Several defoliating tortricid species collectively referred to as leafrollers can be significant pests of apple and pear.
tortricid pests: their biology, natural enemies and control.
British Dictionary definitions for tortricid
any small moth of the chiefly temperate family Tortricidae, the larvae of which live concealed in leaves, which they roll or tie together, and are pests of fruit and forest trees: includes the codling moth
of, relating to, or belonging to the family Tortricidae
C19: from New Latin Tortrīcidae, from tortrix, feminine of tortor, literally: twister, referring to the leaf-rolling of the larvae, from torquēre to twist