Insect Growth Regulators. Insect Growth Regulators or IGR inhibit the growth of immature insects. If an insect cannot mature into an adult, it cannot reproduce. Flea eggs and larva never reach adult stage; mosquito larvae die before reaching adult stage; roaches and other insects cannot molt properly, which inhibits their ability to reproduce.
Fairfield, Alabama is located in Jefferson County. Zip codes in Fairfield, AL include 35064. The median home price in Fairfield is $54 which is roughly $54/per square foot. More Fairfield information.
The city had its beginning about 1836, when Pleasant and Ephraim Gray opened a trading post on the site. Ephraim Gray became first postmaster in 1837, naming it after his former home town, Huntsville in Madison County, Alabama. (Incidentally, Madison County is also the name of an adjacent Texas county .).