Dendroctonus ponderosae(DENCPO)
Photos
All photos included on this page can only be used for educational purposes.
For publication in journals, books or magazines, permission should be obtained from the original photographers with a copy to EPPO.
For publication in journals, books or magazines, permission should be obtained from the original photographers with a copy to EPPO.
White to cream-coloured larvae of Dendroctonus ponderosae (average length 6 mm) feeding at right angles to the egg gallery.
Courtesy: G.D. Amman - USDA (US).
Vertical egg gallery in the bark of Pinus sp., showing eggs being laid in the phloem on alternate sides of the gallery and dark brown to black, 5 mm long adult D. ponderosae (new adults are light brown to yellow).
Courtesy: G.D. Amman - USDA (US).
D. ponderosae pupae (average length 5 mm) in oval cells made by the mature larvae.
Courtesy: G.D. Amman - USDA (US).
Pitch tubes on a Pinus tree newly infested by D. ponderosae; they consist of pitch and particles of bark expelled from the beetle's egg gallery, and range in colour from dark reddish to cream.
Courtesy: G.D. Amman - USDA (US).