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
Homefacts City Report. Eureka is located in St. Louis County, MO. The population is 10,122. There are 4 public schools in Eureka with an average Homefacts rating of A+. The total crime rate for Eureka is moderate, and there are 12 registered sex offenders residing in the city. Unemployment in Eureka is moderate and the median home sales price is $0.