Viburnum Shrubs
Q.

viburnum foliage diease

Zone Savannah GA | Anonymous added on August 20, 2018 | Answered

Some of the leaves on my 15 foot 10 year old viburnum otorotisurum are sparse ,turning yellow with red.brown spots.They also have red/brown spots on the back of the leaves.It is spreading to nearby viburnums. Is this a fungus? Many leaves have dropped off and are no longer dark green. With what and when should I spray.It has been hot and humid where I live in savannah Georgia. Should I remove as many leaves as I can reach?

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Certified GKH Gardening Expert
Answered on August 21, 2018

This article covers all the major viburnum diseases:
https://www.gardeningknowhow.com/ornamental/shrubs/viburnum/diseases-affecting-viburnums.htm

From your description, it sounds like you have a fungus, either Anthracnose or Cercospora. Here are the articles covering those syndromes:
https://www.gardeningknowhow.com/plant-problems/disease/anthracnose-disease.htm
https://www.gardeningknowhow.com/plant-problems/disease/cercospora-leaf-spot.htm

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