White-spored Gall Rust

Endocronartium harknessii

Summary 1

Pine-pine gall rust, also known as western gall rust, is a fungal disease of pine trees. This plant disease is caused by Endocronartium harknessii (asexual name is Peridermium harknessii), an autoecious, endocyclic, rust fungus that grows in the vascular cambium of the host. Pine-pine gall rust is found on pine trees (Pinus spp.) with two or three needles such as ponderosa pine, jack pine, and scots pine. The disease is very similar to pine-oak gall rust,...

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  1. (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Endocronartium_harknessii

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