Treating variegated red twig dogwood

Leaves are turning red on established variegated red twig dogwood bushes. What does this mean? Lost one bush already. What can I do to save the others?

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1 Comment To "Treating variegated red twig dogwood"

#1 Comment By Downtoearthdigs On 07/05/2016 @ 8:46 am

Dogwood is effected by a few different diseases.

From your description, I would say it is likely Septora Leaf Spot.
I have listed some links for you that include images to help you pinpoint the cause and determine if treatment is necessary.

http://plantpath.caes.uga.edu/extension/plants/woodyornamentals/SeptoriaLeafSpot.html ^[1]
https://extension.psu.edu/pests/plant-diseases/all-fact-sheets/dogwood-diseases ^[2]
http://www.uaex.edu/publications/pdf/fsa-7564.pdf ^[3]

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URL to article: https://questions.gardeningknowhow.com/treating-varigated-red-twig-dogwood/

URLs in this post:

[1] http://plantpath.caes.uga.edu/extension/plants/woodyornamentals/SeptoriaLeafSpot.html: http://plantpath.caes.uga.edu/extension/plants/woodyornamentals/SeptoriaLeafSpot.html

[2] https://extension.psu.edu/pests/plant-diseases/all-fact-sheets/dogwood-diseases: https://extension.psu.edu/pests/plant-diseases/all-fact-sheets/dogwood-diseases

[3] http://www.uaex.edu/publications/pdf/fsa-7564.pdf: http://www.uaex.edu/publications/pdf/fsa-7564.pdf

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