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Integrated Pest Management · Agriculture and Natural Resources

University of California

Diseases of fruiting trees, shrubs and vines

The table below lists plant host, disease common name, scientific name, and disease type for pests included in this Web site. Click on the common name to link to more information about the disease. Click on a table heading to sort the column. (requires Javascript)

To see a list of common pests and disorders of a particular plant, view the Fruit trees menu pages.

Descending = Ascending  Ascending= Descending  Unsorted= Unsorted

Plant or crop host Common name Scientific name Type
almond Almond leaf scorch (Bacterial leaf scorch) Xylella fastidiosa Bacteria
almond Armillaria root rot (Oak root fungus) Armillaria mellea Fungus
almond Bacterial canker Pseudomonas syringae Bacteria
almond Bacterial leaf scorch (almond leaf scorch) Xylella fastidiosa Bacteria
almond Brown rot Monilinia spp. Fungus
almond Coryneum blight (Shot hole disease) Wilsonomyces carpophilus Fungus
almond Crown gall Agrobacterium tumefaciens Bacteria
almond Oak root fungus (Armillaria root rot) Armillaria mellea Fungus
almond Phytophthora root and crown rot Phytophthora spp. Oomycete
almond Scab Cladosporium (syn. Fusicladium) carpophilum Fungus
almond Scab Fusicladium (syn. Cladosporium) carpophilum Fungus
almond Shot hole disease (Coryneum blight) Wilsonomyces carpophilus Fungus
almond Verticillium wilt Verticillium dahliae Fungus
apple Apple mosaic Ilarvirus Virus
apple Apple scab Venturia inaequalis Fungus
apple Armillaria root rot (Oak root fungus) Armillaria mellea Fungus
apple Bacterial blossom blast Pseudomonas syringae Bacteria
apple European canker (Necria canker) Nectria galligena Fungus
apple Fire blight Erwinia amylovora Bacteria
apple Necria canker (European canker) Nectria galligena Fungus
apple Oak root fungus (Armillaria root rot) Armillaria mellea Fungus
apple Papery bark (Sappy bark) Trametes versicolor Fungus
apple Phytophthora root and crown rot Phytophthora spp. Oomycete
apple Powdery mildew Podosphaera leucotricha Fungus
apple Sappy bark (Papery bark) Trametes versicolor Fungus
apple Varnish fungus rot Ganoderma lucidum Fungus
apricot Bacterial canker and blast Pseudomonas syringae Bacteria
apricot Coryneum blight (Shot hole disease) Wilsonomyces carpophilus Fungus
apricot Eutypa dieback Eutypa lata Fungus
apricot Powdery mildew Podosphaera tridactyla Fungus
apricot Powdery mildew Sphaerotheca pannosa Fungus
apricot Shot hole disease (Coryneum blight) Wilsonomyces carpophilus Fungus
avocado Avocado root rot Phytophthora cinnamomi Oomycete
avocado Bacterial canker Xanthomonas campestris Bacteria
avocado Dothiorella canker Botryosphaeria spp. Fungus
avocado Dothiorella canker Neofusicoccum spp. Fungus
avocado Phytophthora root and crown rot Phytophthora spp. Oomycete
avocado Sunblotch none Virus
avocado Verticillium wilt Verticillium dahliae Fungus
caneberry Anthracnose Elsinoe spp. Fungus
caneberry Armillaria root rot Armillaria spp. Fungus
caneberry Botrytis fruit rot (Gray mold) Botrytis cinerea Fungus
caneberry Crown gall Agrobacterium spp. Bacteria
caneberry Downy mildew Peronospora sparsa Oomycete
caneberry Gray mold (Botrytis fruit rot) Botrytis cinerea Fungus
caneberry Leaf spot Mycosphaerella rubi Fungus
caneberry Orange rust Arthuriomyces peckianus Fungus
caneberry Orange rust Gymnoconia nitens Fungus
caneberry Phytophthora root rot Phytophthora spp. Oomycete
caneberry Powdery mildew Sphaerotheca macularis Fungus
caneberry Purple blotch Septocyta ruborum Fungus
caneberry Verticillium wilt Verticillium dahliae Fungus
caneberry Viruses none Virus
caneberry Yellow rust Phragmidium rubi-idaei Fungus
cherry Almond leaf scorch (Bacterial leaf scorch) Xylella fastidiosa Bacteria
cherry Bacterial leaf scorch (almond leaf scorch) Xylella fastidiosa Bacteria
cherry Cherry buckskin (X-disease) none Phytoplasma
cherry Cherry leaf spot Blumeriella jaapii Fungus
cherry Hairy turkey tail Trametes hirsuta Fungus
cherry Leaf spot, Cherry Blumeriella jaapii Fungus
cherry Parchment fungus Stereum spp. Fungus
cherry Powdery mildew Podosphaera clandestina Fungus
cherry Sulfur fungus Laetiporus sulphureus Fungus
cherry Turkey tail Trametes versicolor Fungus
cherry Varnish fungus rot Ganoderma lucidum Fungus
cherry Verticillium wilt Verticillium spp. Fungus
cherry Viruses none Virus
cherry X-disease (Cherry buckskin) none Phytoplasma
citrus Alternaria rot Alternaria citri Fungus
citrus Anthracnose Collectotrichum gloeosporioides Fungus
citrus Anthracnose Glomerella cingulata Fungus
citrus Armillaria root rot (Oak root fungus) Armillaria mellea Fungus
citrus Artist's conk Ganoderma applanatum Fungus
citrus Brown rot Phytophthora spp. Fungus
citrus Citrus blast Pseudomonas syringae Fungus
citrus Citrus greening (Huanglongbing disease) Candidatus Liberibacter asiaticus Bacteria
citrus Exocortis Citrus exocortis viroid (CEVd) Viroid
citrus Hairy turkey tail Trametes hirsuta Fungus
citrus Huanglongbing disease (Citrus greening) Candidatus Liberibacter asiaticus Bacteria
citrus Oak root fungus (Armillaria root rot) Armillaria mellea Fungus
citrus Phytophthora gummosis Phytophthora spp. Oomycete
citrus Phytophthora root rot Phytophthora spp. Oomycete
citrus Tristeza disease complex Tristeza virus Virus
citrus Varnish fungus rot Ganoderma lucidum Fungus
fig Fig mosaic none Virus
fig Phomopsis canker Phomopsis spp. Fungus
fig Souring none Yeast
grape Armillaria root rot (Oak root fungus) Armillaria mellea Fungus
grape Bunch rot (Gray mold) Botrytis cinerea Fungus
grape Crown gall Agrobacterium tumefaciens Bacteria
grape Downy mildew Plasmopara viticola Oomycete
grape Eutypa dieback Eutypa lata Fungus
grape Gray mold (Bunch rot) Botrytis cinerea Fungus
grape Leaf spot and Phomopsis cane Phomopsis viticola Fungus
grape Measles Phaeoacremonium spp. Fungus
grape Oak root fungus (Armillaria root rot) Armillaria mellea Fungus
grape Phomopsis cane and leaf spot Phomopsis viticola Fungus
grape Phytophthora crown and root rot Phytophthora megasperma Oomycete
grape Pierce's disease Xylella fastidiosa Bacteria
grape Powdery mildew Erysiphe necator Fungus
grape Viruses various Virus
nectarine Coryneum blight (Shot hole disease) Wilsonomyces carpophilus Fungus
nectarine Peach leaf curl Taphrina deformans Fungus
nectarine Peach leaf curl Taphrina deformans Fungus
nectarine Powdery mildew Podosphaera leucotricha Fungus
nectarine Powdery mildew Sphaerotheca pannosa Fungus
nectarine Rust Tranzschelia discolor Fungus
nectarine Scab Cladosporium (syn. Fusicladium) carpophilum Fungus
nectarine Scab Fusicladium (syn. Cladosporium) carpophilum Fungus
nectarine Shot hole disease (Coryneum blight) Wilsonomyces carpophilus Fungus
nectarine Turkey tail Trametes versicolor Fungus
olive Varnish fungus rot Ganoderma lucidum Fungus
peach Coryneum blight (Shot hole disease) Wilsonomyces carpophilus Fungus
peach Peach leaf curl Taphrina deformans Fungus
peach Peach leaf curl Taphrina deformans Fungus
peach Powdery mildew Podosphaera leucotricha Fungus
peach Powdery mildew Sphaerotheca pannosa Fungus
peach Rust Tranzschelia discolor Fungus
peach Scab Cladosporium (syn. Fusicladium) carpophilum Fungus
peach Scab Fusicladium (syn. Cladosporium) carpophilum Fungus
peach Shot hole disease (Coryneum blight) Wilsonomyces carpophilus Fungus
peach Varnish fungus rot Ganoderma lucidum Fungus
pear Armillaria root rot (Oak root fungus) Armillaria mellea Fungus
pear European canker (Necria canker) Nectria galligena Fungus
pear Fire blight Erwinia amylovora Bacteria
pear Necria canker (European canker) Nectria galligena Fungus
pear Oak root fungus (Armillaria root rot) Armillaria mellea Fungus
pear Pear decline na Phytoplasma
pear Pear rust Gymnosporangium libocedri Fungus
pear Pear scab Venturia pirina Fungus
plum Powdery mildew Podosphaera tridactyla Fungus
plum Powdery mildew Sphaerotheca pannosa Fungus
prune Powdery mildew Podosphaera tridactyla Fungus
quince Powdery mildew Podosphaera leucotricha Fungus
stone fruit Armillaria root rot (Oak root fungus) Armillaria mellea Fungus
stone fruit Brown rot Monilinia spp. Fungus
stone fruit Cytospora canker Cytospora spp. Fungus
stone fruit Oak root fungus (Armillaria root rot) Armillaria mellea Fungus
stone fruit Phytophthora root and crown rot Phytophthora spp. Oomycete
strawberry Angular leaf spot Xanthamonas fragariae Fungus
strawberry Black root rot various Fungus
strawberry Botrytis rot (gray mold) Botrytis cinerea Fungus
strawberry Common leaf spot Mycosphaerella fragariae Fungus
strawberry Common leaf spot Ramularia tulasnei Fungus
strawberry Gray mold (Botrytis rot) Botrytis cinerea Fungus
strawberry Leaf blotch Gnomonia fragariae Fungus
strawberry Leaf blotch Zythia fragariae Fungus
strawberry Leaf scorch Diplocarpon earlianum Fungus
strawberry Leaf spot various Fungus
strawberry Leaf spot, Angular Xanthamonas fragariae Fungus
strawberry Leaf spot, Common Mycosphaerella fragariae Fungus
strawberry Leaf spot, Common Ramularia tulasnei Fungus
strawberry Leak (Rhizopus rot) Rhizopus spp. Fungus
strawberry Phomopsis leaf blight Phomopsis obscurans Fungus
strawberry Phytophthora root and crown rot (Red Stele) Phytophthora spp. Oomycete
strawberry Powdery mildew Sphaerotheca macularis Fungus
strawberry Red Stele (Phytophthora root and crown rot) Phytophthora spp. Oomycete
strawberry Rhizopus rot (Leak) Rhizopus spp. Fungus
strawberry Verticillium wilt Verticillium dahliae Fungus
strawberry Viruses none Virus
various fruits and nuts Alcoholic flux (Foamy canker) na Unknown
various fruits and nuts Bacterial blight Pseudomonas syringae Bacteria
various fruits and nuts Foamy canker (alcoholic flux) na Unknown
various fruits and nuts Hairy root Agrobacterium rhizogenes Bacteria
various fruits and nuts Sooty mold various Fungus
various fruits and nuts Wood decay (general) various Fungus
walnut Anthracnose Gnomonia leptostyla Fungus
walnut Armillaria root rot (Oak root fungus) Armillaria mellea Fungus
walnut Blackline cherry leaf roll virus Virus
walnut Branch wilt Hendersonula tortuloidea Fungus
walnut Common split gill Schizophyllum commune Fungus
walnut Deep bark canker Erwinia rubrifaciens Bacteria
walnut Hairy turkey tail Trametes hirsuta Fungus
walnut Oak root fungus (Armillaria root rot) Armillaria mellea Fungus
walnut Oyster mushroom Pleurotus ostreatus Fungus
walnut Phytophthora root and crown rot Phytophthora spp. Oomycete
walnut Shallow bark canker Erwinia nigrifluens Bacteria
walnut Sulfur fungus Laetiporus sulphureus Fungus
walnut Turkey tail Trametes versicolor Fungus
walnut Walnut blight Xanthamonas campestris Bacteria