Canker Diseases - Conifers
Sirococcus Shoot Blight of Pines
Shoot dieback caused by Sirococcus
Needles on the infected shoot often droop.
Pycnidia, black structures, are found all over the older dead needles.
Department of Plant Pathology | 495 Borlaug Hall 1991 Upper Buford Circle | St. Paul, MN 55108 (612) 625-8200 | Fax: (612) 625-9728 | firstname.lastname@example.org