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#1
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[IBC] Sudden Mapple Death
Hi everyone. I had a strange and depressing thing
happen this week. I have had a large bloodgood japanese maple for about 7 years now. The tree was about 10 years old or older when i bought it. And just yesterday the strangest thing happened. Each year the green spring growth emerges with small finely toothed leaves. Then they slowly fade to red and the leaves get a bit larger as summer comes. This spring however the leaves came in just as always but stayed green. They have been green ever since never getting there red summer color. It is in a large pot about 4 feet wide by about 2-3 feet deep. The tree itself is about 2-3 feet tall with a 4 to 5 foot spread, it had a beautiful natural weeping hapit. One branch on the trees tip died about a week and a half ago. Then about 5 days ago more of the branch died. So just to be safe i cut the branch off well above the dying back section leaving space for any die back which sometimes occurs. It did not turn black and did not look like vertimiculum wilt, which i have run into before. Then yesterday morning i went out to water it as always and shockingly the entire tree was wilted. It was not a particularly hot day and i had watered it that morning. The soil is not the best soil mix but is nice and open. It holds water for about 2 to 3 days usually during the summer. The tree does have a thin layer of pine bark mulch on top of the soil. I have fertilized it as i always do with bio gold pellets and a dose of fish seeweed every 2 weeks. Then i went out this morning and to my horror all the leaves were dried up and mostly wilted. It is in an area of partial shade only. There were no changes in envirormental conditions. I am shocked that the entire tree died in 2 days. The branches seem to already be drying up and there are NO healthy leaves on the tree now. I have absolutely no clue what happened to it......... Neither day was unordinarily hot or sunny for this time of year. Just to be safe the first day i noticed it was wilted i left a drip line on it for the day. It doesn't look like tip burn from the sun which i have seen in the past. I don't see any insect activity spider mites or otherwise. I do notice some fungus gnats but that is normal for some of my plants that reside in shade. I have 50 something other maples all growing strong with normal color changes. But this one has me confused........ I havne't pulled it from the pot to check for root rot but its unlikely as i repotted it not this past spring but the one before and the root system was very healthy. I used the same potting mixture on it last year that i have used all the years in the past. There are maples growing all around it in wonderful health so im very confused as to what happened here any ideas. One last thing the branch which had the first leaves wilt and die was one of the few branches wired this year. It was not cracked or broken or strangled though during wiring and was not an extreme bend at all. Thanks Ben __________________________________ Do you Yahoo!? SBC Yahoo! DSL - Now only $29.95 per month! http://sbc.yahoo.com ************************************************** ****************************** ++++Sponsored, in part, by Mike Page ++++ ************************************************** ****************************** -- The IBC HOME PAGE & FAQ: http://www.internetbonsaiclub.org/ -- +++++ Questions? Help? e-mail +++++ |
#2
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[IBC] Sudden Mapple Death
Hi everyone. I had a strange and depressing thing
happen this week. I have had a large bloodgood japanese maple for about 7 years now. The tree was about 10 years old or older when i bought it. And just yesterday the strangest thing happened. Each year the green spring growth emerges with small finely toothed leaves. Then they slowly fade to red and the leaves get a bit larger as summer comes. This spring however the leaves came in just as always but stayed green. They have been green ever since never getting there red summer color. It is in a large pot about 4 feet wide by about 2-3 feet deep. The tree itself is about 2-3 feet tall with a 4 to 5 foot spread, it had a beautiful natural weeping hapit. One branch on the trees tip died about a week and a half ago. Then about 5 days ago more of the branch died. So just to be safe i cut the branch off well above the dying back section leaving space for any die back which sometimes occurs. It did not turn black and did not look like vertimiculum wilt, which i have run into before. Chances are very good, however, that that is what it is. The symptoms -- a branch, then another, then the entire tree -- are telling. Take a look under the bark of the branch that died first. You are likely to find a dark stain -- maybe olive green -- on the wood underneath. There is NO cure for Verticillium wilt. Clean tools. If another tree appears to get it, fertilize HEAVILY with nitrogen. That sometimes helps. But not often. Destroy this tree; clean the pot VERY well, and even then don't use it again for a maple. I lost several Japanese maples to this a few years ago. As a result I no longer grow them. Jim Lewis - - Tallahassee, FL - The phrase 'sustainable growth' is an oxymoron. - Stephen Viederman ************************************************** ****************************** ++++Sponsored, in part, by Mike Page ++++ ************************************************** ****************************** -- The IBC HOME PAGE & FAQ: http://www.internetbonsaiclub.org/ -- +++++ Questions? Help? e-mail +++++ |
#3
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[IBC] Sudden Mapple Death
Just the same thing's happened to me, with a Bloodgood too, a month ago!!!!
And first branches which died were the wired ones, too!! Monika (Basque Country) ----- Original Message ----- From: Ben Griffin To: Sent: Wednesday, July 02, 2003 10:59 PM Subject: [IBC] Sudden Mapple Death Hi everyone. I had a strange and depressing thing happen this week. I have had a large bloodgood japanese maple for about 7 years now. ************************************************** ****************************** ++++Sponsored, in part, by Mike Page ++++ ************************************************** ****************************** -- The IBC HOME PAGE & FAQ: http://www.internetbonsaiclub.org/ -- +++++ Questions? Help? e-mail +++++ |
#4
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[IBC] Sudden Mapple Death
Just the same thing's happened to me, with a Bloodgood too, a
month ago!!!! And first branches which died were the wired ones, too!! Verticillium wilt enters via the roots, then travels up the trunk to the branches and leaves. It stands to reason that in an infected tree, one of the already stressed limbs would show it first. Wiring will not kill the tree; there is a remote -- read, REMOTE -- possibility that the branch was bent so severely that the bark broke and allowed some animicule ingress that way, but I can't think what it might be (NOT anthracnose, the other common maple ailment) and why (or how) it would end up killing the entire tree. Jim Lewis - - Tallahassee, FL - The phrase 'sustainable growth' is an oxymoron. - Stephen Viederman ************************************************** ****************************** ++++Sponsored, in part, by Mike Page ++++ ************************************************** ****************************** -- The IBC HOME PAGE & FAQ: http://www.internetbonsaiclub.org/ -- +++++ Questions? Help? e-mail +++++ |
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