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What is Rhizosphaera Needle Cast and Can It Be Treated?

Updated: Apr 19, 2022

Rhizosphaera needle cast is a tree disease that affects Colorado blue spruce trees. Trees start dying from the inside out, and slowly get thinner and thinner. Learn about Rhizosphaera needle cast and how it can be treated from certified arborist August Hoppe, president of Hoppe Tree Service.

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