Are You Able To Let Me Know What Is Wrong With This Shrub Please? Apologies I Have No Idea What The Plant Is Called Either.

Question

It seems to be affecting to new growth where the flower buds are only

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Answer 1

It seems odd that the flower buds don't seem affected but they may not bloom. This article should help:

https://www.gardeningknowhow.com/plant-problems/disease/new-growth-dying.htm