Fenoxycarb is often formulated as a grit or corncob bait. It is used as a fire ant bait and for flea, mosquito and cockroach control. It is also used to control these pests on stored products. Fenoxycarb is a General Use Pesticide. It also interferes with the molting of larvae.
Insects have a rigid external covering called exoskeleton.
In order to grow and mature, insects must periodically shed or molt their old exoskeleton and produce a new, larger one. Fenoxycarb is nearly non-toxic to mammals. No deaths occurred at this dose. Fenoxycarb was not a skin sensitizer when tested on guinea pigs and has only minimal eye irritation when applied to rabbits. Very few other studies have been conducted on the chronic, long-term toxicity of the compound.