I have a dying tree near the house and need to have it cut down. Should I be concerned about the root system dying and erosion of the ground or house foundation?
No, this should not be a problem. Just make sure to plant grass or some other vegetation there in the near future so that as the root system decays, and is not able to hold the soil together, another root system takes its place in holding the soil.
I have a very young tree - less than 10 years old, around 7. The tree itself seems in good shape, but it didn't have leaves this year or most of last. Other than calling an arborist, is there something I can do to check or help it?
You can sometimes gently scrape the bark of branches and if you see green underneath, it is still alive. If it's brittle and brown, then it's dead. Here is an article that you may find helpful: https://www.gardeningknowhow.com/ornamental/trees/tgen/what-does-a-dying-tree-look-like-signs-that-a-tree-is-dying.htm
There is sap oozing at the base of my tree. Could be caused by insects? What can be done? The tree is about 20 feet tall with large leaves in summer.
What kind of tree is it? It might be insects or it might be root gall. It could also be due to temperature fluctuations. This all depends on the type of tree. Knowing the variety of tree would allow us to give better advice on the cause and how to treat it.
I am repairing a split tree trunk by bolting the split portion to the main trunk. At the top of the split, there is an open, uncovered portion showing the trunk center. What inert material can I put in there to protect the trunk center from rain, bugs etc. until the tree grows bark over this damaged area? The tree is basically healthy otherwise.
I would gently wrap a piece of plastic over the area, but check it frequently. The biggest danger to a tree in this state is disease. Check to make sure this is not setting in and remove the plastic ASAP if you see it. Do not use tar or other permanent sealers. These can trap disease against the trunk and and you will have no way of removing it if disease sets in.
I have two trees that apparently aren't dead (says my landscaper). What is a product I can put in the base of the tree that will help it grow again?
What kind of trees are these? How old are they? And do you know what caused their decline? This information will help us to give you accurate information about the care for these trees.
As for whether or not the trees are actually dead, you can check this yourself by gently scrape the bark to see if there is any green underneath, and if so, it is still alive. If it's brittle and brown, then it's dead. Here is an article that you may find helpful: https://www.gardeningknowhow.com/ornamental/trees/tgen/what-does-a-dying-tree-look-like-signs-that-a-tree-is-dying.htm
I want to know the best way to remove tree suckers that are away from the tree (5-10 feet away). They have been there for a long time (years). Is it safe to dig down around them and prune them off?
This article should help: https://www.gardeningknowhow.com/ornamental/trees/tgen/tree-sucker-removal-and-tree-sucker-control.htm
I have a large, beautiful tree that suffered a severe injury two weeks ago during a storm. The tree is about 55 feet in height and had three main branches rising from the trunk at around two feet high. The branches were of equal size. One of those main branches broke completely off and left a gaping injury all the way down to the very base of the trunk. The tree is very healthy, and I believe it will recover and have a long life if I can prevent disease/pests from invading the injury. Problem is, I have no idea how to do that. Any suggestions would be greatly appreciated! I am currently renting my home and the owner wants to fell the tree, but I convinced him that I could tend to it and help it recover.
The following articles should be of some help to you:
https://www.gardeningknowhow.com/ornamental/trees/tgen/what-to-do-for-storm-damage-trees-repair.htm
https://www.gardeningknowhow.com/ornamental/trees/tgen/repairing-tree-bark-damage.htm