Viburnum Shrubs
Q.

Viburnum leaves have black spots

Zone Western Sydney | Anonymous added on October 19, 2016 | Answered

I also have some viburnum plants turning yellow from green and appear to be dying. Are the black spots a disease and what should I do? How can I stop viburnums from dying?

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Certified GKH Gardening Expert
Answered on October 20, 2016

Yellowing leaves can be an indication of disease or pests along with the black spots you mention.
The black spots could certainly be a disease called Anthracnose Fungus. Anthracnose Fungus is not usually treated with chemicals but will proper care can be corrected.
If pests of other indications of disease are present, Neem Oil is a good treatment.

Inspect the plants carefully for any other indicators of the problem.
Check watering and remove any dead or diseased branches and dispose of.

https://www.gardeningknowhow.com/plant-problems/disease/anthracnose-disease.htm
https://www.gardeningknowhow.com/plant-problems/environmental/plant-leaves-turn-yellow.htm
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
https://www.gardeningknowhow.com/ornamental/shrubs/viburnum/viburnum-shrub.htm

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