Orange tortrix
- French common name: Tordeuse des citrus
- Scientific name: Argyrotaenia citrana (Fernie)
- Kingdom: Animalia
- Phylum: Arthropoda
- Class: Insecta
- Order: Lepidoptera
- Family: Tortricidae
Distribution
British Columbia
Damage, symptoms and biology
This species can cause economic damage in conifer nursery production.Mature larva up to 15 mm long. Head, brownish yellow with black lateral stripe. Body, yellowish brown above the spiracular line and light creamy yellow below. Each abdominal segment marked with two pairs of faint subdorsal creamy yellow spots (pinnacula).
The orange tortrix is polyphagous.
This species appears to overwinter in the pupal stage. Larvae are present from April to May, pupation occurs from May to June and adults emerge in July. In forest nurseries, particularly in greenhouses, this species appears to be multivoltine.
Canadian Forest Service Publications
Information on host(s)
Douglas-fir, western hemlock, lodgepole pine, grand fir, Sitka spruce, western redcedar, western yew, and on a broad range of hardwood and herbaceous hosts
Main host(s)
Secondary host(s)
Balsam fir, poplars / aspens / cottonwoods, western hemlock, western larch, western white pine
Photos
Robert W. Duncan Centre de foresterie du Pacifique, Victoria (Colombie-Britannique) / Pacific Forestry Centre, Victoria, British Columbia
Robert W. Duncan Centre de foresterie du Pacifique, Victoria (Colombie-Britannique) / Pacific Forestry Centre, Victoria, British Columbia
Robert W. Duncan Centre de foresterie du Pacifique, Victoria (Colombie-Britannique) / Pacific Forestry Centre, Victoria, British Columbia
Robert W. Duncan Centre de foresterie du Pacifique, Victoria (Colombie-Britannique) / Pacific Forestry Centre, Victoria, British Columbia