I volunteer at a tree perserve. Our oldest oak tree has been marked with knives and the outer layer of bark has been removed. aprox. 18'' by 29''. I have been asked to try to find a way to cover (mask the damage) .
I am sorry to hear vandals did this to your tree. You can't exactly hide the damage and the tree will repair itself, but you can make it so that the names are no longer there. Method 2 at the bottom of this article explains how to do that to the bark: https://www.gardeningknowhow.com/ornamental/trees/tgen/repairing-tree-bark-damage.htm
Even on the parts that are cut deeply, you can cut a little deeper into the phloem and the cambium (deeper wood) layers to remove the deeper wood that would show what the words say. Do this just enough to obscure the words, perhaps just removing the interior of the letters. While it is awful they did it to such a grand old tree, fortunately, because it is older, it can take such damage and recover.
What grass will grow in shade under a live oak tree?
These articles will help you with planting grass there: https://www.gardeningknowhow.com/lawn-care/lgen/shade-tolerant-grass.htm, https://www.gardeningknowhow.com/ornamental/trees/tgen/tips-for-growing-grass-under-a-tree.htm, https://www.gardeningknowhow.com/lawn-care/lgen/growing-grass-shade.htm
Bought today one of those weed controls sprays that connects to garden hose. I did my entire front yard but now I'm worried about the rain that it is coming to San Antonio, Texas this comming Wed. could hurt my live oak in the front yard. Would the chemical hurt any trees? I'm not planning to water my grass tomorrow to make sure most have evaporated. How long does this type of chemical stay in the soil? (Spectracide- weed stop for lawns) I read your article where it says it usually takes 24 to 72 houes to evaporate. Should I be worried?
I think much of it should be evaporated by then with the remaining washed away by any incoming rain. I would not expect this to have a major effect on your oak tree.
When a live oak tree produces sprouts from its roots, will that sprout necessarily become a thick branch as part of the trunk?
This article will tell you all about tree suckers;
I recently purchased two Live Oak trees (6 feet tall?). Over the last 10 years I have lost 3 tall and beautiful Oaks to hurricanes, so I know that they will grow in my yard, but I am wondering if I need to prepare the soil for these transplants. My yard's soil is largely clay. Any suggestions for the planting? Thanks, Mike
As this article explains, live oak's ideal soil type is a loam with acidic pH, but these trees are tolerant of many soil conditions:
Alkaline soils can cause nutrient absorption problems in oaks, so if a soil test shows yours is significantly above 7, amend your soil to a neutral or slightly acidic pH. The most important consideration is to make sure these large trees will have enough room to grow in your chosen location.
Here are some articles with suggestions for planting:
Many small spider web roots around a Live Oak tree are shooting up into tiny tree like sprouts. Too much dirt was around the tree and roots just went wild. I am having the small roots cut out to surrounding ground level. What can be done to prevent this from reoccurring?
Unfortunately there is really nothing that can be done to stop an Oak Tree from growing sprouts.
This is the trees nature to propagate in this manner; since the sprouts are connected to the main tree, any chemical application can kill the tree.
The best approach is to keep them in check by cutting them as soon as they appear or digging them out.
Another suggestion may be to plant a grass, like St Augustine or Zoysia. When cutting the grass the sprouts will be cut as well.
I am trying to identify a type of tree I have seen used as an ornamental in landscaping. The leaves look like an oak leaf. The trees keep their leaves through the winter (although they turn brown) and drop them in the spring just before the new leave come out. The trees only grow 10 to 20 ft tall, and about 5 ft wide, in a cylindrical shape. They seem like they would make a great privacy screen between houses. Can anyone tell me what kind of tree I am looking for. PS I live in Northern UT. Doug
There are many cultivators of Dwarf Oak's.
You may want to take an image to your local County Extension Office for help in identifying the trees that are growing in your specific region.
Here are some links with more information.