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Pome Fruit Resources

Diagnostic Key | Disease Management | Newsletters | Factsheets | Links |


Introduction - Pome fruits include apples (Malus sp.) and pears (Pyrus sp.). The term "pome" is derived from the botanical name of the fruit produced by these trees. Apples have been cultivated for at least 2000 years with their origins tracing back to Eastern Europe and Western Asia. Pears are divided into European and Asian varieties with the later cultivated for at least 3000 years in China. Interestingly, European pear cultivars are not found anywhere in the wild and have resulted from the cross breading of other wild pear species. Pome fruits are an important commercial crop in New York State, which is the second largest producer of apples and fourth largest producer of pears in the United States.




Disease Management

  Tree Fruit Guidelines

The 2005 Tree Fruit Pest Management Guidelines. To order hard copies contact: The Resource Center, Cornell University, PO Box 3884, Ithaca NY, 14852-3884 or call (607) 255-2080 or E-mail: resctr@cornell.edu.

  

Disease Forecasting - The forecasting section focuses on apple scab and fire blight management

  

Diagnostic Key to Tree Fruit Diseases in the Northeast



Tree Fruit Newsletters

 Scaffolds

Scaffolds is an online and print newsletter that provides weekly updates on pest management and crop development. Scaffolds is published by Cornell University - NYS Agricultural Experiment Station (Geneva) and Ithaca - with the assistance of Cornell Cooperative Extension.


Apple and Pear Disease Factsheets


DISEASE COR WVU OSU PSU OrST UCD
Alternaria Leaf Blotch   html        
Apple Anthracnose         html  
Apple Mosaic Virus   html     html  
Apple Proliferation         html  
Apple Scab html html html html html html
Apple Topworking Disease         html  
Apple Union Necrosis   html   html html  
Armillaria Root Rot           html
Bitter Pit         html  
Bitter Rot   html html html    
Blister Spot   html        
Black Pox   html        
Black Rot   html html html    
Blue Mold   html   html    
Brooks Fruit Spot   html   html    
Bull's Eye Rot         html  
Burr Knot         html  
Cedar Apple Rust pdf html html html    
Crown Gall     html html html  
Fabraea Leaf Spot   html   html    
Fire Blight pdf html html html html html
Flat Apple Disease         html  
Fly Speck pdf html html html    
Green Crinckle Disease         html  
Mucor Rot       html    
Necrotic Leaf Blotch   html html   html  
Nectria Canker   html     html html
Nectria Twig Blight   html   html html  
Nematode, Dagger         html  
Nematode, Root Lesion         html  
Pear Blossom Blast         html html
Pear Decline         html html
Pear Scab   html   html html html
Pear Vein Yellows         html  
Perennial Canker         html  
Phytophthora Root Rot pdf html html html html html
Powdery Mildew pdf html html html html html
Quince Rust   html html html    
Replant Disease         html  
Rubbery Wood and Flat Limb         html  
Russeting         html  
Scar Skin and Dapple Apple         html  
Sooty Blotch pdf html html html    
Southern Blight   html        
Stony Pit   html   html html  
White Rot   html html html    
Wood Rots   html        
X-Spot   html        


Tree Fruit Links

WVU Tree Fruit Home PageKTFREC serves the commercial tree fruit industry of West Virginia through innovative research in plant pathology, entomology and horticulture and through educational programs for fruit growers. Educational resourcesa include a biweekly newsletter, diagnostic services, and this very nice web site, which includes an exceptional set of visual galleries for tree fruit pests, diseases and natural enemies for the North Atlantic Region, as well as links to related insect and disease information.

Pennsylvania Tree Fruit Production Guide is a well-done, comprehensive production guide for all pome and stone fruits. There are individual chapters dealing with orchard establishment, diseases, pests, and their natural enemies, chemical management of insects and diseases, harvest and post-harvest handling of fruit and much more.

University of Maine Apple IPM Program helps apple growers make optimum pest management decisions by providing state-of-the-art information on pest biology, monitoring, and management options. In addition to background information for planning and interpretation, the IPM Program provides updates on the current and upcoming apple pest situation during the growing season.

UMASS Tree Fruit Advisor is focused on fruit growing in Massachusetts.

University of Vermont Apple Program provides relevant and timely horticultural, integrated pest management, marketing and economics information to commercial tree fruit growers in Vermont and beyond.

University of Connecticut Cooperative Extension Integrated Pest Management Program has an extensive website covering many aspects of integrated pest management.  An emerging initiative on this website is the New England Extension Food Safety Consortium Good Agricultural Practices Project which provides information to produce growers on how to reduce microorganisms in fresh fruit and vegetables.

Washington State University Tree Fruit Research and Extension Center is dedicated to the tree fruit sciences. Located in the primary fruit-producing region of the world, the center features a cooperative, multidisciplinary approach to tree fruit production.  Items of interest on this website include sections on entomology, horticulture, plant disease, soil and nutrition, organic and integrated fruit production, and post harvest issues.

Fruit and Nut Network for Commercial Growers is maintained by Oregon State University and includes information on integrated fruit production, organic fruit production, pest management, nutrition and soils, irrigation, economics and finance, marketing and trade, consumers trend, technology and weather.

Ontario Ministry of Agriculture and Food has a great deal of information on all aspects of apple production on their website, including business, cultural, and pest management, fruit harvest and storage and many other topics.

Apple Root Stock Fact Sheets: The apple rootstock genotypes in these fact sheets represent, to the best of our knowledge, all the cultivars available for commercial purchase in the USA. This is a work in progress, and your comments and suggestions are appreciated and will be used in later revisions and refinements of the site. The information presented here was compiled from published descriptions of genotypes, discussions with orchardists, researchers, and nurseries, and unpublished experiments.

Recommended Apple Varieties for Ontario provides information on planting zones, disease resistance and usage of various apple cultivars for the Ontario, Canada region.

Pear Cultivars from the National Plant Germplasm System This site includes listing of all Pyrus germplasm in the National collection as well as being a network for other Pear breeding information.

Market Diseases of Apples, Pears and Quince is a viewable version of USDA ARS Agricultural Handbook No. 376, which is currently out of print.  It has excellent pictures and descriptions. Caution! Some of the chemical information may be out of date!

Pome Fruit Diseases Caused by Viruses This resource from Washing State University (Prosser) provides a listing of Pome fruit Viruses and links to fact sheets on each virus, including excellent images of symptoms.

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Tree Fruit and Berry Pathology
New York State Agricultural Experiment Station
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