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Fungus Blight on Pear Trees

Updated February 21, 2017

Pear leaf blight or pear leaf spot is a disease brought on by the fungus Fabraea maculata. Pears produced on trees suffering from leaf blight will be cracked, misshapen or deformed and therefore unmarketable.

Cause

Pear leaf blight is caused by the fungus Fabraea maculata, which also causes leaf blight in apples, quinces and other tree fruits. Cool, moist weather in the early spring when trees are budding may promote leaf blight.

Signs

Pear trees suffering from leaf blight may have dark black or brown splotches on their leaves. As the disease worsens, more spots will appear until the leaves fall off the tree.

Type

According to horticulturists at the University of West Virginia, nearly all types of European pears may be susceptible to leaf blight caused by fungus.

Treatment

Approved fungicides can be used to treat pear leaf blight. Before spraying, check with your local county extension office for a list of approved fungicides for your location.

Tip

Old fallen leaves and tree cuttings can harbour fungus, so remove all clippings or tree waste to a garbage bin to maintain a healthy growing environment.

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A successful website writer since 1998, Elton Dunn has demonstrated experience with technology, information retrieval, usability and user experience, social media, cloud computing, and small business needs. Dunn holds a degree from UCSF and formerly worked as professional chef. Dunn has ghostwritten thousands of blog posts, newsletter articles, website copy, press releases and product descriptions. He specializes in developing informational articles on topics including food, nutrition, fitness, health and pets.