The North American Trichogramma (Hymenoptera: Trichogrammatidae) Parasitizing Certain Tortricidae (Lepidoptera) on Apple and Pear, with ITS2 DNA Characterizations and Description of a New Species

Eleven species of Trichogramma are reported parasitizing tortricid eggs on apple and pear in North America. Codling moth, Cydia pomonella (L.), and oriental fruit moth, Grapholita molesta (Busck), were the primary pest species encountered. Species of the Trichogramma minutum complex were the dominant egg parasites in collections. One of the Trichogramma species, T. itsybitsi Pinto and Stouthamer, is new and is herein described. Species of Trichogramma collected are identified by their ITS2 DNA sequence.