Dothistroma Needle Blight

Plants Affected:

Images of This Plant Disease:

Image of Dothistroma on an Austrian Pine

Dothistroma on an Austrian Pine

Closeup image of Dothistroma on an Austrian Pine

Close up of Dothistroma on an Austrian Pine

Image of Dothistroma on the needles of an Austrian Pine

Dothistroma on the needles of an Austrian Pine

Overview

Dothistroma needle blight is especially common on Austrian pines.

Types of Samples Needed for Diagnosis and Confirmation

Collect 3 to 5 twigs. For further information go to Woody Plants Sample Collection.  

Signs and Symptoms

Affected needles develop brown bands, and the portion of the needle beyond the band dies. Trees are often affected from the bottom of the canopy working up.

See this article about Dothistroma needle blight.