Pest & Disease Factsheet - Bacterial and fungal cankers

[janey]

There's a good article in Hort Week online that's well worth a read.

 

Pest & Disease Factsheet - Bacterial and fungal cankers | Login | Horticulture Week

 

You have to log in or register to see the full text.

[RobArb]

Ta janey, that'll be handy:thumbup:

[Fungus]

There's a good article in Hort Week online that's well worth a read.

Pest & Disease Factsheet - Bacterial and fungal cankers | Login | Horticulture Week

You have to log in or register to see the full text.

 

Janey,

Assuming you have registered, could you give a short resume and/or a list of the bacteria or fungi and the tree species affected, which are included in the article ?

[Fungus]

could you give a resume and/or a list of the bacteria or fungi and the tree species affected, which are included in the article ?

 

Janey,

Thanks, you're the best :thumbup: !

[janey]

Janey,

Thanks, you're the best :thumbup: !

 

Aw, shucks... You're most welcome, hon.

 

I did want to copy and paste the entire article here, but I din't want to fall foul of any copyright issues.

[Fungus]

There's a good article in Hort Week online that's well worth a read. Pest & Disease Factsheet - Bacterial and fungal cankers | Login | Horticulture Week

 

Janey,

So here's my comment on the article then. Although incomplete from a fungal perspective, because the author confines himself to species, which are most important in the nursery situation, the information in the article is correct and should be taken into account.

 

From a mycological and forest ecological viewpoint however, I would like to add some fungal (bark) canker species, which are left out in the article :

 

- Nectria coccinea, often in association with Cryptococcus fagi causing bark canker in Fagus, Populus, Ulmus, Acer, Salix, Fraxinus, Quercus, Betula and Malus.

- Nectria ditissima causing bark canker in Fagus, Alnus, Betula and Pyrus.

- Nectria fuckeliana causing bark canker in Pinus, Picea and Taxus.

- Lachnellula species such as L. occidentalis (= L. hahniana), L. willkommii, L. calyciformis and L. subtillisima, causing bark canker in Larix.

- Pezicula corticola causing bark canker in Malus, Prunus and Pyrus.

- Rusts such as Gymnosporangium sabinea and G. clavariiforme (photo 2), in wintertime causing die back of branches and needles of Juniperus communis.

- Chalaria species, such as Chalara fraxinea, causing bark necrosis and death of (branches of) Fraxinus excelsior.

 

For the symptoms of bleeding canker in Horse chestnut, see : Aesculus bleeding canker.

 

Photo 1 shows an "exploded" 52 years (year rings) old bark canker on a 160 years old beech caused by Nectria galligena.

Photo 2 depicts Gymnosporangium clavariiforme on Juniperus communis.

---

[RobArb]

This is valuable info thanks guys and gals:thumbup:

 

Sent from Rob's GalaxySII

[Tony Croft aka hamadryad]

Janey,

So here's my comment on the article then. Although incomplete from a fungal perspective, because the author confines himself to species, which are most important in the nursery situation, the information in the article is correct and should be taken into account.

 

From a mycological and forest ecological viewpoint however, I would like to add some fungal (bark) canker species, which are left out in the article :

 

- Nectria coccinea, often in association with Cryptococcus fagi causing bark canker in Fagus, Populus, Ulmus, Acer, Salix, Fraxinus, Quercus, Betula and Malus.

- Nectria ditissima causing bark canker in Fagus, Alnus, Betula and Pyrus.

- Nectria fuckeliana causing bark canker in Pinus, Picea and Taxus.

- Lachnellula species such as L. occidentalis (= L. hahniana), L. willkommii, L. calyciformis and L. subtillisima, causing bark canker in Larix.

- Pezicula corticola causing bark canker in Malus, Prunus and Pyrus.

- Rusts such as Gymnosporangium sabinea and G. clavariiforme (photo 2), in wintertime causing die back of branches and needles of Juniperus communis.

- Chalaria species, such as Chalara fraxinea, causing bark necrosis and death of (branches of) Fraxinus excelsior.

 

For the symptoms of bleeding canker in Horse chestnut, see : Aesculus bleeding canker.

 

Photo 1 shows an "exploded" 52 years (year rings) old bark canker on a 160 years old beech caused by Nectria galligena.

Photo 2 depicts Gymnosporangium clavariiforme on Juniperus communis.

---

 

And its posts like this this that prove Gerrits just about the leader in Europe on pathology/ecology, we are all so VERY fortunate to have you here.

 

now i need to write all this down!

[janey]

now i need to write all this down!

 

Do you want me to email you the full article?

[Tony Croft aka hamadryad]

Do you want me to email you the full article?

 

duh! your so blonde sometimes!