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Adams, Stephanie

Beckett Jr., John L.

Danielson, Donna

Hedborn Jr., Edward A.

Milauskas, Susan

Miller, Fredric D.

Whelan, Christopher J.

Objects (214 results)

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Euonymus scale on Euonymus fortunei Euonymus fortunei ‘Vegetus’ (Big-leaved wintercreeper)

SpecimenEuonymus scale on Euonymus fortunei Euonymus fortunei ‘Vegetus’ (Big-leaved wintercreeper)

June 12 1997

Euonymus Scale

SpecimenEuonymus Scale

Euonymus Scale

SpecimenEuonymus Scale

Euonymus Scale

SpecimenEuonymus Scale

Aesculus leafminer (Unknown insect) on Aesculus glabra Willd. (Ohio buckeye)

SpecimenAesculus leafminer (Unknown insect) on Aesculus glabra Willd. (Ohio buckeye)

June 17 1998

Danielson, Donna

Ailanthus webworm (Atteva punctella) on Ailanthus altissima (Mill.) Swingle (tree of heaven)

SpecimenAilanthus webworm (Atteva punctella) on Ailanthus altissima (Mill.) Swingle (tree of heaven)

August 20 1997

Miller, Fredric D.

Alder leafminer (Fenusa dohrnii) on Alnus glutinosa (L.) Gaertn. (European black alder)

SpecimenAlder leafminer (Fenusa dohrnii) on Alnus glutinosa (L.) Gaertn. (European black alder)

June 4 1997

Danielson, Donna

Algal growth (Algae) on Taxus L. (yew)

SpecimenAlgal growth (Algae) on Taxus L. (yew)

January 24 2004

Aphids (honeydew and sooty mold) (Undetermined aphids) on Quercus rubra L. (northern red oak)

SpecimenAphids (honeydew and sooty mold) (Undetermined aphids) on Quercus rubra L. (northern red oak)

July 21 1998

Lewis, Tim

Dodder (Cuscuta spp. on Vitis L. (grape)

SpecimenDodder (Cuscuta spp. on Vitis L. (grape)

August 3 1999

Danielson, Donna

Arborvitae leafminer (Argyresthia thuiella) on Thuja occidentalis L. (eastern arborvitae)

SpecimenArborvitae leafminer (Argyresthia thuiella) on Thuja occidentalis L. (eastern arborvitae)

March 27 2000

Danielson, Donna

Armillaria root rot (Armillaria) on Quercus rubra L. (northern red oak)

SpecimenArmillaria root rot (Armillaria) on Quercus rubra L. (northern red oak)

October 13 1995

Jacobs, Karel

Ascochyta blight (Ascochyta syringae) on Syringa vulgaris L. (common lilac)

SpecimenAscochyta blight (Ascochyta syringae) on Syringa vulgaris L. (common lilac)

May 1 1998

Danielson, Donna

Pine Needle Scale

SpecimenPine Needle Scale

Honeysuckle aphid

SpecimenHoneysuckle aphid

Ash anthracnose (Gloeosporium aridum) on Fraxinus pennsylvanica ‘Patmore’ (Patmore green ash)

SpecimenAsh anthracnose (Gloeosporium aridum) on Fraxinus pennsylvanica ‘Patmore’ (Patmore green ash)

July 10 2002

Danielson, Donna

Ash plant bug (Tropidosteptes amoemus) on Fraxinus mandshurica Rupr. (Manchurian ash)

SpecimenAsh plant bug (Tropidosteptes amoemus) on Fraxinus mandshurica Rupr. (Manchurian ash)

June 4 1997

Danielson, Donna

Asian Longhorned beetle

SpecimenAsian Longhorned beetle

Asian longhorned beetle (Anoplophora glabripennis) on Acer saccharinum L. (silver maple)

SpecimenAsian longhorned beetle (Anoplophora glabripennis) on Acer saccharinum L. (silver maple)

August 11 1998

Danielson, Donna, Jacobs, Karel, Wiegrefe, Sue

Azalea bark scale (Eriococcus azaleae) on Rhododendron mucronulatum Turcz. (Korean rhododendron)

SpecimenAzalea bark scale (Eriococcus azaleae) on Rhododendron mucronulatum Turcz. (Korean rhododendron)

May 25 2000

Bell, Lisa

Lacebug Damage

SpecimenLacebug Damage

Lacebug Damage on Quercus macrocarpa Michx. (bur oak)

SpecimenLacebug Damage on Quercus macrocarpa Michx. (bur oak)

Azalea sawfly (Mematus lipovskyi) on Rhododendron calendulaceum f. aurantium (Flame azalea)

SpecimenAzalea sawfly (Mematus lipovskyi) on Rhododendron calendulaceum f. aurantium (Flame azalea)

May 20 1998

Danielson, Donna

Bacterial blight of lilac (Pseudomonas syrinae) on Syringa vulgaris L. (common lilac)

SpecimenBacterial blight of lilac (Pseudomonas syrinae) on Syringa vulgaris L. (common lilac)

May 4 2000

Jacobs, Karel, Danielson, Donna

Bacterial leaf scorch (Xylella fastidiosa) on Quercus rubra L. (northern red oak)

SpecimenBacterial leaf scorch (Xylella fastidiosa) on Quercus rubra L. (northern red oak)

October 2 2000

Fletcher Scale

SpecimenFletcher Scale

Bagworm (Thyridopteryx ephemeraformis) on Juniperus spp. (Juniper)

SpecimenBagworm (Thyridopteryx ephemeraformis) on Juniperus spp. (Juniper)

June 1 1997

Bald cypress rust mite (Epitrimerus taxodii) on Taxodium distichum (L.) Rich. (bald-cypress)

SpecimenBald cypress rust mite (Epitrimerus taxodii) on Taxodium distichum (L.) Rich. (bald-cypress)

August 12 1998

Bark beetles (Dendroctonus spp.) on Pseudotsuga menziesii ‘Glauca’ (Blue Douglas Fir)

SpecimenBark beetles (Dendroctonus spp.) on Pseudotsuga menziesii ‘Glauca’ (Blue Douglas Fir)

July 17 1997

Danielson, Donna

Birch leafminer (Fenusa pusilla) on Betula papyrifera Marsh. (paper birch)

SpecimenBirch leafminer (Fenusa pusilla) on Betula papyrifera Marsh. (paper birch)

July 30 1997

Danielson, Donna

Black pine needle scale (Nuculaspis califormica) on Pinus mugo var. rostrata (Ant.) Hoopes (Beaked mugo pine)

SpecimenBlack pine needle scale (Nuculaspis califormica) on Pinus mugo var. rostrata (Ant.) Hoopes (Beaked mugo pine)

April 16 1997

Danielson, Donna, Jacobs, Karel, Miller, Fredric D.

Black rot of grapevine (Guignardia bidwellii) on Vitis amurensis Rupr. (Amur grape)

SpecimenBlack rot of grapevine (Guignardia bidwellii) on Vitis amurensis Rupr. (Amur grape)

June 1 1999

Danielson, Donna

Black spot of elm (seeds) (Stegophora ulmea) on Ulmus laevis Pall. (RUSSIAN ELM)

SpecimenBlack spot of elm (seeds) (Stegophora ulmea) on Ulmus laevis Pall. (RUSSIAN ELM)

May 10 1999

Ware, George

Black spot on Ulmus laevis Pall. (RUSSIAN ELM)

SpecimenBlack spot on Ulmus laevis Pall. (RUSSIAN ELM)

June 26 1996

Black spot of rose (Diplocarpon rosea) on Rosa mollis Smith (rose)

SpecimenBlack spot of rose (Diplocarpon rosea) on Rosa mollis Smith (rose)

July 30 1997

Danielson, Donna

Black vine weevil (Hotiorhynchus sulcatus) on Rhododendron L. (azalea)

SpecimenBlack vine weevil (Hotiorhynchus sulcatus) on Rhododendron L. (azalea)

June 26 1997

Danielson, Donna

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