Valeria from Athens, Ga writes
How long does the undiluted concentrate stay potent? If I buy a pint, but only need to apply every 4 months, will it last 5 years to the last ounce if kept in a cool dry location?
Gentrol IGR in the original bottle has a shelf life of about 3 years if kept out of extreme temperatures and direct sunlight.
Answer last updated on: 05/25/2016