The city sprays for mosquitoes to reduce the potential spread of mosquito borne diseases. When spraying is required, the service will be performed on Friday nights, during the months of May through October. Spraying will begin each evening at approximately 9 p.m, and continue until the entire city has been treated. The City regularly uses an EPA - approved adulticide application called Kontrol 30-30 with a once a month rotational application of Fyfanon to combat chemical resistance.
In addition to mosquito spraying, the city treats drainage ditches and the storm sewer system (areas of standing water) with Environmental Protection Agency-approved Altosid briquettes. This is the most effective approach in reducing the mosquito population by preventing the mosquito larvae from becoming an adult mosquito. The larvacide program map shows the zones throughout Sugar Land that will be treated with Larvacide Pellets.