Tree Diseases

Sphaeropsis

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Sphaeropsis is a fungus that causes shoot blight and cankers on pines in plantations, windbreaks, and ornamental plantings. Most pines are susceptible to infection, especially non-native species such as Austrian pine. Sphaeropsis kills trees by killing the new foliage year after year or by initiating girdling cankers on branches and stems of stressed trees. Shoot blight and branch and stem cankers are the most common symptoms of Sphaeropsis. Shoot blight is common on trees of all ages, but cankers are more prevalent in saplings and pole sized trees. All symptoms are generally characterized by conspicuous amounts of resin.

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