Bartlett Tree Experts' Collection of Technical Publications on Tree Pathology
A collection of 17 informative publications covering a wide range of tree diseases from Anthracnose to Verticillium Wilt [2519]
Forest & Shade Tree Pathology
An excellent site put together by Dr. James Worrall. Includes a wealth of information on diseases, a calendar of pathology-related events and a web log of current pathology observations. [2412]
USDA Forest Health Protection Home Page
Provides information on forest health management, technology tevelopment, technical assistance, fact sheets, news, issue papers, and other links to forest health resources. [2396]
Noninfectious Diseases of Trees, Identification and Control
An illustrated guide to dealing with a variety of noninfectious diseases and injuries, including injuries caused by weather extremes and chemicals, provided by the St. Paul Field Office of the USDA Forest Service. [191]
APSnet: Plant Pathology On-Line
Presented by the American Phytopathological Society, this page provides a wide number of resources on plant diseases. [161]
Anthracnose of Shade Trees
An article that originally appeared in the June 9, 1995 issue of Horticulture and Home Pest News, presented by Iowa State University. [159]
Apple Scab
A short but helpful discussion of this disease, prevention, and recommended treatment, provided by the Kansas State University Cooperative Extension Service. [160]
Armillaria Root Disease
A guide to detection and diagnosis, infection patterns, and management of this fungal disease, provided by the USDA Forest Service. [162]
Ash Yellows in Forest Stands and Home Landscapes
An illustrated guide to the distribution, symptoms, diagnosis, disease cycle, and management of this recently discovered disease, provided by the St. Paul Office of the USDA Forest Service. [163]
Bacterial Leaf Scorch of Shade Trees
This helpful illustrated paper on leaf scorch is provided by the US National Arboretum. [2421]
Bacterial Spot of Peach
A brief and helpful description of this disease and recommendations for prevention, provided by the Kansas State University Cooperative Extension Service. [164]
Botryosphaeria Canker of Juniper
An illustrated description of canker diseases on juniper, their cause, and recommendations for treatment and prevention. Provided by the Kansas State University Cooperative Extension Service. [165]
Cedar-Apple Rust
An article that originally appeared in the April 28, 1993 issue of Horticulture and Home Pest News, presented by Iowa State University. [168]
Control of Fire Blight on Fruit Trees
Presented by the University of Saskatchewan, this guide describes the symptoms, transmission, control, and prevention of fire blight. [170]
Crown Gall
Describes the symptoms, causes, and treatment of this bacterial disease; provided by the Washington State University extension. [171]
Description, Diagnosis and Management
Description, Diagnosis and Management of Dutch Elm disease. Provided by the Rainbow Treecare experts.
[2383]
Diagnostic Keys to Major Tree Fruit Diseases in the Mid-Atlantic Region
A comprehensive diagnostic resource, complete with photos, provided by West Virginia University. [172]
Diplodia Shoot Blight of Pines
Information on this damaging disease of Austrian, ponderosa, and Scotch pines, as well as other pine and evergreen species. Presented by the South Dakota Cooperative Extension Service. [586]
Diplodia Tip Blight of Pines
A guide to the distribution, symptoms and damage, disease cycle, and control of this fungal disease that is damaging to plantings of both exotic and native pine species, provided by the Cooperative Extension Service of Purdue University. [173]
Diseases of Apples
Information on a variety of diseases, provided by the Tree Fruit Research and Extension Center at Washington State University. [174]
Diseases of Stone Fruits
A series of painting depicting various diseases of stone fruits [175]
Dogwood Anthracnose
Describes the symptoms and control of this fungal disease; provided by the Washington State University extension. [177]
Dothistroma Needle Blight of Pines
A guide to the symptoms, life cycle, and control of this devastating foliar disease of a wide range of pine species, provided by the USDA Forest Service. [178]
Dutch Elm Disease
Disease fact sheet presented by the Kansas State University Research and Extension, Plant Pathology. [179]
Field and Laboratory Guide to Tree Pathology
by Robert O. Blanchard, Terry A. Tattar
Provides an introduction to representative tree diseases commonly found in North America. In order to make the text "student-friendly," the authors treat relatively few tree pathogens and hosts and keep their discussions brief and general. For each disease covered, the authors provide a name, a definition, and information concerning the primary causal agents, hosts, history, symptomatology, etiology, and control. For most diseases, they include a diagram of the disease cycle and b&w photos of representative symptoms and signals [1167]
ForesTree
This website is provided for homeowners who live in a western forested area. It is intended to provide a way for those homeowners to identify pest and disease problems that might occur on their native trees and to help them with general information and sources of further assistance. If you know the type of pest or disease, select it from the list. If not, this site will assist you in identifying it and your tree. [2830]
Fruit Disease Photographs, Biology, and Monitoring Information
A collection of photos and data sheets on a wide variety of tree fruit diseases. [182]
Fruit Pathology
A wealth of information on a variety of diseases, provided by the Tree Fruit Research and Extension Center at Washington State University. [176]
How to Identify and Manage Dutch Elm Disease
A good source of information on this disease, put together by the USDA Forest Service, Northeastern Area State and Private Forestry (St. Paul Field Office) [2409]
Hypoxylon Canker of Aspen
A description of the hosts, life cycle, and symptoms associated with the Hypoxylon canker fungus, with information on control of the fungus. [184]
Identification of Disease Complexes: Tree Pests and Diseases
Presented as part of a class at the University of Maine, this site provides detailed information on disease complexes, as well as quizzes to check your understanding. [185]
International Society for Horticultural Science Working Group on Fire Blight
This group was founded in 1976 to provide information on all aspects of the study of Fire blight, erwinia amylovora. [1202]
Juniper Diseases
A beautifully illustrated guide that discusses the symptoms, treatment and resistance of junipers in relation to various diseases, including tip blight, needle blights, rusts, cankers, root diseases, and winter injuries. Includes an extensive species chart [186]
New, Emerging, and Re-emerging Bacterial Plant Diseases
A list of plant disease sightings, compiled and maintained by the Department of Plant Pathology and the Plant Disease and Insect Clinic of North Carolina State University. [187]
New, Emerging, and Re-emerging Viral Plant Diseases
A list of plant disease sightings, compiled and maintained by the Department of Plant Pathology and the Plant Disease and Insect Clinic of North Carolina State University. [189]
New, Re-emerging Nematode Plant Diseases
A list of plant disease sightings, compiled and maintained by the Department of Plant Pathology and the Plant Disease and Insect Clinic of North Carolina State University. [190]
Nursery Diseases of Western Conifers
Illustrated information on a wide variety of diseases that attack conifers in nurseries, provided by the USDA Forest Service. [192]
Oak Decline
Periodic occurrences of decline and death of oaks over widespread areas have been rccorded since 1900. These outbreaks are caused by a complex interaction of environmental stresses and pests. This illustrated guide explains the factors involved, how to di [193]
Oak Wilt
Description, Diagnosis and Management of Oak Wilt disease. Provided by the Rainbow Treecare experts. [2384]
Phomopsis Canker of Russian Olive
A description of the symptoms, disease cycle, and control of cankers on Russian Olives. Provided by the Kansas State University Cooperative Extension Service. [194]
Pine Wilt
A discussion of the cause, symptoms, disease cycle, diagnosis, and control of this disease. Provided by the Kansas State University Cooperative Extension Service. [195]
Plant Pathology Information
An index of factsheets on tree diseases in North Carolina. Presented by North Carolina State University. [374]
Powdery Mildew of Cherry
Describes the pathogen, symptoms, disease cycle, and control of this fungal disease. [196]
Pseudomonas Blight of Trees and Shrubs
A discussion of the symptoms, development, and control of this disease. Provided by the Kansas State University Cooperative Extension Service. [198]
Research for Seedling Resistance to White Pine BlisterRust
A Forest Health Protection Alert presented by the USDA Forest Service, focusing on their activities in response to white pine blister rust in various northwest states. [200]
Rhizosphaera Needle Disease of Fir
Illustrated information on this disease which often attacks Christmas Tree plantations, provided by the Northeastern Area division of the USDA Forest Service. [202]
Scab on Crabapples
An article that originally appeared in the June 9, 1995 issue of Horticulture and Home Pest News, presented by Iowa State University. [203]
Scleroderris Canker of Northern Conifers
Illustrated information on this fungal canker which attacks conifers, provided by the USDA Forest Service. [204]
Spring Cleanup for Disease Management
An article that originally appeared in the April 28, 1993 issue of Horticulture and Home Pest News, presented by Iowa State University. [206]
Stem Rusts of Jack Pine, Identification and Control
An illustrated guide to the control of this disease, provided by the St. Paul Field Office of the USDA Forest Service. [207]
Sycamore Anthracnose
Sycamore Anthracnose Description, Diagnosis and Management. Provided by Rainbow Treecare experts [2382]
Texas Plant Disease Handbook
Information on various plant diseases in Texas, presented by the Texas Agricultural Extension Service. [436]
The Mistletoe Center
Presented by the USDA Forest Service Rocky Mountain Research Station, Flagstaff Lab, this site supports research and technology transfer with regards to the lore, use, biology, and management of mistletoes. [1289]
The Trouble with Juniper
Describes a number of problems that can harm juniper in western Washington, including treatment suggestions for each problem. Provided by the Washington State University extension. [208]
The University Experiment Farm at Kearneysville
A tree fruit research and education center; its web page provides an index of photographs, biology, and monitoring information for major tree fruit diseases. [209]
Tree Fruit Web Sites of Interest to Commercial & Home Tree Fruit Producers.
This site contains a collection of links, organized by geographic region, addressing fruit tree issues such as diseases and insects. [210]
Tree Rusts: The Peridium
Presented by the USDA Forest Service Rocky Mountain Research Station, Flagstaff Lab, this site supports research and technology transfer for studies on tree rusts of the order Uredinales. [212]
Verticillium Wilt of Trees
A description of the symptoms, disease cycle, and control of wilt caused by the fungus Verticillium dahliae. Provided by the Kansas State University Cooperative Extension Service. [215]
Verticillium wilt in tree species
Gives information on participants and research in an EU-funded project on Verticillium wilt in trees. Contains full text of a Compendium on Verticillium wilt in tree species
[2570]
Walnut Anthracnose
Illustrated information on this fungal disease that attacks walnut species, provided by the USDA Forest Service. [216]
Washington State University Tree Fruit Research and Extension Center
Conducts research projects in a variety of topics related to orchard culture, pest control, fruit harvesting and handling, fruit maturity, storage, grading, and packaging. [217]
Winter hardiness of deciduous fruit trees
A guideline for helping deciduous fruit trees make it through cold winters. Provided by Washington State University and geared toward Washington's weather. [219]
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