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our burford holly shrubs have developed rosette clustered leaves

These clustered leaves are on many of the plants. They are small shrivelled and some have turned dark.

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1 Comment To "our burford holly shrubs have developed rosette clustered leaves"

#1 Comment By Heather On 03/26/2012 @ 9:32 am

It sounds like your holly has developed a condition called witches broom. In warmer climates like yours, it is typically caused by Sphaeropsis tumefaciens.

This article on it should help:

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