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Hi everybody - Am looking for some assistance re a silver princess gum issue as our silver princess looks to have quite a bad infection, I'm guessing fungal?
It is a mature tree about 5m tall, but the affected leaves are quite widespread and reach high up the tree to near the top. It has been dropping leaves quite a lot for a while.
Would be eternally grateful if anybody could recommend an appropriate treatment.
Thanks - Dan
Thanks Mitchell
Hi @DanD1
IMHO, I think it looks very like a fungal infection that is relatively common among eucalypts. I do not think it is myrtle rust as there does not appear to be any pustules present. This disease is most often seen on the older leaves and is more prevalent when conditions have been humid - fungal diseases are always more common and widespread when humidity is high.
Spraying with a fungicide is not very practical especially on a taller tree. Allowing the soil to dry out a bit is often helpful as is raking up and removing fallen leaves, but generally the trees will survive without any specific treatment.
Oh okay, thanks @Noelle - It seems to be affecting the tree all the way to the top and looks quite bare so I'm worried it is dying. Is there anything else I can do to help the tree?
@DanD1 , probably not much. Eucalypts that look like they are on the way out may often produce new shoots (epicormic growth) from the main branches and trunk, rather like trees damaged by fire will do. It is pretty much a waiting game unfortunately.
Thanks @Noelle appreciate the help - Fingers crossed I guess 😬
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