Hazelnut

Guides

• Agrilus pseudocoryli

  hazel stem borer

  Agrilus pseudocoryli is a metallic wood-boring beetle in the family Buprestidae, commonly known as the hazel stem borer. It develops within stems of hazelnut plants (Corylus spp.), where larval tunneling causes dieback. The species has been documented as a pest of hybrid hazelnut cultivars in the Great Lakes region, with damage severity varying by cultivar. Adult activity occurs from early June to mid-July.

  pestagriculturestem-borerhazelnutCorylusGreat-Lakeshybrid-hazelnut-cultivationdiebacksecondary-pestdrought-sensitivity

• Anacampsis tristrigella

  A small gelechiid moth with distinctive wing patterning described by Walsingham in 1882. The species is recognized by its greyish-fuscous forewings with greenish iridescence, steel-grey costal streak, and characteristic white markings including a transverse fascia and three to four apical tooth-like streaks. Larvae are known to feed on American hazelnut (Corylus americana).

  Gelechiidaeleaf-minerhazelnutNorth-Americasmall-mothpatterned-wings

• Corythucha coryli

  hazelnut lace bug

  Corythucha coryli, the hazelnut lace bug, is a species of lace bug in the family Tingidae. It is found in North America. The species is associated with hazelnut (Corylus) and other plants in the birch family (Betulaceae). Like other lace bugs, it feeds on plant sap and produces characteristic white stippling damage on leaves.

  lace-bugsap-feederBetulaceaehazelnutNorth-America

• Curculio uniformis

  Filbert Weevil

  Curculio uniformis, commonly known as the filbert weevil, is a species of true weevil in the family Curculionidae. The species is recognized as a nut-feeding specialist associated with filberts (hazelnuts). Like other members of the genus Curculio, it possesses the characteristic elongated rostrum used for drilling into nuts to oviposit. The species is recorded from North America, including British Columbia, Canada.

  weevilnut-pestfilberthazelnutCurculionidae

• Purshivora coryli

  Hazelnut psyllid

  Purshivora coryli is a psyllid species in the family Psyllidae that feeds on hazelnut (Corylus species). Psyllids, also known as jumping plant lice, are small sap-feeding insects with host-specific relationships to their plant hosts. This species is associated with the genus Corylus in the birch family Betulaceae. The genus Purshivora comprises species specialized on hosts within Betulaceae.

  psyllidhazelnutBetulaceaespecialist-herbivoresap-feeder