Whats wrong with this Maple?

[The Warm Canuck]

My maples have been in full sun and in the wind so many of them have regular leaf scorch. I've moved them into partial shade until the summer cools off. However, this one maple has a different look then the other.

Is this just a watering issue and leaf scorched or is it a fungicide problem?

 

[The Warm Canuck]

bump

 

[Bonsai Nut]

I didn't comment before because I don't know what it is. It isn't fungus or insects. It almost looks like salt damage(?) Are you using chemical fertilizer?

 

[Lutonian]

could be a Pseudomonas are there any dark spots forming on the twigs and branches

Read This If You Grow Japanese Maple

This post is about a common bacterial disease called Pseudomonas syringae, which frequently affects Japanese maples yet is relatively easy to control. It is often misidentified as Verticillium wilt…

crataegus.com

here is a good link containing pics of the issue and ways to reduce/solve this problem

 

[penumbra]

could be a Pseudomonas are there any dark spots forming on the twigs and branches

Read This If You Grow Japanese Maple

This post is about a common bacterial disease called Pseudomonas syringae, which frequently affects Japanese maples yet is relatively easy to control. It is often misidentified as Verticillium wilt…

crataegus.com

here is a good link containing pics of the issue and ways to reduce/solve this problem

I have dealt with this and it doesn't look like Pseudomonas damage. It looks environmental or even mechanical. Quite possibly over fertilizing or overs pray of some other product. It could well be one of the many types of leaf spot.

 

[Bonsai Nut]

I have dealt with this and it doesn't look like Pseudomonas damage. It looks environmental or even mechanical.

I also wondered about mechanical - wind related, or if the tree got blown off the bench, or if another tree or branches were striking the smaller tree in the wind.

 

[Brian Van Fleet]

Is that this maple?

Thread 'Critique my JM repotting method'

Mar 15, 2024

I'm looking for some critique on my current JM repotting process.

This tree was bought from a nursery last fall. It had a nice healthy root ball, but obviously as this was it's first time having root work done, there wasn't much left once I was done.

I screwed a 2" x 2" x 2" block to the bottom of the tree, lightly stapled a few of the roots (to guide their direction), then screwed the block to the bottom of the box. (this saves me from having to wire the tree to the pot, which for some reason I don't like doing). The block also keeps the roots off the bottom of the pot. (which has...

• The Warm Canuck
• Replies: 18
• Forum: General Discussion

If so, maybe it’s because it has almost no roots, they’re stapled down and buried too deep.

 

[The Warm Canuck]

Is that this maple?

Thread 'Critique my JM repotting method'

Mar 15, 2024

I'm looking for some critique on my current JM repotting process.

This tree was bought from a nursery last fall. It had a nice healthy root ball, but obviously as this was it's first time having root work done, there wasn't much left once I was done.

I screwed a 2" x 2" x 2" block to the bottom of the tree, lightly stapled a few of the roots (to guide their direction), then screwed the block to the bottom of the box. (this saves me from having to wire the tree to the pot, which for some reason I don't like doing). The block also keeps the roots off the bottom of the pot. (which has...

• The Warm Canuck
• Replies: 18
• Forum: General Discussion

If so, maybe it’s because it has almost no roots, they’re stapled down and buried too deep.

Yes it is, but It has grown fine for 4 months, wouldn't it have showed signs of weakness prior to this?

I also wondered about mechanical - wind related, or if the tree got blown off the bench, or if another tree or branches were striking the smaller tree in the wind.

It is in a windy area, yes, I use chemical fertilizer, but I'm careful to dilute it as per the package instructions but maybe some of the stronger stuff that I use for my ground grown trees got splashed on them.

I have dealt with this and it doesn't look like Pseudomonas damage. It looks environmental or even mechanical. Quite possibly over fertilizing or overs pray of some other product. It could well be one of the many types of leaf spot.

yes, I use chemical fertilizer, but I'm careful to dilute it as per the package instructions but maybe some of the stronger stuff that I use for my ground grown trees got splashed on them.

 

[Jrmcmich]

So I have 2 Japanese maples that have similar leaf problem. First year with them so not sure. All other trees look healthy but the Japanese maples not so much. I also have couple small trident sticks that don’t look as healthy. How’s your water source? I a, wondering if my city water has affected these as it’s around 750 ppm of TDS. I just recently got rain barrel system finished and finally have rain water to use other than going on vacation next week so will use automatic system for that. Just a thought on testing your water especially if other trees seem ok m

 

[The Warm Canuck]

So I have 2 Japanese maples that have similar leaf problem. First year with them so not sure. All other trees look healthy but the Japanese maples not so much. I also have couple small trident sticks that don’t look as healthy. How’s your water source? I a, wondering if my city water has affected these as it’s around 750 ppm of TDS. I just recently got rain barrel system finished and finally have rain water to use other than going on vacation next week so will use automatic system for that. Just a thought on testing your water especially if other trees seem ok m

I use well water. I have another tree from the same age, size and from the same parent, in the same pot repotted at the same time in the same manner and it doesn't have any problems. I am thinking that it was fert damage now.