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Manuel
Vancouver Wa
4 Posts
(Offline)
1
February 28, 2020 - 10:59 am

I have this plum tree for 3 years now, it got sick the year after I planted it, deformed leaves curled, some turned brown, all the flowers just dropped. At first I thought it was due to a freeze but same thing happened the following years.Frown

After some google digging I found out it the tree got sick, and the solution was a copper fungicide so this year I sprayed it with something I bought at Lowes "Bonide 16-fl oz Concentrate Natural Copper".

Now all I can do is wait and see if it works. Confused

Does anyone knows a better way to cure this curl leaf sickness?

Thanks everyone.

 

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Rooney
Vancouver SW Washington
684 Posts
(Offline)
2
February 28, 2020 - 7:07 pm

Has it provided any growth for you in those years or is it just stalling?

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Manuel
Vancouver Wa
4 Posts
(Offline)
3
March 1, 2020 - 2:06 am

It grew a few feet, lots of small branches all over but the leaves just curled and stop growing and all flowers die.

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Rooney
Vancouver SW Washington
684 Posts
(Offline)
4
March 1, 2020 - 9:35 am

Manuel said
It grew a few feet, lots of small branches all over but the leaves just curled and stop growing and all flowers die.  

It's not a soil borne issue from the ground then. 

What is seen more and more in the PNW in the last 15 years (noted this on plums myself) are what is listed under "fungal" in certain branches of cherry wood as per the link.

https://pnwhandbooks.org/node/2483/print

I had this on a sweet cherry branch 12 years ago and had noted there were streaks of brown in the old wood that extended out to new wood which is a positive indication of some kind of rot which are closely along the lines of this new fungal listed above. (actaully I'm glad I found they found it's fungal because I had never known if it was rot or fungal until today)

5-10 years ago I have seen plum trees have this in some of my walks. Some on branches, some on whole trees, all of which were on parks or school grounds. I sent in samples of the whole infected plum tree for virus detection at WSU and it was clean and not the cause of the curl. 

I see things in a way that there are two kinds of things. You have trees that have no active immune systems (ie. ginko biloba) and then you have about 90% of the other tree forms that do and for these (90%) that are better adapted you can also find variances. Which you can see if brown steaking conditions appear all the way down to the rootstock and disappear at the lower part of the graft then I would say to follow the exampled recommendation in the link and replace the bad cultivar. 

What I mean well about is possibly save your rootstock in place if you can and graft another yourself from better selections we carry at scion exchanges.

continued...

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Rooney
Vancouver SW Washington
684 Posts
(Offline)
5
March 1, 2020 - 9:49 am

.....

Manuel said
After some google digging I found out it the tree got sick, and the solution was a copper fungicide so this year I sprayed it with something I bought at Lowes "Bonide 16-fl oz Concentrate Natural Copper".

Unfortunately spraying for a progressively late fungal condition of more than a half a year then at this point any kinds of sprays out there can't be of any use.

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Manuel
Vancouver Wa
4 Posts
(Offline)
6
March 2, 2020 - 12:24 pm

Thank for the info Rooney. I will trim most of the branches and see what and how it grows this year. If I see the same issues I'm gonna have to cut it down and find something else. Frown

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Rooney
Vancouver SW Washington
684 Posts
(Offline)
7
March 2, 2020 - 2:24 pm

Finding "something else" sometimes means buying true and proven cultivars with known reputations in this area. As any one of us here that have lodged 50+ posts or more will tell you from experience that the problem is finding which ones that will match your health expectations.

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Manuel
Vancouver Wa
4 Posts
(Offline)
8
March 2, 2020 - 4:39 pm

Exactly, I thought the nursery was selling me a healthy tree that was good for this NW weather. I'll better do the research myself and then go find another one, but again I'm still at the mercy of the nursery hoping it is what it supposed to be.

Thanks.

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