Q.Disease affecting or killing my hedge a Diosma I think
I really need to know what to spray my hedge with and this disease has spread to other shrubs as well now, I will try again to send photos I sent them before and you did not receive them.my hedge is about11/2 metres tall, I did spray it with triflorine but then I ended up in hospital for three months not related to hedge but the disease continued on, I really do not know what to do? Can you help?

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I can't be certain of what is wrong with your shrubs, but if you suspect pests or fungus you can apply Neem Oil.
Neem Oil is organic and works as both an insecticide and fungicide.
I would prune any brown or dead plant material and dispose of.
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm