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Crabapple Diseases — Plant Diseases — Penn State Extension

extension.psu.edu/pests/plant-diseases/all-fact-sheets/crabapple-diseases

Informational table showing disease name, symptoms, pathogen/cause, and ... Leaves yellow and fall prematurely, giving the tree a thin, bare appearance by ...

Managing apple scab on ornamental trees and shrubs : Yard and ...

www.extension.umn.edu/garden/yard-garden/trees-shrubs/managing-apple-scab/

Scab is caused by the fungus Venturia inaequalis. This fungal pathogen infects several host species including crabapples and apples (Malus spp.), mountain ...

common diseases of crabapple - CT.gov

www.ct.gov/caes/lib/caes/documents/publications/fact_sheets/plant_pathology_and_ecology/common_diseases_of_crabapple_11-05-12r.pdf

watering during periods of drought. Pruning crabapples in late winter to “open” the canopy of the tree helps to reduce disease by increasing air circulation, which  ...

Crabapple trees - TreeHelp.com

www.treehelp.com/crabapple/

A long article covering recommended varieties, cultivation, and common pests and diseases.

Crabapple Tree Disease | Home Guides | SF Gate

homeguides.sfgate.com/crabapple-tree-disease-55223.html

Choosing crabapple tree (Malus spp.) cultivars resistant to the diseases known to thrive in your area is the best way to prevent disease. For example, hardy in ...

Leaf Fungus on Flowering Crabapple Trees | Home Guides | SF Gate

homeguides.sfgate.com/leaf-fungus-flowering-crabapple-trees-41619.html

Maintaining consistent, optimal care of flowering crabapple trees gives them a greater ability to avoid and recover from diseases. For best flowering and fruit ...

Diseases of Crabapples - Tree Services

www.treeservicesmagazine.com/columns/tools-techniques/diseases-of-crabapples/

Mar 1, 2009 ... Foliage diseases. Many foliar diseases can plague crabapples; below are the three most common: Apple scab: Apple scab is favored by cool, ...

Apple Scab, Crabapple Tree Disease | Chicago Botanic Garden

www.chicagobotanic.org/plantinfo/faq/apple_scab_crabapple_tree_disease

Q. My crabapple trees (and those of many of my neighbors) have suffered from a disfiguring disease for several years.

Apple Scab Causes Naked Crabapple Trees | News

www.extension.iastate.edu/news/2007/jul/062704.htm

Jul 30, 2007 ... Across Iowa, crabapple trees have been dropping leaves this summer. ... The answer is a fungal disease called apple scab. A fungus called ...

What Can I Do if the Leaves on My Crabapple Tree are Turning ...

www.bhg.com/gardening/pests/insects-diseases-weeds/what-can-i-do-if-the-leaves-on-my-crabapple-tree-are-turning-yellow-and-brown-and-are-covered-with-dark-spots/

It is also possible that your tree has apple scab -- a fungal disease common on apple and crabapple trees that is ugly and prevalent in many parts of the country.