people with EEE die and many survivors have ongoing neurologic problems.

For information on symptoms and treatment of EEE visit the Centers for Disease Control website.

The pesticide application is scheduled to take place from 7 p.m. to 12 midnight.

The approximate location(s) of the application in Manorville-Calverton are from River Road/Grumman Boulevard to South River Road and the Long Island Railroad tracks extending from Princeton Avenue to Railroad Avenue.

The health department said the chances of human health effects from spraying are “quite low,” but recommended residents take certain steps to reduce possible exposure to pesticides before, during or after spraying.

Children and pregnant women should take care to avoid exposure when practical.

If possible, remain inside or avoid the area whenever spraying takes place and for about 30 minutes after spraying.

Close windows and doors and close the vents of window air-conditioning units to circulate indoor air or, before spraying begins, turn them off.

Windows and air-conditioning vents can be reopened about 30 minutes after spraying.

If you come in direct contact with pesticide spray, protect your eyes. If you get pesticide spray in your eyes, immediately rinse them with water.

Wash exposed skin. Wash clothes that come in direct contact with spray separately from other laundry.

Consult your health care provider if you think you are experiencing health effects from spraying.

Pick homegrown fruits and vegetables you expect to eat soon before spraying takes place. Rinse homegrown fruits and vegetables (in fact all produce) thoroughly with water before cooking or eating.

Bring laundry and small toys inside before spraying begins. (Wash with detergent and water if exposed to pesticides during spraying.)

Bring pet food and water dishes inside, and cover ornamental fishponds during the spray period to avoid direct exposure.

Residents with questions about Eastern Equine Encephalitis virus should contact the Suffolk County Department of Health Services’ Public Health Hotline: 631-787-2200.

For current and future notices and/or further information about mosquito control contact: Suffolk County Division of Vector Control 631-852-4270 Spraying Information Hotline 631-852-4939 or visit the county health department website

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