# Yellowing needles on a brach on JWP

**URL:** <https://forum.bonsaimirai.com/t/yellowing-needles-on-a-brach-on-jwp/1849>\
**Category:** Horticulture\
**Created:** [October 7, 2018, 10:38am UTC](https://forum.bonsaimirai.com/t/yellowing-needles-on-a-brach-on-jwp/1849 "2018-10-07T10:38:28Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![Jurgen](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.bonsaimirai.com/jurgen/32/656_2.png) [@Jurgen](https://forum.bonsaimirai.com/u/Jurgen)\
**Post date:** [October 7, 2018, 10:38am UTC](https://forum.bonsaimirai.com/t/yellowing-needles-on-a-brach-on-jwp/1849/1 "2018-10-07T10:38:28Z")

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Hey guys, my japanese white pine has been healthy in the last years but approximately 3 weeks ago started to develop yellow needles on one single branch…!

 ![image](https://canada1.discourse-cdn.com/flex029/uploads/bonsaimirai/original/2X/d/d89d0b006cfd7127416fe056381cf7a562acd541.jpeg) ![image](https://canada1.discourse-cdn.com/flex029/uploads/bonsaimirai/original/2X/e/e13d9986f454d18c4a10ddbb28e87f5e8ec0b355.jpeg)  
Do you have any idea and advice Wehre this could come from and how I could take care of it?!?!

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**Author:** ![MtBakerBonsai](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.bonsaimirai.com/mtbakerbonsai/32/23909_2.png) [@MtBakerBonsai](https://forum.bonsaimirai.com/u/MtBakerBonsai)\
**Post date:** [October 7, 2018, 3:10pm UTC](https://forum.bonsaimirai.com/t/yellowing-needles-on-a-brach-on-jwp/1849/2 "2018-10-07T15:10:20Z")

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Overwatering, underwatering, fungus, insects, when was it wired?  
From the picture it looks like there is some more needles turning yellow at the base of the bundle.  
Also let me correct you, This tree has 2 needles per bundle, where a Japanese White Pine has 5 needles per bundle. Looks like a Japanese Black Pine.  
Thoughts anyone 😀🌲

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**Author:** ![AndyK](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.bonsaimirai.com/andyk/32/2330_2.png) [@AndyK](https://forum.bonsaimirai.com/u/AndyK)\
**Post date:** [October 7, 2018, 5:09pm UTC](https://forum.bonsaimirai.com/t/yellowing-needles-on-a-brach-on-jwp/1849/3 "2018-10-07T17:09:14Z")

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Most pines will drop old needles in the autumn, but this looks like a dead branch. Up to you to look for clues. Not JWP

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**Author:** ![CoffeeCherry](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.bonsaimirai.com/coffeecherry/32/467_2.png) [@CoffeeCherry](https://forum.bonsaimirai.com/u/CoffeeCherry)\
**Post date:** [October 8, 2018, 11:24am UTC](https://forum.bonsaimirai.com/t/yellowing-needles-on-a-brach-on-jwp/1849/4 "2018-10-08T11:24:30Z")

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All above plus think when was the last time you re-potted it. It might be part of the root ball lacking oxygen…? Seems like anything underground to me.

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**Author:** ![JoshM](https://avatars.discourse-cdn.com/v4/letter/j/4af34b/32.png) [@JoshM](https://forum.bonsaimirai.com/u/JoshM)\
**Post date:** [October 9, 2018, 4:34pm UTC](https://forum.bonsaimirai.com/t/yellowing-needles-on-a-brach-on-jwp/1849/5 "2018-10-09T16:34:40Z")

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How’s your percolation? Probably a root issue since it’s not all the needles. The Sheen (the part directly under the trunk) isn’t getting enough water and oxygen. If you don’t want to repott it now, scrape the surface off, rinse off the loose dirt while holding it at an angle so it washes off. Then put a tape barrier a couple inches high all the way around and add some substrate to the top. Within a few weeks you should see a difference.

Any time I have root problem now, that’s the first step.

Ryan has a good video on this with precise directions. Can’t loose with this method.

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**Author:** ![MrJesseStrong](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.bonsaimirai.com/mrjessestrong/32/1254_2.png) [@MrJesseStrong](https://forum.bonsaimirai.com/u/MrJesseStrong)\
**Post date:** [October 10, 2018, 11:03am UTC](https://forum.bonsaimirai.com/t/yellowing-needles-on-a-brach-on-jwp/1849/6 "2018-10-10T11:03:36Z")

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Looks like a dead branch to me. Could be a dozen reasons for that. I think your biggest problem is that’s not a Japanese White Pine. If you’ve been caring for that tree as if it were, I’d start there with why you could be losing branches.

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**Author:** ![Jurgen](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.bonsaimirai.com/jurgen/32/656_2.png) [@Jurgen](https://forum.bonsaimirai.com/u/Jurgen)\
**Post date:** [October 14, 2018, 10:23am UTC](https://forum.bonsaimirai.com/t/yellowing-needles-on-a-brach-on-jwp/1849/7 "2018-10-14T10:23:06Z")

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Thx buddy! Great and very constructive advice 👏🏻

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**Author:** ![Jurgen](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.bonsaimirai.com/jurgen/32/656_2.png) [@Jurgen](https://forum.bonsaimirai.com/u/Jurgen)\
**Post date:** [October 15, 2018, 5:44am UTC](https://forum.bonsaimirai.com/t/yellowing-needles-on-a-brach-on-jwp/1849/8 "2018-10-15T05:44:31Z")

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Sorry to all: JBP !!!

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**Author:** ![KurtP](https://yyz1.discourse-cdn.com/flex029/user_avatar/forum.bonsaimirai.com/kurtp/32/16188_2.png) [@KurtP](https://forum.bonsaimirai.com/u/KurtP)\
**Post date:** [April 7, 2025, 3:38pm UTC](https://forum.bonsaimirai.com/t/yellowing-needles-on-a-brach-on-jwp/1849/9 "2025-04-07T15:38:46Z")

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@Jurgen , how is this tree doing?  
K
