Latest posts by Flowerchild

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problems with pear tree

Posted: 16/09/2014 at 11:37

Hi Buddyboy,

Sorry that it took me so long to reply to you, but we have been on vacation for a couple of weeks. We only returned last weekend and there were some matters that needed handling first.

Now, about Stemphylium vescarium, I have found this document  for you:   https://secure.fera.defra.gov.uk/phiw/riskRegister/viewPestRisks.cfm?cslref=23258 

I couldn't find anything written by the RHS, but if you google on Stemphylium vescarium, there are other documents to be found, although not necessarily about the situation in the UK. But maybe you could ask about it at  the government department that published the document?

Okay, now let's go into  the matter of the "dead" bark and cutting through barriers. In the Netherlands it indeed used to be common practice to take a piece of bark away (not always dead bark) and judge the tree's situation. But over the years, experts have come to the conclusion that this practice more often than not damages the tree more than the wound does.

After intensive experiments at Wageningen University (among others), it became quite clear that, given the time, trees are very capable of healing themselves by overgrowing wounds, which is explained by the C.O.D.I.T.-principle. There's a lot of documentation to be found about that principle, but this one explains it in simple words:  http://en.wikipedia.org/wiki/Compartmentalization_of_decay_in_trees

We do cut off small branches as some diseases can be identified by discolorations within the tree.

I think you might be able to learn more if you contact a European Tree Worker. More and more people are learning what magnificent creatures trees actually are, what they mean to our environment and how to take care of them, but we're still a long way from understanding Mother Nature.

Kind regards, Flowerchild 


 (BTW, sorry for the long post)




What is the name of this shrub?

Posted: 04/08/2014 at 19:02

It's Ligustrum japonicum 'Texanum' or a cultivar.

What is the name of this shrub?

Posted: 04/08/2014 at 12:09

As this picture is taken from a rather close position, could it perhaps be oval-leaved privet (Ligustrum ovalifolium)?

problems with pear tree

Posted: 04/08/2014 at 10:40

Goodmorning  john boy3,

Your Pear tree is suffering from Brown Spot Disease. Scientific name: Stemphylium vesicarium.

Root damage is indeed possible, but the wound in the first picture looks like it's an old one which the tree has already healed itself. If you open that wound again, you'll also cut through the barriers inside  which may lead to another infection or it may start rotting away. My advice would be to leave that wound intact.

I think you should take your picture to a fruit nursery and ask their advice, maybe even ask if they have the time to come and have a look at it. Old trees are very valuable for birds and other wildlife and most of the time they make a excellent feature in a garden.


Albizia julibrissin

Posted: 04/08/2014 at 10:00

Hehehe TM, yep I geddit!   It remains a 'fascinating' subject, doesn't it ((geddit too? ) Is this when you write "no pun intended"???))

You're  welcome, I loved to help you TM. I'm curious though, whatever dìd happen at the RHS? Sorry if I'm too nosey, just say so if you think I am...

Albizia julibrissin

Posted: 30/07/2014 at 19:19

Sorry TM, I thought I did send you one back, but apparently I didn't press the send button  Must be an early senior moment.

But be assured that it doesn't harm the tree at all, only if you think it's ugly, or if you want normal looking leaves, then you'll need to remove everything abnormal to a normal looking shoot. If it's a whole branch with leaves looking like that, take it out completely. And Summer is a good time to do it. Wounds heal quicker now.

Hope that's what you wanted to know. And I will report back if I receive a reaction on the other forums.


Albizia julibrissin

Posted: 30/07/2014 at 12:01

TM, didn't you get my mail?

what shrub is purple flowered beauty?

Posted: 29/07/2014 at 12:03

Pete8 is right, that's Thalictrum delavayi.

Anyone grown Linaria maroccana (moroccan toadflax)

Posted: 22/07/2014 at 12:32

Sorry cairnsie, no photos I'm afraid. I don't even have a camera

Anyone grown Linaria maroccana (moroccan toadflax)

Posted: 18/07/2014 at 09:35

Oh, they're lovely, cairnsie. And they're absolutely not invasive, they are annuals. I've sown them in between thrifts of Stipa tenuifolia, among other meadow flower-like plants, and it looked stunning. I used a seedmix called Linaria maroccana 'Northern Lights Mixed'.


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