A new environmentally-safe and pesticide-free approach for the control of Asian tiger mosquito infestations in Southern California.
Beginning late June until the end of this season, Vector Control will release sterile male Asian tiger mosquitoes (Aedes albopictus) in a localized area of South El Monte. We will release approximately 5,000 male tiger mosquitoes throughout program area twice weekly.

Male mosquitoes do not bite and will mate with female tiger mosquitoes in the infestation zone. Eggs laid by these mated female mosquitoes will be sterile and will not hatch. The males will die soon after mating. This program will show how well the control strategy can contribute to our overall Asian tiger mosquito control program.

This technique will only target the Asian tiger mosquitoes.

Sterile Male Tiger Mosquito Program Release Site Map

Resident Notification:

All residents in, within and immediately adjacent to the pilot program area have been notified by mail or by our staff in the field. If you were not contacted or did not received a letter from us, you are not in the treatment area.

Resident Participation:

We, along with the County of Los Angeles Department of Public Health, presented at a town hall meeting in South El Monte on June 15, 2015. The Asian Tiger Mosquito Health Forum focused on the infestation that affects the residents and our efforts to control the invasive mosquito population.

Sterile Male Tiger Mosquito Fact Sheet

Download a PDF of the Sterile Male Tiger Mosquito Fact Sheet (English, Spanish, Chinese and Vietnamese)

Click here to read the Program Overview