Range: Micronesia, Hawaii Injury: Larvae tunnel in the interior of their host plants. Description: Larvae are white, legless grubs. Their tunnel is usually blocked at the entrance by a plug of plant fibers. They pupate inside the cavity they have excavated in a cocoon of fragments of soft bark and fiber. They bore into the base of the trunk and can weaken the tree until it is blown down in high winds. (15-063) Species: Rhyacionia buoliana Host: Red pine, Scotch pine, mugho pine, Austrian pine Secondary host: Ponderosa pine, lodgepole pine, eastern white pine, Jack pine, loblolly pine, Virginia pine, longleaf pine Range: Northeastern states, Washington, Oregon
Range: Micronesia, Hawaii Injury: Larvae tunnel in the interior of their host plants. Description: Larvae are white, legless grubs. Their tunnel is usually blocked at the entrance by a plug of plant fibers. They pupate inside the cavity they have excavated in a cocoon of fragments of soft bark and fiber. They bore into the base of the trunk and can weaken the tree until it is blown down in high winds. (15-063) Species: Rhyacionia buoliana Host: Red pine, Scotch pine, mugho pine, Austrian pine Secondary host: Ponderosa pine, lodgepole pine, eastern white pine, Jack pine, loblolly pine, Virginia pine, longleaf pine Range: Northeastern states, Washington, Oregon
FSVeg_Cat15_BoringInsects.docx