Plum Curculio (Conotrachelus nenuphar Herbst) larval emergence, developmental time and emerged mass were measured after pre-infested tart cherry (Prunus cerasus) fruit were treated with insecticides. Mated and reproductively mature female plum curculio were caged on trees with developing cherry fruit (10mm diameter) and allowed to oviposit for 48hrs. After egg hatch, fruit were sprayed with field rate solutions of insect growth regulator, neonicotinoid, organophosphate, or oxadiazine insecticides. Chemical penetration profiles were developed in parallel with the oviposition study to determine the extent that insecticides move into fruit. The concept of 'curative' applications for a zero-tolerance pest is discussed, as is the utility of simultaneously targeting immature and adult plum curculio with these chemistries.