A highly-targeted approach for the control of yellow fever mosquito infestations in Southern California.

Vector control will release non-biting, male yellow fever mosquitoes (Aedes aegypti) in a localized area of East Los Angeles. These male mosquitoes are dusted with a small amount of an insect growth regulator (IGR) called pyriproxyfen, which prevents mosquito larvae from maturing to adults.

The released males will mate with wild female yellow fever mosquitoes in the infestation zone and transfer some of the dust to the female in the process. When the treated female lays her eggs in water-holding containers, she deposits some of the dust into the water. Larvae will hatch from the eggs, but the offspring will not survive.

Dusted male mosquitoes will also transfer the IGR to water sources they visit. This pilot program will determine how effective this novel strategy will be in the District’s overall Invasive Aedes Mosquito Control Strategy.

Learn more about pyroproxyfen HERE

Download the PDF of the Targeted Yellow Fever Mosquito Control Fact Sheet HERE.

Click here to read the Program Overview