Intrepid® mimics the action of the ecdysone hormone, strongly binding to its receptor site in Lepidoptera species. This insecticide must be ingested by the target larvae and cessation of feeding begins within a few hours and mortality occurs between 1-7 days, depending on species and growth stage. Intrepid® is not systemic, but exhibits limited translaminar movement, and it does not have vapor activity. It is highly effective against common cotton foliage feeders at rates that vary between 0.05 to 0.15 pounds of active ingredient per acre (56 to 168 grams of active ingredient per hectare). Due to this limited species spectrum characteristic, Intrepid® does not cause mortality on beneficial arthropods, making it an insecticide perfectly suitable for IPM programs, and because its unique mode of action, pest cross resistance to this insecticide is not likely.