Tag Archives: Sphaeropsis tumefaciens

Sphaeropsis Knot Fungus on Holly Trees

If you have any holly trees in your landscape you are encouraged to check them for Sphaeropsis tumefaciens – a fungus that causes galls to form on twigs and branches and witches brooms.  If let alone, can cause tissue necrosis … Continue reading

Posted in Plant Diseases, Plant Pests, Uncategorized | Tagged , | Leave a comment