Narrow Results by:

Subject Specific Filters:

All Subject Filters are in use

Image Specific Filters:

  1. Commodity:         

    Conifer (7)
    Trees (4)
    Hardwood (2)

Whitney Cranshaw's Images

Title: Professor/Extension Specialist, Entomology
Organization: Colorado State University
Unit: Dept. Bioagricultural Sciences and Pest Management
Country: United States
Remove Filters: Bark Beetles and Phloem Feeding Insects(X) Damage(X) Portrait(X)
9 Images of 5 Subjects View Subject List View Image Details View Thumbnails

first prev Page: next last Display:

Image Subject Name Scientific Name Description
5443183 spruce beetle Dendroctonus rufipennis Tree mortality along White River in Rio Blanco County. This area was near the epicenter of the massive outbreak of this insect in the late 1940s. Photograph taken July 27, 2011
1326058 blue spruce engraver Ips hunteri Crown dieback symptom if infestation
1326057 blue spruce engraver Ips hunteri Early crown fading symptom of infestation
5382182 banded elm bark beetle Scolytus schevyrewi Recently constructed entrance hole with small amount of weeping at wound site.  
5382164 mountain pine beetle Dendroctonus ponderosae Fresh pitch tubes  
5382166 mountain pine beetle Dendroctonus ponderosae Fresh pitch tubes  
5382170 mountain pine beetle Dendroctonus ponderosae Fresh pitch tube  
5082085 mountain pine beetle Dendroctonus ponderosae pitch out that successfully killed adult attempting to tunnel
5024087 walnut twig beetle Pityophthorus juglandis Late summer wilting associated with twig beetle and general decline in late summer.

Page: