Leaves and branches are black

Question

Have cut it right back but have noticed the new growth and the leaves are part green but mainly black. Initially, I saw white marks on the black branches that spread and now the branches are black.

Answer 1

This description could be insects and or fungus issues.

Generally infected material should be trimmed away and disposed of.

Neem Oil is a good treatment as is works as both an insecticide and fungicide.

It is also safe for people, pets and bees.

https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm