I have a diosmas Hedge 1m tall hey have greeny blue spots all over branches and eventually are killing my hedge, I don't know what to treat it with I have tried triflorine but it hasn't stopped it, what else can I use?
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.
Both plants are one year old
Hebes will be pruned, just after flowering for the year. This way the next year's flowering buds will not be destroyed. This article will offer more information on their care: https://www.gardeningknowhow.com/ornamental/shrubs/hebe/hebe-shrubs.htm
Generally, Diosma will also be pruned after bloom, also, but they are very tolerant of pruning at any time.