Other rusts, leaf spots, sooty moulds

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Other rusts, leaf spots, sooty moulds

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MichaelMulvaney wrote:

2 hrs ago

Thanks Ken - much appreciated

Pinus radiata

KenT wrote:

2 hrs ago

I don't know what this is, Diplodia sapinea is not a rust it is in the family Botryosphaeriaceae (Ascomycota). Diplodia sapinea produces blue staining of the timber (under the bark), the image here appears to show superficial colouration on the bark surface that may or not be associated with a gum exudate. Examination under a microscope may show if there is a microorganism involved. There is a recent paper on Diplodia sapinea here: Wingfield, M.J., Slippers, B., Barnes, I. et al. The Pine Pathogen Diplodia sapinea: Expanding Frontiers. Curr. For. Rep. 11, 2 (2025). https://doi.org/10.1007/s40725-024-00236-2

Pinus radiata

MichaelMulvaney wrote:

3 hrs ago

The only other ACT electronic records are two 1998 records from Pierces Creek

Pinus radiata

MichaelMulvaney wrote:

3 hrs ago

This rust fungus seems well established in Australia so unsure whether this is one that ACT Forestry want to know about. @ACTBiosecurity

Pinus radiata

Mike wrote:

29 May 2025

@ACTBioSecurity, a few years ago we were asked to keep an eye out for a disease in pine trees, causing resin down the trunks. Is this it?

Pinus radiata

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Other rusts, leaf spots, sooty moulds

Other rusts, leaf spots, sooty moulds

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