Honey fungus resistance

[sloth]

Hi all, apart from the list on p.146, Diagnosis of Ill Health in Trees, does anyone know of any similar lists for Armillaria resistant tree species?

Thanks in advance...

[Andyd1606]

This is the PDF file I use found on the RHS website https://www.rhs.org.uk/advice/pdfs/honey-fungus-host-list-march-2014

[David Humphries]

The RHs list given above is the most complete I've come across also...

 

Page 142 in my copy of S&W but that's an old one.

 

This list below is from Paul Hamlyn's 2001 article entitled - Honey Fungus - Friend or Foe?

 

'Resistant plants'

 

.......Box elder, Californian black walnut and yew seem to be virtually immune. Other resistant species include Grand and Noble fir, bamboos, hornbeam, beech, ash, Common ivy, junipers, larch, Cherry laurel, oaks, False acacia and whitebeam .'

 

 

Not as extensive as the RFS and Strouts and Winter lists

 

 

.

[sloth]

Thanks guys, knew I could count on you

[detritus21]

I would argue some of the resistant species most certainly aren't. Particularly ash having removed some with both rhizomorphs and active mycelium.

[Paul Cleaver]

ive seen Robinia "frisia" killed by it

[David Humphries]

I would argue some of the resistant species most certainly aren't. Particularly ash having removed some with both rhizomorphs and active mycelium.

 

I would tend to agree that the lists should not be taken as being species that are completely resistant to Armilaria.

 

They're more likely to show some resistance compared to others.

 

 

 

.

[daltontrees]

I have had this list for a while

guernsey honey fungus.pdf

[kevinjohnsonmbe]

This is slightly tangential but does anyone have a view on this:

 

AA Field Guide Fungi on Trees page 12, Impact/Effect/Significance paragraph

 

"...The fungus can spread from colonised stumps and roots to surrounding trees, particularly if there is a lack of natural suppression, in the form of fallen deadwood, colonised by other (beneficial) decay fungi performing natural control..."

 

Would it be a fair/sound assumption that installing stacked deadwood in the vicinity of Honey fungus infected trees might encourage beneficial control fungi which might have a suppressing effect or might it just provide further growth medium for the Honey fungus???

[sloth]

I suppose the thing with resistance is it isn't an immunity. Funny things fungi, refuse to fit neatly into the boxes us mere mortals assign them to.

Kevin, I guess it could go either way. But I'd have thought an historical accumulation of dead woody material throught the upper soil horizons would be more likely to contain a range of possibly beneficial micro organisms than a pile or two of freshly dead, as yet relatively 'sterile' wood; which Armillaria might quite like to entangle with its rhizomorphs...