Mosquito Abatement Notice

Important Notice

Due to an increase in mosquito activity this season, the San Gabriel Valley Mosquito Abatement District has been diligently trapping mosquitos throughout the valley and testing for the presence of the West Nile Virus. On Tuesday, July 26, 2016 the San Gabriel Valley Mosquito Abatement District notified The Office of Environmental Health and Safety that three of the several traps recently placed on campus were tested and confirmed the presence of West Nile Virus in small amounts.


In response to these recent findings, the San Gabriel Valley Mosquito Abatement District will be posting notices in various areas of the campus to remind the campus community as well as the general public to take simple precautions to protect against mosquitos which includes wearing protective clothing, applying mosquito repellent as needed and eliminating or reporting standing water. A Mosquito Abatement Technician who is familiar with the campus will be addressing areas of concern, primarily where standing water has been identified in an effort to eliminate mosquito breeding in these areas.


To best protect the campus community, I am requesting your cooperation to help identify and eliminate the mosquito breeding locations in your areas by designating an individual from your department to conduct inspections twice each week aimed at identifying and eliminating stagnant pools of water in areas under your control.  Stagnant pools where mosquitoes can breed have been found in, but may not be limited to the following areas:


  • Pastures
  • Fields
  • Greenhouses
  • Fountains/Ponds
  • Stream Beds
  • Animal Water Troughs
  • Animal Mud Holes
  • Drainage Systems

Stagnant pools can be prevented by:

  • Avoiding over watering of crops and pastures;
  • Removing low spots in pastures and lawns;
  • Eliminating leaks in irrigation and animal watering systems;
  • Drying out animal mud holes twice each week;
  • Flushing out animal water troughs twice each week;
  • Preventing a buildup of leaves in water sources;
  • Stocking mosquito eating fish in ponds.


If you find any evidence of active mosquito breeding or have concerns of standing water, please notify the San Gabriel Valley Mosquito Abatement District at (626) 814-9466 and Environmental Health & Safety at (909) 869-4697.


If you have any questions or concerns you may contact Environmental Health & Safety at extension 4697 or via email at Please circulate this notice to others as deemed appropriate.