Argyrotaenia dorsalana (Dyar)
- Latin name: Argyrotaenia dorsalana (Dyar)
- French name:
- Order: Lepidoptera
- Family: Tortricidae
Description
Distribution
British Columbia
Micro-habitat(s)
Needle
Damage, symptoms and biology
Argyrotaenia dorsalana is a common innocuous solitary defoliator.Mature larva up to 17 mm long. Head, yellowish green with black triangular lateral marking. Body, yellowish green, dark green middorsal pin stripe; dorsum of each abdominal segment marked with two pairs of faint yellow spots.
This species appears to overwinter in the egg stage. Larvae are present from early May to mid-June; pupation occurs in late June and adults emerge soon after.
Canadian Forest Service Publications
https://cfs.nrcan.gc.ca/publications/search?q=
Diet and feeding behaviour
-
Phyllophagous
: Feeds on the leaves of plants.
- Free-living defoliator: Feeds on and moves about freely on foliage.
Information on host(s)
The principal host of Argyrotaenia dorsalana is Douglas-fir; other hosts include western hemlock and western redcedar.
Main host(s)
Douglas-fir, Rocky Mountain Douglas-fir, western hemlock, western larch
Secondary host(s)
Grand fir, ponderosa pine, spruces
Photos
Dion Manastyrski Centre de foresterie du Pacifique, Victoria (Colombie-Britannique) / Pacific Forestry Centre, Victoria, British Columbia
Dion Manastyrski Centre de foresterie du Pacifique, Victoria (Colombie-Britannique) / Pacific Forestry Centre, Victoria, British Columbia