Other Diseases of Fruit Trees

    Other Diseases of Fruit Trees

    HOST DISEASE PATHOGEN OCCURRENCE  
    Apple Apple scab Venturia inaequalis Occasional
      Bitter pit physiological Widespread
      Blister bark genetic Occasional
      Crown gall Agrobacterium tumefaciens Widespread
      Crown rot/collar rot Phytophthora cactorum Widespread
      Fire blight Erwinia amylovora Widespread
      Jonathon spot Calcium deficiency Widespread
      Perennial canker Cytospora sp. Widespread
      Powdery mildew Podosphaera leucotricha Widespread
    Apricot Bacterial canker Pseudomonas syringae Widespread
      Brown rot Monilinia spp. Occasional
      Coryneum blight or shothole Wilsonomyces carpophilus Widespread
      Crown gall Agrobacterium tumefaciens Widespread
      Crown rot/collar rot Phytophthora spp. Occasional
      Powdery mildew Sphaerotheca pannosa Occasional
      Prunus ring spot virus Occasional
    Cherry Bacterial blight Pseudomonas syringae Widespread
      Coryneum blight Wilsonomyces carpophilus Occasional
      Crown gall Agrobacterium tumefaciens Widespread
      Crown rot/collar rot Phytophthora spp.  Widespread
      Deep suture genetic Occasional 
      Cherry leaf spot Blumeriella jaapii Salt Lake (rare)
      Lesion nematode Pratylenchus spp. Occasional
      Perennial canker Cytospora sp.  Widespread
      Powdery mildew Podoshpaera oxycanthae Widespread
      Prunus ring spot virus Widespread
      Rugose mosaic virus Utah
      Sour cherry yellows virus Widespread
      Wilt Verticillium dahliae  
      Western X phytoplasma Northern Utah
    Peach and Nectarine Brown rot Monilinia fructicola Rare
      Coryneum blight or shothole Wilsonomyces carpophilus Widespread
      Crown gall Agrobacterium tumefaciens Widespread
      Leaf curl Taphrina deformans Rare
      Perennial canker Cytospora sp. Widespread
      Powdery mildew Sphaerotheca pannosa Occasional
      Rusty spot Podosphaera leucotricha Occasional
      Silver leaf Stereum purpureum Rare
      Wilt Verticillium dahliae Occasional
    Pear Fire blight Erwinia amylovora Widespread
      Pear decline phytoplasma Utah
      Perennial canker Cytospora sp. Widespread
      Powdery mildew Podosphaera leucotricha Occasional
    Plum/Prune Crown gall Agrobacterium tumefaciens Widespread
      Perennial canker Cytospora sp. Widespread
      Plum pockets Taphrina pruni Rare
      Prunus ring spot virus Occasional
     Precautionary Statement: All pesticides have benefits and risks, however following the label will maximize the benefits and reduce risks. Pay attention to the directions for use and follow precautionary statements. Pesticide labels are considered legal documents containing instructions and limitations. Inconsistent use of the product or disregarding the label is a violation of both federal and state laws. The pesticide applicator is legally responsible for proper use. This publication is issued in furtherance of Cooperative Extension work. Acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture, Vice President for Extension and Agriculture, Utah State University.