Integrated Pest Management
Other Diseases of Trees, Shrubs, and Vines
| Host | Disease | Pathogen | Occurrence |
| Arborvitae | Root rot | Phytophthora spp. | Occasional |
| Ash | Anthracnose | Gloeosporium aridum | Rare |
| Aspen | Aspen leaf spot | Marssonina populi | Widespread |
| Crown gall | Agrobacterium tumefaciens | Widespread | |
| Ink Spot | Ciborinia whetzelii | Mountains | |
| Perennial canker | Cytospora sp. | Widespread | |
| Powdery mildew | Uncinula adunca | Widespread | |
| Rust | Melampsora sp. | Occasional | |
| Shoot blight | Venturia macularis | Occasional | |
| White rot | Ganoderma applanatum | Widespread | |
| White trunk rot | Phellinus tremulae | Widespread | |
| Birch | Perennial canker | Cytospora chrysosperma | Widespread |
| Catalpa | Wilt | Verticillium albo-atrum | Widespread |
| Chokecherry | Black knot | Apiosporina morbosum | Widespread |
| Plum pocket | Taphrina sp. | Occasional | |
| Powdery mildew | Podosphaera oxycanthae | Occasional | |
| Western X | phytoplasma | Widespread | |
| Conifers | Root rot | Phytophthora sp. | Widespread |
| Seedling root rot | Fusarium, Pythium | Occasional | |
| Cotoneaster | Fire blight | Erwinia amylovora | Widespread |
| Root rot | Phytophthora spp. | Widespread | |
| Crab Apple | Fire blight | Erwinia amylovora | Widespread |
| Powdery mildew | Podosphaera leucotricha | Widespread | |
| Elm | Dutch elm disease | Ceratocystis ulmi | Northern Utah |
| Slime flux, wetwood | bacterial complex | Widespread | |
| Wilt | Verticillium albo-atrum | Salt Lake | |
| Euonymus | Chlorosis, scorch | nitrogen deficiency | Widespread |
| Crown gall | Agrobacterium tumefaciens | Widespread | |
| Powdery mildew | Microsphaera alni | Widespread | |
| Root rot | Phytophthora spp. | Widespread | |
| Fir (see also “conifers”) |
Dwarf mistletoe | Arceuthobium campylopodum | Occasional |
| Red ring rot | Phellinus pini | Widespread | |
| Fir broom rust | Melampsorella caryophyllacearum | Widespread | |
| Forsythia | Crown gall | Agrobacterium tumefaciens | Widespread |
| Goldenrain tree | Nectria canker | Nectria spp. | Occasional |
| Wilt | Verticillium albo-atrum | Occasional | |
| Hawthorn | Fire blight | Erwinia amylovora | Widespread |
| Leaf spot | Entomosporium sp. | Occasional | |
| Rust | Gymnosporangium nidus-avis | Widespread | |
| Honeylocust | Canker | Thyronectria austroamericana | Occasional |
| Juniper ("cedar") |
Root rot | Phytophthora spp. | Widespread |
| Rust | Gymnosporangium spp. | Occasional | |
| Lilac | Bacterial blast | Pseudomonas syringae | Occasional |
| Powdery mildew | Microsphaera; Phyllactinia | Widespread | |
| Linden | Sooty mold | Saprophytic fungi | Widespread |
| Wilt | Verticillium albo-atrum | Widespread | |
| Maple | Anthracnose | Kabatiella apocryta | Rare |
| Canker | Cytosporella sp. | Cache | |
| Fasciation | genetic, virus? | Occasional | |
| Leaf blister | Taphrina sacchari | Occasional | |
| Leaf tatter | genetic, virus? | Occasional | |
| Edema (oedema) | environmental (high humidity) | Occasional | |
| Tar spot | Rhytisma punctatum | Mountains | |
| Wilt | Verticillium albo-atrum | Widespread | |
| Mountain Ash | Fire blight | Erwinia amylovora | Widespread |
| Perennial canker | Cytospora spp. | Widespread | |
| Oak | Anthracnose | Gnomonia veneta | Salt Lake |
| Leaf blister | Taphrina caerulescens | Occasional | |
| Perennial canker | Cytospora sp. | Occasional | |
| Powdery mildew | Sphaerotheca lanestris | Davis | |
| Pine (see also conifers) |
Western gall rust | Cronartium harkesii | Occasional |
| Poplar | Crown gall | Agrobacterium tumefaciens | Widespread |
| Perennial canker | Cytospora sp. | Widespread | |
| Poplar leafspot | Marssonina populi | Widespread | |
| Root rot | Pythium sp. | Widespread | |
| Slime flux, wetwood | bacterial complex | Widespread | |
| Pyracantha | Fire blight | Erwinia amylovora | Widespread |
| Serviceberry | Rust | Gymnosporangium sp. | Widespread |
| Squaw Bush (Rhus trilobata) |
Leaf spot | Entomosporium sp. | Widespread |
| Wilt | Verticillium albo-atrum | Widespread | |
| Perennial canker | Cytospora sp. | Occasional | |
| Sycamore | Anthracnose | Gnomonia veneta | Widespread |
| Leaf tatter, shothole | insect, Plant bug | Widespread | |
| Powdery mildew | Microsphaera alni | Widespread |
Precautionary Statement: Utah State University and its employees are not responsible for the use, misuse, or damage caused by application or misapplication of products or information mentioned in this document. All pesticides are labeled with ingredients, instructions, and risks, and not all are registered for edible crops. “Restricted use” pesticides may only be applied by a licensed applicator. The pesticide applicator is legally responsible for proper use. USU makes no endorsement of the products listed in this publication.