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Infected needles show brown spots with dark border and/or dead tips with dark border between dead and healthy portion of the needle.

Paul Bachi, University of Kentucky Research and Education Center, Bugwood.org

Infected needles show brown spots with dark border and/or dead tips with dark border between dead and healthy portion of the needle.

Needles show brown spots with dark border.

Paul Bachi, University of Kentucky Research and Education Center, Bugwood.org

Needles show brown spots with dark border.

Close-up of dead needle tip with black, spore-producing bodies ("acervuli") breaking through needle surface.

Paul Bachi, University of Kentucky Research and Education Center, Bugwood.org

Close-up of dead needle tip with black, spore-producing bodies ("acervuli") breaking through needle surface.

Spores of the anamorph fungus Dothistroma septosporum.

Paul Bachi, University of Kentucky Research and Education Center, Bugwood.org

Spores of the anamorph fungus Dothistroma septosporum.

Infected needles show brown spots with dark border and/or dead tips with dark border between dead and healthy portion of the needle.

Infected needles show brown spots with dark border and/or dead tips with dark border between dead and healthy portion of the needle.

Needles show brown spots with dark border.

Needles show brown spots with dark border.

Close-up of dead needle tip with black, spore-producing bodies ("acervuli") breaking through needle surface.

Close-up of dead needle tip with black, spore-producing bodies ("acervuli") breaking through needle surface.

Spores of the anamorph fungus Dothistroma septosporum.

Spores of the anamorph fungus Dothistroma septosporum.