Bonsai Study Group Forum

General Category => General Bonsai Discussion => Topic started by: Bilt85 on August 21, 2017, 02:22 PM

Title: Juniper sap issue
Post by: Bilt85 on August 21, 2017, 02:22 PM
Help please, I have a juniper skyrocket bonsai. It was re potted and shaped in April from a nursery plant to a bonsai. I have just checked it and noticed it has a lot of sap on the leaves, there doesn't seem to be any disease so I'm not sure why this would be. It hasn't been cut or had any work on it since April. Can you help?

 Any advice on pruning would be great also, I have been doing some research but a lot conflict with each other about pinching or cutting. I am wanting the pads to start filling out but I'm not sure on the process of back budding and ramification.

Thanks you for the help


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Title: Re: Juniper sap issue
Post by: Leo in NE Illinois on September 10, 2017, 05:32 PM
can't really tell from the photo. Color of your leaves does not seem right, a bit off.

First ''do no harm'', don't go crazy trying all kinds of stuff. Just continue to give consistent care. Many trees resolve their own issues with good consistent care.

You might hit the foliage with an insecticidal soap solution. Safer's and other similar brands, spray every 3 or 4 days for a couple weeks. Insecticidal soaps work partly by mechanically washing the bugs off the leaves. and second by the soap affecting the insect's cuticle of its exoskeleton, causing them to dehydrate. Generally Insecticidal soaps are harmless to most species of plants, except ferns, do not use on ferns.

Other than that I would work at getting a good image of the actual pest, before recommending anything stronger.
Title: Re: Juniper sap issue
Post by: Leo in NE Illinois on September 10, 2017, 05:40 PM
In addition, I would recommend no pruning. The color of your foliage is off, you need to nurse the tree back to health, before pruning anything. Pruning stresses a tree, right now your tree needs its strength to recover from what ever it is struggling with.

If when styling it was pruned and repotted, it may need until next year to recover from all that work. Once you see new growth on most of the branches, you will then know it has recovered, whether that take a month or a year the tree will tell you with the color change and new growth .
Title: Re: Juniper sap issue
Post by: geoffhobson on September 11, 2017, 07:05 AM
Sap on leaves sounds like insects, have you checked under as well as on top? are there ants about? A sure sign of insects.
It does look poor and in need of serious pruning and styling.
Title: Re: Juniper sap issue
Post by: Jay on September 15, 2017, 06:50 AM
Please listen to Leo. DO NOT do any pruning or even styling till you return this tree to health.
Bonsai is not a quick endever... Patience is your most important tool.
Good luck
Title: Re: Juniper sap issue
Post by: Bilt85 on September 21, 2017, 04:55 PM
Thanks for the replies.

I put some insect treatment which seems to have worked as the leaves like there is a lot less sap on them.

 I haven't done any pruning and I won't until next year as it was heavily cut back in April as it was a nursery plant to begin with. The leaf colour was dark to begin with but it's turned lighter an more blue with time. It appears to be in good health, plus the cuttings I took off it have taken.

 Any advice on pruning in April? As Geoff says it needs styling, some has been done when it was cut back but it needs a lot more work yet.

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Title: Re: Juniper sap issue
Post by: augustine on October 02, 2017, 09:15 AM
My advice on pruning in April is don't. Your tree is weak and does not have much foliage. A juniper's strength depends on foliage.

It should have rest and fert in growing season of 2018, let it grow. Revisit in Spring of 2019.
Title: Re: Juniper sap issue
Post by: geoffhobson on October 03, 2017, 11:30 AM
What I would do is to plant it in the ground and leave it for at least 4 years. Heavily frtilise with high nitrogen fertiliser. It will never produce a thick trunk in a pot, and will also not grow much.
I would be using seaweed extract through the winter if it remains in the pot.
Left alone it will always be a youg looking plant in a pot.
Title: Re: Juniper sap issue
Post by: M. Frary on October 14, 2017, 02:26 PM
  I'd get it into a  larger container in the spring if it's alive.
As soon as I saw it was healthy I would drop the hammer on it.
4 years will let it get away from you.
If alive in the spring wire it.
Title: Re: Juniper sap issue
Post by: Bilt85 on October 26, 2017, 01:16 PM
I have attached an end of summer photo. You can see it looks much healthier and should survive winter. I agree it would need some work next year but it also doesn’t want too much to weaken the tree.

 I may remove some branches in years to come as I think currently there are too many. I would plant it in the ground for some time but my garden doesn’t allow me to do this but a larger pot is possible. Only issue is you end up with a bonsai sat in a large ugly pot for many years.


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