Twig and branch dieback is extremely common in many juniper plantings in Kentucky. While other factors can be responsible for these general symptoms, Phomopsis twig blight or Kabatina twig blight are often the cause.
This newly revised publication discusses hosts, symptoms, causes, disease development, and management. Because Phomopsis and Kabatina twig blights have a similar appearance, it can be difficult to differentiate between them based on symptoms alone; a table is included that provides information to aid in distinguishing between the two diseases.
Juniper Twig Blights (PPFS-OR-W-11) is available online.
For additional publications on ornamental diseases, visit the UK Plant Pathology Extension Publications webpage.
By Cheryl Kaiser, Plant Pathology Extension Support and Nicole Gauthier, Plant Pathology Extension Specialist