Woody22

im no expert of the area of phytophthora, as i only know what i have seen or what little i have been told but from what i have seen are: lots of small bleeding black cancers, hard to spot from the ground, the branch had no leaves and clearly dead. the are no pruning wounds and the cambium is what is affected while the sap and heartwood is unaffected, i assuming it kills of the xylem and phloem and prevents nutrient transport but dnt quote me on this. what i did find was the cambium was very wet and and very dark crimson red, almost black but as you said, it could quite possibly be vascular wilt disease. Keep us posted, would be very interested to find what the cause was.

have you conducted a climbing inspection because i was working upon a willow not long ago with a whole branch dead while the rest was perfectly heathly and turned out that had a type of phytopera (sorry if spelt wrong) and had killed the entire branch in a matter of weeks. just food for thought.

haha bad times, still, we got there, anyway, what would your reponce be to seeing the G resinaceum on the tree harrison? it would be very useful for my research. cheers mate.

sorry, i meant the picture of the bracket at the top, not the fine specimin you presented

haha this just complicates matters cos i think its a Ganoderma resinaceum,

just been out to test this theory on a resinaceum, i tryed it on one bracket that was confirmed resinaceum and it reacted by glazing over and smelling of burn sugar and other sweet things. The bracket pictured above just burnt! my theory is that i have either got the bracket identifyed wrong or the age of the bracket effects the effects the quality. any suggestiong hama? does you also specialise in such decay techniques and mycology because those are the fields i am very interested in and any advise for entering those fields would be useful.

personaly, i would agree, im pritty sure its pfeifferi, but one way to check this is take a lighter and burn the top of the bracket, if the top bubbles and looks like its melting, that would confurm it. a quick trick my lecture taught me.

I’m currently a student studying arboriculture and was wondering if I could ask you guys to answer a question for my research into Ganoderma fungal brackets and how they affect the tree. Below is a Ganoderma resinaceum that I found, on a mature oak tree in a back garden. The tree is showing slight signs of dieback in the upper canopy but overall looks healthy with good size and shape providing high amenity for the surrounding houses. No other brackets are on this tree and the soil around the tree is in good condition and well watered with little competition for light or nutrients. There is space around the tree for an easy felling job (no green houses or ponds to destroy) with good access via road for removal. If the tree fell it could damage a house if fell in the wrong direction but the owners want the opinion of an arborist over the matter. What would your response be to seeing this Ganoderma on the tree and the detail provided? 1. Fell 2. Canopy reduction of the tree to remove deadwood or 3. Test the tree for rot using resistograph or other such equipment 4. Leave the tree but continue to inspect for further signs of dieback or other symptoms over the next few years 5. Take other action (please provide details) Cheers lads