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younger leaves start hanging, some new branches fall off

 
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Sven_limoen
Citruholic
Citruholic


Joined: 08 Apr 2011
Posts: 305
Location: Vlaams-Brabant, Belgium, Zone 8

Posted: Mon 15 Oct, 2012 10:56 am

Hey all,

this week I started seeing things on my calamondin that doesn't really scare me but it gives me some questions.
When summer was comming to an end the plant started making new branches and leaves. This week I started seeing these new (small) leaves starting to hang down. They still feel good and look good, they just start hanging. It looks like winddamage which has occured to during the summer but now the plants are inside for over a month already in front of a window that is opened for about a cm to let some fresh air in but almost no wind.

Another thing I've been seeing on this plant is that some really young branches of about 2 cm died off at the branches growing stem. That point turned black and maybe 2 or 3 minibranches fell off.

I wonder what's happening.

Some pictures:








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growing (at least trying): C. sinensis, C. latifolia, C. limon, C. mitis
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Sylvain
Site Admin
Site Admin


Joined: 16 Nov 2007
Posts: 790
Location: Bergerac, France.

Posted: Mon 15 Oct, 2012 11:54 am

Bad sign. The sap doesn't reach the leaves.
You must inspect the roots, collar and stem for necrosis or gommose.
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Millet
Citruholic
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Joined: 13 Nov 2005
Posts: 6657
Location: Colorado

Posted: Mon 15 Oct, 2012 12:00 pm

Young leaves transpire water at a much higher/faster rate than do mature leaves, therefore they require a greater amount of water to retain rigidity . The wilting of new growth is quite common. Increase the water supply for the next month or so until the leaves mature. - Millet 90
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Sylvain
Site Admin
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Joined: 16 Nov 2007
Posts: 790
Location: Bergerac, France.

Posted: Mon 15 Oct, 2012 3:20 pm

You better look to the roots first because if it is a beginning of phytophthora attack more watering will make it worse.
It takes few seconds to pull the roots out of the pot and you'll see.
If it is too dry, apply more water, if it is wet look for rotten roots.
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Laaz
Site Owner
Site Owner


Joined: 12 Nov 2005
Posts: 5640
Location: Dorchester County, South Carolina

Posted: Mon 15 Oct, 2012 3:39 pm

Are the new shoots turning brown?

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igor.fogarasi
Moderator
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Joined: 11 Apr 2011
Posts: 553
Location: Novi Sad, Serbia

Posted: Mon 15 Oct, 2012 4:57 pm

I'll have to agree with Sylvain. If new shoots turn brown and die, it's definitely an early stage of Phytophthora.
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Millet
Citruholic
Citruholic


Joined: 13 Nov 2005
Posts: 6657
Location: Colorado

Posted: Mon 15 Oct, 2012 5:25 pm

I still believe it is just the simple fact of water vs transpiration. which is a common occurrence. of young trees.. However, as written above it is a quite easy and a prudent procedure to check the tree's root system. However, do it correctly so that you do not damage the tree's young root system. Millet 90.
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Sven_limoen
Citruholic
Citruholic


Joined: 08 Apr 2011
Posts: 305
Location: Vlaams-Brabant, Belgium, Zone 8

Posted: Sat 20 Oct, 2012 5:29 pm

Sorry for the late reply..had some very busy day's lately. Watering seemed to solve the problem since the branches look happy again. Smile

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growing (at least trying): C. sinensis, C. latifolia, C. limon, C. mitis
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Millet
Citruholic
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Joined: 13 Nov 2005
Posts: 6657
Location: Colorado

Posted: Sat 20 Oct, 2012 8:08 pm

Glad your tree's problem was simply just not supplying enough water. In about one month time the young leaves will be hardened off enough so that you should not see this kind of problem again. The best. - Millet 85
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Sanguinello
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Posted: Mon 22 Oct, 2012 9:16 pm

LOL ...

soil looked like dust, so I wonder why you did not water them long time ...
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Sven_limoen
Citruholic
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Joined: 08 Apr 2011
Posts: 305
Location: Vlaams-Brabant, Belgium, Zone 8

Posted: Tue 23 Oct, 2012 10:07 am

Sanguinello wrote:
LOL ...

soil looked like dust, so I wonder why you did not water them long time ...


I tend to wait until I see hanging leaves during the winter just to be safe in case I'd overwater them.

I must say I did not know younger leaves act that way when running low on water. This is something I will remember!

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growing (at least trying): C. sinensis, C. latifolia, C. limon, C. mitis
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Sanguinello
Gest





Posted: Tue 23 Oct, 2012 12:46 pm

Well ...
keep them rather dry and let them dry out completele are 2 different things.

I think to water them normally ( to water only when the soil feels dry) and fertilize only 1/3 is the best way ...
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Millet
Citruholic
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Joined: 13 Nov 2005
Posts: 6657
Location: Colorado

Posted: Tue 23 Oct, 2012 5:22 pm

If the medium in which a container tree is growing in has good drainage, and good root zone aeration, it would be quite difficult to kill, or even damage the tree from over watering. Under watering a tree is a much bigger problem, because it directly puts undue stress on the tree, thereby opening the tree up to additional problems, plus it greatly slows the tree's growth. - Millet 82
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danero2004
Citruholic
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Joined: 19 Jun 2009
Posts: 522
Location: Romania Zone 6a

Posted: Wed 24 Oct, 2012 7:11 pm

Sven_limoen wrote:
Sanguinello wrote:
LOL ...

soil looked like dust, so I wonder why you did not water them long time ...


I tend to wait until I see hanging leaves during the winter just to be safe in case I'd overwater them.

I must say I did not know younger leaves act that way when running low on water. This is something I will remember!


I water my citruses in winter in the same way as Sven does and never had any problem with "too-much-water"

Also this does seems to promote flowering as I've read about leaving the trees on dryer side.
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