Tina from Bluffton, South Carolina writes
Also, the need for air circulation is stipulated. That implies the active ingredient will need to be blowing around. Again, how could exposed food be safe 3 ft away from it? It isn't clear how these work: "the active ingredient 'moves' from the device into a localized area". Moves how??!
Gentrol Point Source Stations discreetly release microscopic particles of the active ingredient Hydroprene into the treatment area once activated. Target pests do not need to contact the device directly since the active ingredient moves into a localized area. Hydroprene is a biorational Insect Growth Regulator (IGR) – similar to insect growth hormones that occur naturally in roaches and stored product pests - that disrupts the life cycle of certain insects in the egg and larvae stages of development, essentially making it a type of birth control for insects. You only need to keep the disc away from food prep areas not from stored food product. According to the manufacturer, there is almost no hazard from inhalation.
Answer last updated on: 11/13/2025
