Prairie-cities

Guides

• Caloptilia fraxinella

  Ash Leaf Cone Roller, Ash Leaf Cone Roller Moth

  Caloptilia fraxinella is a leaf-mining moth in the family Gracillariidae. Native to North America, it has become a significant pest of horticultural ash trees (Fraxinus spp.) in Canadian Prairie cities and parts of the United States. The species exhibits an unusual life history with a 9-month adult reproductive diapause; adults eclose in summer, overwinter, and mate the following spring. Larvae mine ash leaves and eventually roll leaflets into cones for pupation.

  leaf-minerash-pesturban-forestdiapausebiological-controlGracillariidaeinvasivehorticultural-pestparasitoidchemical-ecologyvolatile-organic-compoundsreproductive-physiologyoverwinteringintegrated-pest-managementprairie-citiesFraxinusApanteles-polychrosidisCaloptiliaLepidoptera