Browsing by decade: object type:
Specimen
Arborvitae leafminer (Argyresthia thuiella) on Thuja occidentalis L. (eastern arborvitae)March 27 2000
Danielson, Donna
Specimen
Ash anthracnose (Gloeosporium aridum) on Fraxinus pennsylvanica ‘Patmore’ (Patmore green ash)July 10 2002
Danielson, Donna
Specimen
Azalea bark scale (Eriococcus azaleae) on Rhododendron mucronulatum Turcz. (Korean rhododendron)May 25 2000
Bell, Lisa
Specimen
Bacterial blight of lilac (Pseudomonas syrinae) on Syringa vulgaris L. (common lilac)May 4 2000
Jacobs, Karel, Danielson, Donna
Specimen
Bacterial leaf scorch (Xylella fastidiosa) on Quercus rubra L. (northern red oak)October 2 2000
Specimen
Dogwood anthracnose (Discula destruxtiva) on Cornus florida L. (flowering dogwood)August 2 2002
Specimen
Flea weevil damage (unknown flea weevil) on Ulmus americana 'Moline' (MOLINE AMERICAN ELM)August 3 2003
Danielson, Donna
Specimen
Frost damage (Abiotic - cold temperatures during leaf expansion) on Cercidiphyllum japonicum Sieb. & Zucc. (katsura tree)July 10 2002
Danielson, Donna
Specimen
Iron chlorosis (High pH soil (Abiotic problem)) on Quercus palustris Münchh. (pin oak)July 10 2006
Danielson, Donna
Specimen
Oak wilt (Ceratocystis fagacearum) on Quercus macrocarpa Michx. (bur oak)July 2 2004
Malatia, Brian
Specimen
Pine-pine gall rust (Endocronartium harknessii) on Pinus sylvestris L. (Scots pine)September 2001
Specimen
Plum pockets (Taphrina communis) on Prunus persica (L.) Batsch (peach)June 6 2000
Hedborn Jr., Edward A.
Specimen
Powdery mildew (Phyllactinia guttata) on Quercus macrocarpa Michx. (bur oak)August 2 2002
G., Dean
Specimen
White pine weevil (Phyllactinia guttata) on Pinus strobus L. (eastern white pine)July 22 2002
Danielson, Donna