Diseased Plane Trees in Holland|Massaria Fungi|Splanchnonema platani

willem · 23rd July 2008, 01:15 AM

At the moment we are dealing with a disease in Platanus in Holland and Germany. It's called Massaria and is a fungus that can cause branches up to 100 mm to die in a couple of months and break off. Do you know of this disease in Canada? I'll putt some pictures in , so you can see what it look like.

treeseer · 23rd July 2008, 07:08 AM

massaria is related to botryosphaeria? i only found a reference in the journal of mycology but could not access the text--help?

willem · 23rd July 2008, 07:35 AM

Hello treeseer,
The fungus is called Splanchnonema platani. The fungus is part of the Ascomyceten. I'm not familiar with the botryosphaeria your talking about.
The fungus can only be seen from above which makes regular tree inspection difficult. The fungus spread from the south of germany and is in our country since one year. Platanus trees that are experiencing drought stress are more vunerable and so in hot summers it spreads faster. The first branches affected are often low in the crown and shaded out. If the disease progresses big limbs die off and a tree might die. For us in Holland its a big problem because we have a lot of Platanus within citylimits combined with the fast decay of the branches gives trouble. Following are some pictures from Germany, you can see the crowns beeing disformed through loss of branches by Massaria.

treeseer · 23rd July 2008, 11:04 PM

Sounds like a major problem yes. i will be seeing some (southern) german arborists this weekend and see what they are seeing.

Garry Brockley · 24th July 2008, 03:39 AM

has this disease been recorded in britain yet?
i took over the care of a 100ft Platanus x hispanica today a truly beautiful looking tree there were the usual die back on some of the lower limbs but nothing too serious. it is in a park area and been left alone for years to do its own thing.

its due to have work done around it but i have to give final say on how close and deep things can happen. after they killed the Aesculus hippocastanum by severing the roots.

willem · 24th July 2008, 07:37 AM

Hello Galbee,

I think your save on the isle for now. Look for a purple colour on the limbs, one of the first signs is this differance in colour. Furthermore it starts on the upperside of the limb.

Garry Brockley · 24th July 2008, 10:31 AM

thanks i will look out for it.

Eric Frei · 24th July 2008, 10:33 AM

willem

Any idea how is the fungi entering the tree?

pcarborist · 25th July 2008, 05:40 AM

Sinclair et al. calls the conidial state of Massaria platani, Hendersonia desmazierii which causes minor twig dieback and canker of sycamore and plane trees from New Jersey to California. If Massaria platani is a type of fungi that produces more than one type of conidium. It may be possible that Holland and Germany may be experiencing a virulent strain of Massaria platani conidia. Mutant Massaria?

willem · 25th July 2008, 11:18 AM

Quote:

Originally Posted by Ekka

willem

Any idea how is the fungi entering the tree?

Good question Ekka, I don't have a direct answer. I know it starts out in limbs shaded out by the rest of the crown, limbs that are weaker. Also trees that are stressed by drought or any other weaking are more vunerable.
The first time I spotted it was an area where the ground was rockhard because of people walking under the trees and there were recent roadconstructionworks.
How it enters I don't know, I think the spures settle by the wind on the limbs and get a change to develope if the limbs are weak. I'll try to find some beter answers

willem · 25th July 2008, 11:25 AM

Quote:

Originally Posted by pcarborist

Sinclair et al. calls the conidial state of Massaria platani, Hendersonia desmazierii which causes minor twig dieback and canker of sycamore and plane trees from New Jersey to California. If Massaria platani is a type of fungi that produces more than one type of conidium. It may be possible that Holland and Germany may be experiencing a virulent strain of Massaria platani conidia. Mutant Massaria?

Hello pcarborist,

Could you tell me where you got this info, is Sinclair et al. a book? or a website? I would be interested in reading this myself.
The name Massaria platani was first used here but they changed in Splanchnonema platani. Thanks for the info

pcarborist · 25th July 2008, 03:01 PM

Could you tell me where you got this info, is Sinclair et al. a book? or a website? I would be interested in reading this myself.
The name Massaria platani was first used here but they changed in Splanchnonema platani. Thanks for the info
24th July 2008 11:18 PM
willem Quote:

There's not much.
Diseases of Trees and Shrubs, Sinclair, Lyon & Johnson, Cornell Univ Press, 1987.

treevet · 25th July 2008, 03:53 PM

Could Anthracnose be the vector?

Terrywenner · 8th June 2010, 07:26 AM

I have Splanchnonema platanus identified in Sacramento, California on platanus racemosa (California sycamore). I don't know if it can be stopped.

23rd July 2008, 01:15 AM	#1
willem Semi-mature vigorous tree Join Date: Jun 2008 Location: the netherlands Posts: 188	Diseased Plane Trees in Holland\|Massaria Fungi\|Splanchnonema platani At the moment we are dealing with a disease in Platanus in Holland and Germany. It's called Massaria and is a fungus that can cause branches up to 100 mm to die in a couple of months and break off. Do you know of this disease in Canada? I'll putt some pictures in , so you can see what it look like. Attached Thumbnails Last edited by JohN Dee; 23rd July 2008 at 09:52 PM. Reason: Cleaned up the post.

23rd July 2008, 07:08 AM	#2
treeseer Former Member Join Date: Jul 2007 Location: SE USA Posts: 753	Re: dealing with plane trees and the personal health problems they create massaria is related to botryosphaeria? i only found a reference in the journal of mycology but could not access the text--help?

23rd July 2008, 07:35 AM	#3
willem Semi-mature vigorous tree Join Date: Jun 2008 Location: the netherlands Posts: 188	Re: dealing with plane trees and the personal health problems they create Hello treeseer, The fungus is called Splanchnonema platani. The fungus is part of the Ascomyceten. I'm not familiar with the botryosphaeria your talking about. The fungus can only be seen from above which makes regular tree inspection difficult. The fungus spread from the south of germany and is in our country since one year. Platanus trees that are experiencing drought stress are more vunerable and so in hot summers it spreads faster. The first branches affected are often low in the crown and shaded out. If the disease progresses big limbs die off and a tree might die. For us in Holland its a big problem because we have a lot of Platanus within citylimits combined with the fast decay of the branches gives trouble. Following are some pictures from Germany, you can see the crowns beeing disformed through loss of branches by Massaria. Attached Thumbnails Last edited by willem; 23rd July 2008 at 07:40 AM. Reason: forgot the pictures

23rd July 2008, 11:04 PM	#4
treeseer Former Member Join Date: Jul 2007 Location: SE USA Posts: 753	Re: Diseased Plane Trees in Holland\|Massaria Fungi\|Splanchnonema platani Sounds like a major problem yes. i will be seeing some (southern) german arborists this weekend and see what they are seeing.

24th July 2008, 03:39 AM	#5
Garry Brockley Bayside Tree Care Brisbane Join Date: Jun 2008 Location: Brisbane Aus Posts: 1,649	Re: Diseased Plane Trees in Holland\|Massaria Fungi\|Splanchnonema platani has this disease been recorded in britain yet? i took over the care of a 100ft Platanus x hispanica today a truly beautiful looking tree there were the usual die back on some of the lower limbs but nothing too serious. it is in a park area and been left alone for years to do its own thing. its due to have work done around it but i have to give final say on how close and deep things can happen. after they killed the Aesculus hippocastanum by severing the roots. __________________ My business:- Brisbane Bayside Tree Care

24th July 2008, 07:37 AM	#6
willem Semi-mature vigorous tree Join Date: Jun 2008 Location: the netherlands Posts: 188	Re: Diseased Plane Trees in Holland\|Massaria Fungi\|Splanchnonema platani Hello Galbee, I think your save on the isle for now. Look for a purple colour on the limbs, one of the first signs is this differance in colour. Furthermore it starts on the upperside of the limb.

24th July 2008, 10:31 AM	#7
Garry Brockley Bayside Tree Care Brisbane Join Date: Jun 2008 Location: Brisbane Aus Posts: 1,649	Re: Diseased Plane Trees in Holland\|Massaria Fungi\|Splanchnonema platani thanks i will look out for it. __________________ My business:- Brisbane Bayside Tree Care

24th July 2008, 10:33 AM	#8
Eric Frei Admin - Razor sharp and independent 2 X Diploma Level 5 qualified arborist Join Date: Jan 2007 Location: Brisbane Posts: 12,814	Re: Diseased Plane Trees in Holland\|Massaria Fungi\|Splanchnonema platani willem Any idea how is the fungi entering the tree? __________________ Protect your rights to work - Join Australian Tree Association My businesses:- Qualified Brisbane Tree Lopping \| Stump Grinding Brisbane \| Brisbane - Gold Coast Consulting Arborist

25th July 2008, 05:40 AM	#9
pcarborist Semi-mature vigorous tree Join Date: Nov 2007 Location: PC Posts: 177	Re: Diseased Plane Trees in Holland\|Massaria Fungi\|Splanchnonema platani Sinclair et al. calls the conidial state of Massaria platani, Hendersonia desmazierii which causes minor twig dieback and canker of sycamore and plane trees from New Jersey to California. If Massaria platani is a type of fungi that produces more than one type of conidium. It may be possible that Holland and Germany may be experiencing a virulent strain of Massaria platani conidia. Mutant Massaria?

25th July 2008, 03:01 PM	#12
pcarborist Semi-mature vigorous tree Join Date: Nov 2007 Location: PC Posts: 177	Re: Diseased Plane Trees in Holland\|Massaria Fungi\|Splanchnonema platani Could you tell me where you got this info, is Sinclair et al. a book? or a website? I would be interested in reading this myself. The name Massaria platani was first used here but they changed in Splanchnonema platani. Thanks for the info 24th July 2008 11:18 PM willem Quote: There's not much. Diseases of Trees and Shrubs, Sinclair, Lyon & Johnson, Cornell Univ Press, 1987.

25th July 2008, 03:53 PM	#13
treevet Backflipper Join Date: Dec 2007 Location: Cincinnati, Ohio, USA Posts: 2,131	Re: Diseased Plane Trees in Holland\|Massaria Fungi\|Splanchnonema platani Could Anthracnose be the vector?

8th June 2010, 07:26 AM	#14
Terrywenner I'm new here so be nice Join Date: Jun 2010 Location: Sacramento, CA Posts: 1	Re: Diseased Plane Trees in Holland\|Massaria Fungi\|Splanchnonema platani I have Splanchnonema platanus identified in Sacramento, California on platanus racemosa (California sycamore). I don't know if it can be stopped.

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