We have a newly planted Maple tree. It has light green patches on the bark. They are easily scratched off. The patches have small round cells in it. They are about 1/32" round. What is this? Is it harmful? And how to treat it if it is harmful? Can you reply to Oakhaus3@hotmail.com
This could be something as simple a lichen forming on the trunk or more serious diseases.
These articles address these issue. You may need to do some further inspections of the tree; the trunk and leaves to help may a correct identification and then how to treat the issue.
https://www.gardeningknowhow.com/ornamental/trees/maple/maple-tree-bark-disease.htm
https://www.gardeningknowhow.com/ornamental/fungus-lichen/treatment-tree-lichen.htm
We have a hybrid maple tree that we planted 4 years ago. Late last spring and again late this spring our tree lost all of its leaves. Last year it grew another set of leaves which stayed on until later in the fall it looks like it is going to grow new leaves again this year. I have never heard of this happening before, can you give an explanation?
Pre-mature leaf drop like that can be related to a pest or disease issue, or drought stress.
A good inspection of the tree; its bark, branches and leaves that have dropped may have more clues.
I had 2 October Maples planted several weeks ago, one is doing great, the second tree's leaves are turning brown and dying I water them the same, I got water gators for them so they are watered slowly, and I asked my local garden shop if there was food to give them and was told no. Is there something I should be doing differently to help the second tree survive?? I don't want it to die! I have twins and I'd like to keep them both They get direct sunlight all day.
Sometimes this just happens. They can fail to thrive if they get put out when it is too hot. This can cause the roots to start dying before it gets a chance to be established.
This can be exacerbated by overwatering, or the soil remaining too wet and not being allowed dry out a little between watering. Even when it is establishing, even though it needs to stay a little moist, it needs to be able to dry out some.
Unfortunately, it may be on its way out, and need to be replanted. It will not grow as fast as your other tree, since it is infected, but with a fungicide, you may be able to fight the infection. The best option will be to replant, though.
This article will give you more information on fungicide use: https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
For the past two years I have been finding rotted tree bark and branches, chewed or broken leaves from my somehow sick maple trees, as well as other garden debris wrapped around my healthy shrub or in between my ornamental pines but mainly a problem for a hedge of Six ‘spitfire’ hydrangeas! Wherever the debris is left, the pine tree/ bush or shrub and other perennials become brown, foliage falls off! What is causing thiis?Why??
I'm a bit unclear on the question.
This link has information on Maple Tree diseases.
https://www.gardeningknowhow.com/ornamental/trees/maple/maple-tree-bark-disease.htm
We do recommend raking and removing any leaves that fall that may be infected with pests or diseases to keep from spreading to other plants.
You should dispose of and not compost this litter.
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we have two red feathery type leaf acers. They have both got branches shooting out of the main trunk that are green and the maple type leaf. The green leaf branches are growing really well but the red tree not so well. Should we cut the new green shoots/branches off? I hope you can help us cos I love acers. Thank you
Suckers should be removed.
Our young maple tree lost its center trunk this winter. There are 4-5 main beaches left. One of the 5 is starting to look like it is going to take the center branches place. The potential problem is the other 4 main branches are growing horizontal. Do we trim those 4 horizontal branches?
Yes, you should reduce the horizontal branches by pruning off 1/4 to 1/3 of the length at this time. During dormancy you may choose reduce a little more.
Let the new developing central leader do its thing, until it appears to be excessively tall and not branching and in danger of leaning and breaking. You can snip a few inches to suppress apical dominance and re-direct slightly into a "modified central leader".
Without seeing the damage, it would be hard to say. If it is a fungal infection, then treating with an insecticide won't help. If it is an insect, then treating with a fungicide will not help. It is important to be able to see exactly what is causing the issue in order to give you a proper diagnosis. My best guesses would be insect, or fungal/bacterial infections. These articles will help:
https://www.gardeningknowhow.com/special/organic/what-are-organic-pesticides.htm
ttps://www.gardeningknowhow.com/special/organic/natural-home-pesticides-organic-garden-pest-control.htm
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm