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Ornamentals: Trees

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101 Images of 25 Subjects View Subject List View Image Details View Thumbnails

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Image Subject Name Scientific Name Description
5411358 black spot of elm Stegophora ulmea leaf spots
5487860 fusiform rust Cronartium quercuum f.sp. fusiforme Fusiform swelling on branch
5487949 black root rot Thielaviopsis basicola phialides, conidia and aleurioconidia
5487950 black root rot Thielaviopsis basicola Phialides and conidia
5487951 black root rot Thielaviopsis basicola conidia
5487952 black root rot Thielaviopsis basicola phialides, conidia and aleuroconidia
5487953 quince rust Gymnosporangium clavipes teliospore
5487947 black root rot Thielaviopsis basicola phialides, conida and aleurioconidia
5487948 black root rot Thielaviopsis basicola phialides, conidia and aleurioconidia
5487946 black root rot Thielaviopsis basicola phialides, conidia and aleurioconidia
5487929 powdery mildew Oidium spp. powdery mildew on leaves
5487930 powdery mildew Oidium spp. white mycelium on leaf
5487928 powdery mildew Oidium spp. leaf necrosis
5487895 powdery mildew Oidium spp. White mycelium on underside of leaf
5487896 powdery mildew Oidium spp. off color foliage
5487897 powdery mildew Oidium spp. off color foliage
5487898 powdery mildew Oidium spp. off color foliage
5487899 powdery mildew Oidium spp. off color foliage
5487894 powdery mildew Oidium spp. yellowing
5487884 Diplodia blight Sphaeropsis sapinea Tip blight
5487879 quince rust Gymnosporangium clavipes rust sporulation
5487880 quince rust Gymnosporangium clavipes Cankered branch with rust spoulation
5487878 quince rust Gymnosporangium clavipes Spindle-shaped swellings on branch
5487866 Seiridium cankers Seiridium spp. cankered branch
5487867 Seiridium cankers Seiridium spp.
5487865 Seiridium cankers Seiridium spp. cankered branch
5479894 Ganoderma root and butt rot Ganoderma lucidum conks at base of tree
5479897 Ganoderma root and butt rot Ganoderma lucidum Conks at the base of the tree
5479814 bacterial leaf scorch Xylella fastidiosa A yellow border between green and necrotic tissue is a typical symptom of bacterial leaf scorch
5479815 bacterial leaf scorch Xylella fastidiosa A yellow border between green and necrotic tissue is a typical symptom of bacterial leaf scorch
5479920 bacterial leaf scorch Xylella fastidiosa A yellow border between green and necrotic tissue is a typical symptom of bacterial leaf scorch
5479921 bacterial leaf scorch Xylella fastidiosa A yellow border between green and necrotic tissue is a typical symptom of bacterial leaf scorch
5479917 Phytophthora root rot Phytophthora cinnamomi DiebackCultivar is 'Densa' 
5479918 Phytophthora root rot Phytophthora cinnamomi Blackening of stem near base of plantCultivar is 'Densa' 
5479919 Phytophthora root rot Phytophthora cinnamomi Blackening of stem near base of plantCultivar is 'Densa' 
5411355 Dothistroma needle blight Mycosphaerella pini browning on older needles
5411356 Dothistroma needle blight Mycosphaerella pini fruiting bodies erupting through older needles
5411433 Cytospora cankers Cytospora spp. orange cirrhi (ribbon-like mass of spores) exuded from pycnidia
5411434 Cytospora cankers Cytospora spp. Fungal condia
5411410 mimosa wilt Fusarium oxysporum f.sp. perniciosum extensive dieback in trunk during the second year  after diagnosis
5411411 rust Cerotelium fici leaf spots on upper leaf surface
5411412 rust Cerotelium fici leaf spots on lower leaf surface
5411413 rust Cerotelium fici
5411414 rust Cerotelium fici
5411415 rust Cerotelium fici rust pustules on underside of leaf
5411416 Eastern filbert blight Anisogramma anomala fruiting bodies (perithecial stromata) erupting through bark
5411417 Eastern filbert blight Anisogramma anomala fruiting bodies (perithecial stromata) erupting through bark
5411418 Eastern filbert blight Anisogramma anomala fruiting bodies (perithecial stromata) erupting through bark
5411399 Cytospora cankers Cytospora spp. cankered branch
5411400 Cytospora cankers Cytospora spp. cankered branch
5411381 sooty mold Sooty mold on branch
5411382 sooty mold Sooty mold on branch
5411383 eye spot Phyllosticta minima symptoms on foliage
5411384 eye spot Phyllosticta minima browning on foliage and black pycnidia in necrotic areas
5411385 eye spot Phyllosticta minima browning on foliage and black pycnidia in necrotic areas
5411368 quince rust Gymnosporangium clavipes aecia with orange aeciaspores on fruit
5411369 quince rust Gymnosporangium clavipes aecia with orange aeciaspores on fruit
5411370 quince rust Gymnosporangium clavipes diseased fruit on hawthorn
5411363 mimosa wilt Fusarium oxysporum f.sp. perniciosum yellowed and stunted foliage  during the second year after diagnosis
5411364 mimosa wilt Fusarium oxysporum f.sp. perniciosum yellowed and stunted foliage  during the second year after diagnosis
5411365 Botryosphaeria rots and cankers Botryosphaeria spp. cankered area on branch
5411366 Botryosphaeria rots and cankers Botryosphaeria spp. cankered branch
5411367 quince rust Gymnosporangium clavipes diseased fruit
5411322 eye spot Phyllosticta minima pycnidia of the fungus on leaves
5411323 eye spot Phyllosticta minima pycnidia of the fungus on leaves
5411328 Diplodia blight Sphaeropsis sapinea dark fungal conidia
5411329 Diplodia blight Sphaeropsis sapinea pycnidia on needles
5411337 Diplodia blight Sphaeropsis sapinea tip blight
5411338 Diplodia blight Sphaeropsis sapinea tip blight
5411339 black knot Apiosporina morbosa Black knot on branches of wild cherry tree
5389811 black root rot Xylaria polymorpha The exterior of the Xylaria stroma is black and the inside is white.
5389812 black root rot Xylaria polymorpha The dark stromata of Xylaria emerging from the base of a hawthorn.
5389813 Leptographium root disease Leptographium procerum Resin flow on trunk
5389814 Leptographium root disease Leptographium procerum Characteristic wedge-shaped discoloration in cross-section of trunk
5383171 mimosa wilt Fusarium oxysporum f.sp. perniciosum Symptoms on trunk
5383163 bacterial leaf scorch Xylella fastidiosa Symptoms of Bacterial Leaf Scorch caused by the bacterium, Xylella fastidiosa, on a cluster of Camperdown elm (Ulmus glabra 'Camperdownii') branches.
5383164 bacterial leaf scorch Xylella fastidiosa Leaf symptoms on Camperdown elm (Ulmus glabra 'Camperdownii')
5383165 bacterial leaf scorch Xylella fastidiosa Leaf symptoms on Camperdown elm (Ulmus glabra 'Camperdownii')
5383166 bacterial leaf scorch Xylella fastidiosa Camperdown elm (Ulmus glabra 'Camperdownii'); Cluster of elm branches with symptoms of bacterial leaf scorch.
5383173 Mycosphaerella leaf spot Mycosphaerella cerasella Shothole leaf spots on cherry
5383175 Mycosphaerella leaf spot Mycosphaerella cerasella Shothole leaf spots on cherry
5383176 Mycosphaerella leaf spot Mycosphaerella cerasella Shothole leaf spots on cherry
5383177 southern blight Sclerotium rolfsii Roots
5383178 southern blight Sclerotium rolfsii Roots
5383180 southern blight Sclerotium rolfsii Sclertoia and mycelium on culture media Acid potato dextrose agar (APDA). Isolated from apple (Malus domestica)
5383181 southern blight Sclerotium rolfsii Sclertoia and mycelium on culture media Acid potato dextrose agar (APDA). Isolated from apple (Malus domestica)
5383182 bitter rot and anthracnose Colletotrichum gloeosporioides Lesions on fruit
5383183 bitter rot and anthracnose Colletotrichum gloeosporioides Lesions on fruit
5383184 bitter rot and anthracnose Colletotrichum gloeosporioides Lesions on fruit
5383144 leaf spot Tubakia dryina pycnothyrium and conidia
5383167 mimosa wilt Fusarium oxysporum f.sp. perniciosum Branch dieback
5383168 mimosa wilt Fusarium oxysporum f.sp. perniciosum Branch dieback
5383169 mimosa wilt Fusarium oxysporum f.sp. perniciosum Symptoms on trunk
5383170 mimosa wilt Fusarium oxysporum f.sp. perniciosum Symptoms on trunk
5383172 mimosa wilt Fusarium oxysporum f.sp. perniciosum Symptoms on trunk
5383196 mimosa wilt Fusarium oxysporum f.sp. perniciosum Progression of the disease in the fall
5383197 mimosa wilt Fusarium oxysporum f.sp. perniciosum Symptoms on trunk
5383198 mimosa wilt Fusarium oxysporum f.sp. perniciosum Symptoms on trunk
5383199 mimosa wilt Fusarium oxysporum f.sp. perniciosum Progression of the disease in the fall
5383204 mimosa wilt Fusarium oxysporum f.sp. perniciosum Sprouts emerging near base of diseased tree
5383205 mimosa wilt Fusarium oxysporum f.sp. perniciosum Sprout emerging from base of diseased tree

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