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Anthracnose - A Fungal Disease of Shade Trees
  Anthracnose - A Fungal Disease of Shade Trees
Plant disease of warm humid areas, caused by a fungus (usually Colletotrichum or Gloeosporium). It i


Phomopsis Tip Blight of Juniper
  Phomopsis Tip Blight of Juniper
For most people, the first symptom noticed in the spring (early summer) is the die-back of the new s


Azalea Leaf and Flower Gall
  Azalea Leaf and Flower Gall
The disease will cause pale green, pink white or brown fleshy galls, which are caused by the fungus


Disease of Coneflower
  Disease of Coneflower
Coneflowers may get Pseudomanas or Xanthomonas leaf spot. Powdery mildew will also occur under the


Camellia Leaf Gall
  Camellia Leaf Gall
The disease is caused by the fungus Exobasidium camelliae. The severity of the disease varies ac


Cedar-Apple and Quince Rusts
  Cedar-Apple and Quince Rusts
Cedar-apple rust and quince rust affect two groups of vastly utilized landscape plants. The cedar-ap


Fireblight
  Fireblight
Fireblight is a destructive, highly infectious and widespread disease caused by the bacterium Erwini


Dogwood anthracnose
  Dogwood anthracnose
Dogwood anthracnose is caused by the fungus Discula. Brown, elliptical cankers may form at the


 Dollar Spot
  Dollar Spot
The disease is caused by the fungus Sclerotinia homoeocarpa. Susceptible turfgrass include: all spec


Brown Patch
  Brown Patch
Rhizoctonia solani (teleomorph: Thanatephorus cucumeris) is a plant pathogenic fungus with a wide


Tobacco Mosaic Virus
  Tobacco Mosaic Virus
When Tobacco Mosaic Virus infects a tobacco plant, the virus enters mechanically (For example throug


Elm Disease
  Elm Disease


Powdery mildew
  Powdery mildew
Powdery mildew is a fungal disease that affects a wide range of plants. Powdery mildew diseases are


White rot root disease - Honey fungus or Armillaria
  White rot root disease - Honey fungus or Armillaria
Honey fungus or Armillaria is a genus of parasitic fungi that live on trees and woody shrubs. It inc


Early blight
  Early blight
Alternaria solani is a fungal pathogen, producing a disease in tomato and potato plants called early


Corn smut
  Corn smut
Corn smut is a disease of maize caused by the pathogenic plant fungus Ustilago maydis. I


Clubroot
  Clubroot
Clubroot is a common disease of cabbages, radishes, turnips and other plants belonging to the family


Unknown Plant Disease
  Unknown Plant Disease
http://www.forestryimages.org/search/action.cfm?q=symptoms&a
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Red Blister Leaf Disease
  Red Blister Leaf Disease
Maybe Plum leaf blister (Polystigma rubrum) - Red leaf spots


Red Blister Plant Disease
  Red Blister Plant Disease
Cedar Apple Rust - Gymnosporangium juniperi-virginianae


Purple Leaf Blister - Plant Disease
  Purple Leaf Blister - Plant Disease


Red and White Tree Lichen
  Red and White Tree Lichen
Red and White Tree Lichen Spots


Unknown Plant Disease
  Unknown Plant Disease


Oak Blister
  Oak Blister


Cercospora Leaf Spot, Narrow Brown Leaf Spot
  Cercospora Leaf Spot, Narrow Brown Leaf Spot
Hydrangea macrophylla Plant infected with Cercospora Leaf Spot. Cercospora Leaf Spot is a common d


Unknown Fungus, Unknown Plant
  Unknown Fungus, Unknown Plant
Unknown Fungus, Unknown Plant


Leaf Miner
  Leaf Miner


Unknown Plant Disease
  Unknown Plant Disease


Spotted, Yellow Iris Leaves
  Spotted, Yellow Iris Leaves


Unnamed
  Unnamed
My yellow straight neck squash plant has been healthy and producing. Today when I examined my garden


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