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Ohio State University Extension


Plant Pathology

Title (Click to Sort) Fact Sheet Number Tags
Sour Rot Disorder of Grape PLPATH-FRU-50 grape, sour rot, fruit flies
Cedar-Apple Rust PLPATH-TREE-10 cedar, apple, gymnosporangium juniperi-virginianae, rust disease
Soybean Cyst Nematode PLPATH-SOY-5 soybean, scn, cyst, nematode, scn prevention, scn symptoms, yellow soybeans, nematodes, scn damage
Phytophthora Damping-off and Root Rot of Soybean PLPATH-SOY-04 soybeans, damping-off, seed treatment, phytophthora root rot, soybean
Beech Bark Disease PLPATH-TREE-09 beech tree, beech bark disease, plant disease
Hops Downy Mildew PLPATH-FRU-49 hops, downy mildew, disease
Downy Mildew of Blackberry PLPATH-FRU-48 blackberry, downy mildew, disease
Identification and Management of Soilborne Diseases of Tomato HYG-3314 tomato, soilborne disease, wilt, root rot
Anaerobic Soil Disinfestation for Management of Soilborne Diseases in Midwestern Vegetable Production HYG-3315 tomato, soilborne disease, anaerobic soil disinfestation, wilt, root rot
Grape Black Rot PLPATH-FRU-24 black rot, grape, grape disease, grape plant fungus, black rot chemical control
Melampsora Rust PLPATH-TREE-08 melampsora rust, poplars, tree diseases
Orange Rust of Brambles PLPATH-FRU-30 orange rust, brambles
Soybean Rust PLPATH-SOY-2 soybeans, rust, plant disease
Sclerotinia Stem Rot (White Mold) of Soybean PLPATH-SOY-3 sclerotinia stem rot, soybeans, disease management, white mold
Viral Diseases of Plants PLPATH-GEN-5 home, yard and garden, plant disease, viral diseases of plants, viral plant diseases
20 Questions on Plant Diagnosis PLPATH-GEN-3 home, yard and garden, plant disease, plant pathology diagnosis, plant health management
Diagnosing Sick Plants PLPATH-GEN-2 diagnosing plant diseases, plant disease series, plant pathogens versus insects, questions for diagnosing a sick plant
Sanitation and Phytosanitation (SPS) PLPATH-GEN-10 home, yard and garden, plant disease
Parasitic Higher Plants PLPATH-GEN-9 home, yard and garden, plant disease
Rhizoctonia Damping-off and Root Rot of Soybeans PLPATH-SOY-1 soybeans
Lichens PLPATH-GEN-12 lichens, foliose lichens, fruiticose lichens, crustose lichens, squamulose lichens
Plants Get Sick Too! PLPATH-GEN-1 home, yard and garden, plant disease, plant pathology, plant health, plant injury
Fungal and Fungal-like Diseases of Plants PLPATH-GEN-7 home, yard and garden, plant disease, fungal and fungal-like diseases of plants, plant pathology
Bacterial Diseases of Plants PLPATH-GEN-6 home, yard and garden, plant disease, bacterial diseases of plants, plant bacteria, bacterial plant diseases
Nematode Diseases of Plants PLPATH-GEN-8 home, yard and garden, plant disease, nematode diseases of plants, nematodes, nematode plant diseases
Keeping Plants Healthy PLPATH-GEN-4 home, yard and garden, plant disease
Food Safety in Gardens HYG-1153 food safety, garden
Food Safety and Garden Flooding HYG-1154 food safety, flooding, garden
Bitter Rot of Apple PLPATH-FRU-20 bitter rot, apple, apple disease, rotten spots on apples, rotten apples, controlling bitter rot on apples
Fire Blight of Apples and Pears PLPATH-FRU-22 apple, pear, fire blight, erwinia, apple bacteria, pear bacteria
Blueberry Leaf Rust PLPATH-FRU-43 blueberry, blueberry rust, blueberry leaf rust, pucciniastrum vaccinia
Scab of Apple PLPATH-FRU-23 apple, apple scab, venturia inaequalis
Leather Rot of Strawberry PLPATH-FRU-09 strawberries, leather rot, controlling leather rot, leather rot fungicides, infected strawberries, brown strawberries, leathery strawberries, strawberry fungus, white mold on strawberries
Rusts of Apple PLPATH-FRU-02 apple, rust diseases
Barley Yellow Dwarf of Wheat, Oats, and Barley PLPATH-CER-01 wheat, oats, barley, barley yellow dwarf
Oak Wilt PLPATH-TREE-02 oak, oak wilt, oak tree disease, oak tree fungus, oak infection, treating oak wilt disease, nitidulid beetles
Dutch Elm Disease PLPATH-TREE-04 elm, dutch elm disease, insecticides for dutch elm disease, american elm tree fungal pathogen, treating dutch elm disease, managing dutch elm disease, elm bark beetles, bark beetle larvae
Sudden Oak Death (aka Ramorum blight) PLPATH-TREE-05 oak, sudden oak death, ramorum blight
Diplodia Tip Blight of Two-Needled Pines PLPATH-TREE-03 pine trees, diplodia tip blight, pine tree disease, infected pine tree, pine tree fungus, dead pine needles, pine branches dying
Cherry Leaf Spot PLPATH-FRU-40 cherry, leaf spot, cherry leaf infection, cherry tree leaves turning yellow, cherry tree fungus
Scab of Peach, Nectarine, Plum, and Apricot PLPATH-FRU-39 scab, peach, nectarine, plum, apricot
Bacterial Spot of Stone Fruits PLPATH-FRU-38 bacterial spot, peaches, nectarines, apricots, plums, prunes, cherries
Powdery Mildew of Grape PLPATH-FRU-37 powdery mildew, grape, grape fungus, grape disease, grape infection
Botrytis Fruit Rot “Gray Mold” of Strawberry, Raspberry, and Blackberry PLPATH-FRU-36 botrytis fruit rot, gray mold, fungicides, controlling gray mold, strawberry, raspberry, blackberry, fruit infection, fruit disease
Strawberry Leaf Diseases PLPATH-FRU-35 strawberry, leaf diseases, leaf scorch, leaf spot, leaf blight, ohio strawberry leaf diseases
Red Stele Root Rot of Strawberry PLPATH-FRU-34 red stele root rot, strawberry
Downy Mildew of Grape PLPATH-FRU-33 downy mildew, grape
Black Knot of Plums and Cherries PLPATH-FRU-31 black knot, plums, cherries, black knot fungus, ohio plum and cherry tree disease, apiosporina morbosa
Brown Rot of Stone Fruits PLPATH-FRU-29 brown rot, stone fruits, peach disease, cherry disease, fruit fungus
Spur Blight of Red Raspberries PLPATH-FRU-28 spur blight, red raspberries
Anthracnose of Raspberry and Blackberry PLPATH-FRU-27 anthracnose, raspberries, blackberries, brambles, cane fruits
Peach Canker PLPATH-FRU-25 peach, canker, controlling peach canker, apricot, prune, plum tree, canker symptoms, sweet cherry tree, fungus, disease, infection
Apple Powdery Mildew PLPATH-FRU-21 apple, powdery mildew
Bacterial Crown Gall of Fruit Crops PLPATH-FRU-19 bacterial crown gall, fruit, fruit crop disease in ohio, crown gall bacterium
Phomopsis Leaf Blight and Fruit Rot of Strawberry PLPATH-FRU-18 phomopsis leaf blight, fruit rot, strawberry
Late Leaf Rust of Red Raspberries PLPATH-FRU-17 late leaf rust, red raspberries
Anthracnose of Strawberry PLPATH-FRU-16 anthracnose, strawberry, strawberry fungus, strawberry plant fungicide, strawberry disease management, rotten strawberries, strawberry disease
Anthracnose of Grape PLPATH-FRU-15 anthracnose, grape, grape vineyard fungicide, grape cane lesions, vidal disease, reliance disease, vineyard fungus
Phytophthora Root Rot of Raspberry PLPATH-FRU-14 phytophthora root rot, raspberry, root rot fungicide, red raspberry disease, black raspberry disease, purple raspberries
X-Disease (Mycoplasma disease of peaches and nectarines) PLPATH-FRU-13 x-disease, mycoplasma disease, peaches, nectarines
Eutypa Dieback of Grape PLPATH-FRU-11 eutypa dieback, grape
Cane Blight of Raspberries PLPATH-FRU-10 raspberry, cane blight
Black Rot and Frogeye Leaf Spot of Apple PLPATH-FRU-07 black rot, frogeye leaf spot, apple, crabapple
Mycorrhizae in Urban Landscapes PLPATH-TREE-01 trees, mycorrhizae
Verticillium Wilt of Strawberry PLPATH-FRU-32 verticillium wilt, strawberry, verticillium wilt fungus, infected strawberry plants, strawberry disease, treating strawberry plants
Thousand Cankers Disease PLPATH-TREE-07 walnut trees, thousand cankers disease, invasives
Peach Leaf Curl PLPATH-FRU-26 leaf curl, peach, peach leaf curl, diseased peach and nectarine trees, red warts on peaches, peach fungus, controlling peach leaf curl
Bitter Rot of Grape PLPATH-FRU-08 grape, bitter rot
Necrotic Leaf Blotch of Golden Delicious Apples PLPATH-FRU-12 necrotic leaf blotch, apples, golden delicious necrotic leaf blotch, golden delicious fungicides, golden delicious leaf blotching, golden delicious leaf disease, golden delicious leaf loss
Sooty Blotch and Fly Speck of Apple PLPATH-FRU-41 sooty blotch, fly speck, apple, golden delicious apple disease, grimes apple disease
White Rot and Botryosphaeria Canker of Apple PLPATH-FRU-42 white rot, botryosphaeria canker, apple
Phytophthora Root and Crown Rot of Fruit Trees PLPATH-FRU-06 phytophthora root rot, crown rot, apple, cherry, peach, phytophthora root and crown rot of fruit trees, ohio apple, and peach tree disease, soil fungi
Black Root Rot of Strawberry PLPATH-FRU-05 black root rot, strawberry
Verticillium Wilt of Raspberry PLPATH-FRU-04 verticillium wilt, raspberry, black raspberry disease, red raspberry disease, raspberry fungus
Botrytis Bunch Rot or Gray Mold of Grape PLPATH-FRU-03 botrytis bunch rot, gray mold, grape, infected grapes, shriveled grapes, brown grapes, diseased grapes, controlling grape fungus
Cork Spot and Bitter Pit of Apples PLPATH-FRU-01 apples, cork spot, bitter pit, jonathan spot, cork spot symptoms, jonathan spot symptoms, jonathan spot treatment, treating bitter pit, treating cork spot, bitter pit symptoms, york imperial cork spot, delicious cork spot, golden delicious cork spot
Rust Diseases of Wheat PLPATH-CER-12 wheat, rust diseases, rust diseases of wheat, rust fungi, leaf stripe, stem rust
Powdery Mildew of Wheat PLPATH-CER-11 wheat, powdery mildew, powdery mildew of wheat, wheat disease
Northern Corn Leaf Blight PLPATH-CER-10 corn, northern corn leaf blight
Maize Dwarf Mosaic of Maize PLPATH-CER-09 corn, maize dwarf mosaic
Maize Chlorotic Dwarf of Maize PLPATH-CER-08 corn, maize, maize chlorotic dwarf
Leaf Blotch Diseases of Wheat—Septoria tritici Blotch, Stagonospora nodorum Blotch and Tan Spot PLPATH-CER-07 wheat, leaf blotch, septoria blotch, tab spot, speckled leaf spot, wheat disease, fungicide application
Fusarium Head Blight or Head Scab of Wheat, Barley and other Small Grain Crops PLPATH-CER-06 wheat, barley, small grains, diseased wheat, wheat fungus, fusarium head blight, head scab, fusarium head blight or head scab of wheat, barley and other small grain crops
Gray Leaf Spot of Corn PLPATH-CER-05 corn, gray leaf spot
Gibberella Ear Rot and Mycotoxins in Corn: Sampling, Testing, and Storage PLPATH-CER-04 corn, gibberella ear rot, mycotoxins
Fusarium Head Blight Forecasting System PLPATH-CER-03 wheat, fusarium head blight
Common Rust of Corn PLPATH-CER-02 corn, common rust of corn, common corn rust, corn fungus, corn disease, ohio corn rust disease cycle
Botrytis Gray Mold in Greenhouse Floral Crops HYG-3070 home, yard and garden, plant disease, flowers
Wild Mushrooms PLPATH-GEN-11 home, yard and garden, plant disease, hyg-3303, wild mushrooms, ohio mushrooms, edible mushrooms, mushrooms
Summer Patch on Turfgrass HYG-3082 home, yard and garden, plant disease, lawn and turf
Pruning and Care of Tree Wounds PLPATH-TREE-06 trees, pruning, wounds, caring for tree wounds, preventing tree wounds, maintaining tree health, pruning tree branches
Phomopsis Twig Blight of Blueberry PLPATH-FRU-45 home, yard and garden, plant disease, fruit
Fruit Rots of Blueberry: Alternaria, Anthracnose, and Botrytis PLPATH-FRU-44 home, yard and garden, plant disease, fruit
Angular Leaf Spot of Strawberry (Bacterial Blight) HYG-3212 home, yard and garden, plant disease, fruit
Phomopsis Cane and Leaf Spot of Grape PLPATH-FRU-47 home, yard and garden, plant disease, fruit, phomopsis cane and leaf spot of grape, ohio vineyard disease, vineyard grape vine infection
Mummy Berry of Blueberry PLPATH-FRU-46 home, yard and garden, plant disease, fruit
Brown Spot of Soybeans AC-18 agronomic crops
Sudden Death Syndrome of Soybean AC-44 agronomic crops
Frogeye Leaf Spot of Soybean AC-53 agronomic crops
Inoculants and Soil Amendments for Organic Growers SAG-17 sustainable agriculture
Collecting and Submitting a Turfgrass Sample to the Plant and Pest Diagnostic Clinic HYG-3087 home, yard and garden, plant disease, lawn and turf
Dollar Spot on Turfgrass HYG-3075 home, yard and garden, plant disease, lawn and turf
Slime Molds on Turfgrass HYG-3074 home, yard and garden, plant disease, lawn and turf, slime molds on turf grass
Powdery Mildew on Turfgrass HYG-3081 home, yard and garden, plant disease, lawn and turf, powdery mildew on turf, turf fungus, chemical control of powdery mildew
Gray Leaf Spot on Turfgrass HYG-3083 plant disease, lawn and turf, gray leaf spot on turf grass, grass fungus, gray spot symptoms, turf fungus
Brown Patch on Turfgrass HYG-3084 home, yard and garden, plant disease, lawn and turf
White Pine Blister Rust on Currants and Gooseberries HYG-3205 home, yard and garden, plant disease, black currants, red currants, currants, gooseberries, white pine blister rust
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