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Question for GLP arborists, gardeners about Cedar Apple Rust

 
alien
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User ID: 19084489
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07/04/2012 02:13 AM
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Question for GLP arborists, gardeners about Cedar Apple Rust
I know there are some avid gardeners on GLP so I hope someone may have some advice.

We have a couple of apple trees, they're a couple of years old. They developed yellow spots all over the leaves, one far worse than the other. I did a little bit of research and believe it to be a problem of Cedar Apple Rust.

There is a bit of info out there about how to prevent it by spraying antifungals but it seems like a lot of work. Once a week they need to be sprayed? Doesn't seem like this is too healthy of an option.

But anyway, this isn't a question about prevention since my trees are already infected. My question is, is there any way to cure it? Or is it a lost cause?



(Note - It's late so I'm going to bed now. I will respond back to this thread sometime tomorrow. )

*
R. Mutt
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07/04/2012 02:16 AM
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Re: Question for GLP arborists, gardeners about Cedar Apple Rust
Try some number 200 sandpaper to remove the rust and then cover it with Rust-o-leum outdoor spray paint of your favorite color.
Anonymous Coward
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07/04/2012 02:17 AM
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Re: Question for GLP arborists, gardeners about Cedar Apple Rust
Try some number 200 sandpaper to remove the rust and then cover it with Rust-o-leum outdoor spray paint of your favorite color.
 Quoting: Anonymous Coward 19098578


laugh
alien (OP)

User ID: 19084489
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07/04/2012 02:23 AM
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Re: Question for GLP arborists, gardeners about Cedar Apple Rust
lol Thanks!
R. Mutt
Hugh G. Rechtion

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07/04/2012 02:26 AM
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Re: Question for GLP arborists, gardeners about Cedar Apple Rust
Safest way to rid fungus is w/ liquid copper spray for Trees... Bam!!
alien (OP)

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07/04/2012 01:16 PM
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Re: Question for GLP arborists, gardeners about Cedar Apple Rust
Safest way to rid fungus is w/ liquid copper spray for Trees... Bam!!
 Quoting: Hugh G. Rechtion


Thanks for the tip. I looked it up, seems to be the answer.

Seems I might have to wait till next spring though.
R. Mutt
Hugh G. Rechtion

User ID: 16473626
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07/05/2012 04:22 AM
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Re: Question for GLP arborists, gardeners about Cedar Apple Rust
Safest way to rid fungus is w/ liquid copper spray for Trees... Bam!!
 Quoting: Hugh G. Rechtion


Thanks for the tip. I looked it up, seems to be the answer.

Seems I might have to wait till next spring though.
 Quoting: alien


I have also found non-toxic Insecticidal soap works
when trees are in foliage. Fungus has chitin too! Save them trees.
Anonymous Coward
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07/05/2012 04:23 AM
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Re: Question for GLP arborists, gardeners about Cedar Apple Rust
The only thing that cures Cedar Apple Rust is A1 steak sauce
Hugh G. Rechtion

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07/05/2012 04:33 AM
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Re: Question for GLP arborists, gardeners about Cedar Apple Rust
Safest way to rid fungus is w/ liquid copper spray for Trees... Bam!!
 Quoting: Hugh G. Rechtion


Thanks for the tip. I looked it up, seems to be the answer.

Seems I might have to wait till next spring though.
 Quoting: alien


I have also found non-toxic Insecticidal soap works
when trees are in foliage. Fungus has chitin too! Save them trees.
 Quoting: Hugh G. Rechtion
Oh, one more thing, once you get rid of the fungus never ever let leaves or tree debris overwinter under or near your trees. Otherwise the cycle will continue. Peace
Anonymous Coward
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07/05/2012 04:43 AM
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Re: Question for GLP arborists, gardeners about Cedar Apple Rust
Not sure about Cedar Apple Rust but when my tree got some spots on it I used Tea Tree Oil and it healed right up. I have also heard you can use Neem Oil. If I were you I'd probably use Tea Tree Oil first as I think it is stronger, you could mix it with lots of water to spray it on. I rubbed the Tea Tree Oil into the spots on the leaves with a Q-tip but I only have a small apple tree. Not sure what spraying the whole tree with it would do. It's very strong so I would water it down a lot, but not so much that it doesn't have an effect. Then I'd probably apply some Neem Oil mixed with water to keep it clear and healthy. Those are both natural oils rather than chemicals. Good luck to you! hf
Esoteric Morgan
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07/05/2012 05:10 AM

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Re: Question for GLP arborists, gardeners about Cedar Apple Rust
Considering that those trees are very young, I would venture to say that the basis of their diseased state is probably due to environmental stresses.

Just as the immune system of a healthy human helps people aviod sickness, so is it with trees.

It has been my experience that more plants are 'loved to death' than you'd think. Overwatering is perhaps the number one factor leading to plant failure. The over-application of chemicals, such as fertilizers, is another big factor.

If you use a weed and feed on your lawn, it should never be applied near or under the crown of the tree, as the 'weed' portion is an herbicide designed to kill.

When I receive an inquiry regarding problems such as what you are experiencing, besides those things I have just mentioned, the first thing I ask is how the tree was planted. Improper soil preparation, digging a hole too small, and, neglecting to remove or untangle any girdled roots before planting can doom a plant from the start. An overgrown and crowded root system is a common problem, if the roots are not properly spread out.

As the tree grows and takes on girth, the effect of girdling roots is much like a tight rubber-band on a finger, cutting off circulation...yet, as you have two trees equally diseased, I would lean more towards my original examples.

Now, you mentioned spraying. In fact, you used the term 'once a week.' While it is true that some problems require agressive treatment, you must be fully aware of the prescribed chemical schedules and amounts to use for you area. This can be found by contacting you local State Co-operative Extension agent, which is run under the auspices of your State's agricultural college, in concert with the Department of Agriculture.

Yet, as apple trees are food producing trees, you have to be careful not to spray them during fruit development, or, your apples will be toxic. But, I suspect you'l have little chance of fruit formation with leaves that are unable to produce food for the entire tree in the first place.

Young trees should have some good degree of natural immunity. As I already mentioned, that yours are failing so soon seems to indicate something terribly wrong with their environment, perhaps the condition of its soil structure, pH, or, moisture level.

You may have to start from scratch with new trees, but, before you make another investment, it's imperative to have your soil analysed so you don't replant in destroyed soil.

Sorry I can't discuss Cedar Apple Rust directly. We got out of the pest and disease aspect of aboriculture some years ago, due to the many hazards and liability issues of chemical use.

Good luck. If you are into landscaping and gardening, you might consider studying up on care techniques.

And, don't make the common mistake of loving your plants to death.

cool2

Last Edited by Esoteric Morgan on 07/05/2012 05:17 AM
alien (OP)

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07/10/2012 10:39 PM
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Re: Question for GLP arborists, gardeners about Cedar Apple Rust
Thanks for the tips everyone, it is all very helpful! Seems I've got a bit of experimentation to do.

What a pain though, never realized how delicate apple trees can be. I just figured you could just stick the tree in the ground, let it grow, and then pick the apples.

flower
R. Mutt

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