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White fungal or pest growth on juniper bonsai?

  • Joy103
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White fungal or pest growth on juniper bonsai? was created by Joy103

Posted 3 years 4 months ago #64078
I have a juniperus procumbens nana bonsai tree. I got it as a gift in June 2020 and it was growing really well, but is probably only several years old. A week ago, I saw this white growth with a brown spot in the middle showing up on several of the leaves. :( I’m not sure it’s Leaf Spot or some kind of pest? It looks like a fungus but also like larvae. Pictures attached. I’ve used Neem Oil earlier this week and again today. Please if anyone can help identify the fungus/pest and recommend a fungicide or pesticide that would be greatly appreciated!
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Last Edit:3 years 4 months ago by Joy103

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Last edit: 3 years 4 months ago by Joy103.

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  • leatherback
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Replied by leatherback on topic White fungal or pest growth on juniper bonsai?

Posted 3 years 4 months ago #64083
Looks like juniper scale to me.
Treat as you would any scale.
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Replied by Joy103 on topic White fungal or pest growth on juniper bonsai?

Posted 3 years 4 months ago #64088
Thanks for identifying! What would you recommend as treatment? I’ve heard various things - diluted dish soap mix and soaking the whole plant, neem oil or other horticultural oil, systemic pesticide... not sure which is best. I plan to also use tweezers and remove the ones I see by hand.
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Replied by leatherback on topic White fungal or pest growth on juniper bonsai?

Posted 3 years 4 months ago #64090
I would use a systemic insecticide for scale. Other methods are less sucessfull for me.
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