pittosporum limbs dying

I have some large pittosporum (about 5 ft. across) that are developing some dead patches. It seems that whole limbs are dying while areas next to them are unaffected. Any ideas? I have about 10 of these in my landscape, and about half of them are having this problem.

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1 Comment To "pittosporum limbs dying"

#1 Comment By Downtoearthdigs On 07/25/2015 @ 11:50 am

How is the soil (i.e. drainage, moisture level, etc.)? Have you watered frequently or had a lot of rain? Pittosporum are well known for having issues with root rots, most commonly attributed to Phytophthora. Here is more information: https://www.gardeningknowhow.com/plant-problems/disease/what-is-phytophthora.htm ^[1]

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