Aerial Spraying to Target Large Numbers of Nuisance Mosquitoes


The West Umatilla Mosquito Control District (WUMCD) and the North Morrow Vector Control District (NMVCD) will be conducting targeted aerial mosquito control spraying with a twin engine airplane after sunset on Tuesday, June 1, weather permitting.

The application will be done the next day if there is a weather delay. The spraying is in response to a large hatch of mosquitoes impacting areas in both Western Umatilla County and Northern Morrow County.

Randy Gerard, manager of the WUMCD, said a total of 10,000 acres will be targeted in the Highway 730 area between Umatilla and Irrigon, and also around East Spearman Road.

For more information, contact the WUMCD at 567-5201 or the NMVCD at 541-481-6082.

Here are some suggestions to reduce the risk of exposure to mosquitoes:

  • Get rid of old tires and other containers where water can accumulate and serve as a breeding ground for mosquitoes.
  • Flush or replace the water in horse troughs weekly.
  • Be sure to flush or add mosquito fish to ornamental ponds.
  • Avoid outdoor activities at dusk and dawn when mosquitoes are most active.
  • Wear long-sleeved shirts and long pants when in mosquito infested areas.
  • Use mosquito repellents containing DEET, making sure to follow the directions on the container.
  • Screen doors and windows.
  • Report mosquito infestations to the West Umatilla Mosquito Control District (541) 567-5201 or the North Morrow Vector Control District for Morrow County residents (541) 481-6082.