Tiny worms attacking dewberry fruits were reared and identified as Cacoecia rosaceana. Larvae remained small throughout late summer. fall and winter, feeding as leafrollers during the spring. Only 1 generation a year occurred. The dipterous parasite Phoracera erecta, the hymenop-terous parasites Itoplectis atrocoxalis, Glypta simplicipes, Macrocentrus amicroploides, Microdontomerus fumipennis, and the hyperparasite Catolaccus aeneoviridis, were reared from this dewberry pest.