Pages: [1]
Author Topic: Shimpaku yellowing  (Read 1809 times)
richjay
Poster
*
Posts: 3

« on: June 16, 2013, 06:27 PM »

Hello everyone.
This is a wonderful forum.  My name is Rich and this is my first post. I would love any advice on a shimpaku issue I have.
I've had this tree for about a month and the it seems to be yellowing in certain areas.  The soil seems to be ok ( not too wet or dry).
I have it if a fairly sunny area and water about once a day.  I seems to be getting worse every day.
The only thing I've done is fertilize it a few weeks ago with a handfull of Green Dream and did pruning of some new growth.

I attached a photo of the yellowing that is accuring.

Thank you!
Logged

John Kirby
Hero Forum Member
*****
Posts: 2073
USDA Hardiness: 6



« Reply #1 on: June 16, 2013, 09:23 PM »

Where are you? Generally speaking.

Remove the yellow foliage. Next thing is to go in and remove all of the old foliage in side, it win't have green growing tips or will be pointed down (dangling). Once it is cleaned and opened up it will help. Next, only prune to lignified wood, brown not green. Finally check with locals to see about fungicide requirements, or tell us where you are, and wstch outfor pedts like mites and bugs that feed on shoot tips.
Logged

richjay
Poster
*
Posts: 3

« Reply #2 on: June 16, 2013, 09:53 PM »

Hi John,

Thanks for the info.  I'm located in lower Westchester NY.
Sorry I'm fairly new to Bonsai and I didn't understand what you mean by "only prune to lignified wood, brown not green"

I'm going to pinch off all the yellow and old follage tomorrow. 
Logged

augustine
Full Forum Member
***
Posts: 155
USDA Hardiness: 7A

« Reply #3 on: June 17, 2013, 09:36 AM »

Check for spider mites. I use neem oil according to directions with a touch of dish soap and a capful of alcohol in the spray bottle.
Logged

bwaynef
*****
Posts: 1401
USDA Hardiness: 8a



« Reply #4 on: June 18, 2013, 07:33 AM »

Sorry I'm fairly new to Bonsai and I didn't understand what you mean by "only prune to lignified wood, brown not green"

Lignified wood is brown.  If its still green, its not lignified.  Prune to brown wood.
Logged

Chrisl
Hero Forum Member
*****
Posts: 863
USDA Hardiness: USDA Hardiness 5b

« Reply #5 on: June 18, 2013, 10:10 AM »

Could be scale too, my small Itoigawa is just getting over a bad infestation.  Same yellowing.
Logged

richjay
Poster
*
Posts: 3

« Reply #6 on: July 10, 2013, 09:14 PM »

Thank you for all of the great advice.  Grin
Logged

Pages: [1]
Print
 
Jump to: