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HD6GTOM 
Orange Level
Joined: 30 Nov 2009
Location: MADISON CO IA
Points: 6627
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 Topic: Any plum tree specialists on here
Posted: 30 Jul 2021 at 8:19pm |
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I have 2 plum trees about 70' apart. There is a mature Walnut tree between them. Every year they set on dozens of little green plums. Things will look good for a couple of weeks and them almost over night all the green plums will be on the ground. No wind or heavy rain to knock them off the trees. I do not remember the type of plums. They don't look wormy and I don't see any leaf damage on the trees. This has happened for the past 5 or 6 years. If I can't figure out what is wrong they are gonna get cut down and burnt for firewood. There are 40+ bee hives sitting beside them so pollination should be good. The plums set on well after the last frost.
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john(MI)
Orange Level
Joined: 12 Sep 2009
Location: SE MI
Points: 9262
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Posted: 31 Jul 2021 at 11:45am |
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I ain't a plum tree specialist, but I do know that anything planted under a walnut tree will have problems. Maybe you're thinking about removing the wrong tree?
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D14, D17, 5020, 612H, CASE 446
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orangeman
Orange Level
Joined: 12 Sep 2009
Points: 1852
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Posted: 01 Aug 2021 at 8:12am |
HD6GTom: If these are Black Walnuts Trees - look up the definition of Juglone.
HTH's...
Orangeman
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DMiller
Orange Level Access
Joined: 14 Sep 2009
Location: Hermann, Mo
Points: 33904
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Posted: 01 Aug 2021 at 10:31am |
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Our recent planted Peach did the same thing this year, peaches were growing and looked good, next day ALL were down. Local greenhouse operator asked of Walnut close or if was using a material as 2-4-D or Roundup near to it, said sometimes just a late frost can cause such.
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fixer1958
Orange Level
Joined: 13 Feb 2010
Location: kansas
Points: 2434
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Posted: 01 Aug 2021 at 6:52pm |
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Probably the Walnut. I can't grow anything worth saving near them.
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HD6GTOM
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Joined: 30 Nov 2009
Location: MADISON CO IA
Points: 6627
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Posted: 02 Aug 2021 at 12:51am |
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OK thanks guys looks like I'll have this thing cut down. Its about 24" across outta be worth a little something.
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soggybottomboy
Silver Level Access
Joined: 20 Feb 2018
Location: Iowa
Points: 218
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Posted: 04 Aug 2021 at 9:17am |
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We have had the same thing happen to our cherry tree. We only have one, but it is supposed to be self fruiting. It is a profusion of blossoms, but when the fruit gets the size of a pencil eraser it all falls off. Planted about 6 years ago. It is planted about 6 feet beside our driveway and 2 winters ago our son was driving thru a big snowdrift and his truck slid off the driveway and he ran over the tree. Broke half of it off. I thought maybe the reason it won't bear is because it has been traumatized, but maybe not. I would talk to the Iowa State Extention Service before cutting anything down.
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