Why are my photinia’s leaves having partial discoloration?

Certified GKH Gardening Expert: I believe this to be a fungus that is common to the Photinia.
Here is a link that will help you:

Growing Red Tip Photinia Plants ^[1]

https://www.gardeningknowhow.com/ornamental/shrubs/photinia/photinia-leaf-spot.htm.

I would agree with that but if you notice it isn’t leaf spots, this is what makes me leary about it being a fungus. Any other ideas?

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1 Comment To "Why are my photinia’s leaves having partial discoloration?"

#1 Comment By Downtoearthdigs On 06/15/2015 @ 3:38 am

I’m still fairly certain your dealing with a fungus.
Here are a few more links.

http://www.collierarbor.com/probPhotiniaLeafSpot.php ^[2]

http://herbicidesymptoms.ipm.ucanr.edu/?selectedCrop=172 ^[3]

https://ag.tennessee.edu/EPP/Redbook/3%20Disease%20Control%20for%20Trees,%20Shrubs%20and%20Flowers%20Feb%202014.pdf ^[4]

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URL to article: https://questions.gardeningknowhow.com/why-are-my-photinias-leaves-having-partial-discoloration-2/

URLs in this post:

[1] Growing Red Tip Photinia Plants: https://www.gardeningknowhow.com/ornamental/shrubs/photinia/growing-red-tip-photinia.htm

[2] http://www.collierarbor.com/probPhotiniaLeafSpot.php: http://www.collierarbor.com/probPhotiniaLeafSpot.php

[3] http://herbicidesymptoms.ipm.ucanr.edu/?selectedCrop=172: http://herbicidesymptoms.ipm.ucanr.edu/?selectedCrop=172

[4] https://ag.tennessee.edu/EPP/Redbook/3%20Disease%20Control%20for%20Trees,%20Shrubs%20and%20Flowers%20Feb%202014.pdf: https://ag.tennessee.edu/EPP/Redbook/3%20Disease%20Control%20for%20Trees,%20Shrubs%20and%20Flowers%20Feb%202014.pdf

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