Understanding the Product We Use

Beginning in 2019, Franklin County Public Health will be using Merus 3.0 which is a natural botanical pyrethrin, is Organic Materials Review Institute (OMRI) listed, and can be applied in and around organic gardens, farms and crops. The EPA defines pyrethrins as, “botanical insecticides derived from chrysanthemum flowers most commonly found in Australia and Africa.” There are no other additives or chemicals added to Merus 3.0.

Effective July 10, 2019, Franklin County Public Health will use Duet on a short-term basis to control the floodwater mosquitoes that have hatched following all the rain.  Duet uses sumithrin, a synthetic version of the active ingredient of Merus. Duet adds a synergist and an ingredient that causes resting mosquitoes to take flight, enabling increased efficacy.  Once we have better control of the mosquito population, we will switch back to using Merus 3.0.

Learn about Duet.