Q.Balsam fir trees
A forty year old balsam fir is showing signs of decline. Foliage is patchie and some limbs are bare of needles. Is this a recognized condition?
Downtoearthdigs
Answered on June 21, 2018
This could be a needle cast disease.
This article will help.
https://www.fs.usda.gov/naspf/sites/default/files/publications/na-fr-02-96how_to_identify_and_manage_needlecast_diseases_on_balsam_fir.pdf
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