Insect Growth Regulators. Insect growth regulators (IGRs) are insecticides that mimic hormones in young insects. They disrupt how insects grow and reproduce. IGRs can control many types of insects including fleas, cockroaches, and mosquitos. Although they are rarely fatal for adult insects, they can prevent reproduction, egg-hatch, and molting from one stage to the next.
Woodford County Journal - Woodford Star, Eureka, IL. 1,315 likes Â· 1 talking about this. Woodford County Journal Woodford Star 1926 S. Main St. Eureka,... Jump to
Humboldt County is a county in the U.S. state of California. As of the 2010 census, the population was 134,623. The county seat is Eureka. Humboldt County comprises the EurekaâArcataâFortuna, CA Micropolitan Statistical Area. It is located on the far North Coast ~270 miles north of San Francisco.