The bark of a tree is falling off. What does it mean?
It can mean several things. Some varieties of trees shed bark naturally. It may also be a fungus or bacteria attacking the tree. It may also be caused by cold or heat damage.
What variety of tree do you have and are you seeing any other signs of stress or disease on the tree?
I have tree trunks in my new yard. How do I get rid of them or make them rot faster?
The best you can do without manual removal is to make sure it rots faster. Drill some holes in it and fill them with a high nitrogen fertilizer, then water the stump. Repeat this every few months and the tree stump should rot quickly.
Trees seem to be dead at the top but are coming out at the base. Will they grow out to make a tree?
These are called suckers. Most of the time they grow more shrub like than tree like. Beyond this, what you describe is something that can happen to grafted trees. The grated scion (the part above the ground) dies in severe cold. The more hardy rootstock (what the scion was grafted to) survives and since the scion is gone, sends up suckers to try to survive. What I mean to say is that it is unlikely the suckers at the base are the same variety of tree that you originally planted there.
Can tree sap cause car paint work to blister?
Not too sure about the effects of sap on cars; however, the following article should be of some help: https://www.gardeningknowhow.com/ornamental/trees/tgen/how-to-remove-tree-sap.htm
My friend has several unwanted trees in her garden that need taking out but are too established to pull! There is one trunk that can't be removed but needs to rot. How do you start a destroying process?
Drill holes in the trunk stump and then pour high nitrogen fertilizer in the hole. The holes. The fertilizer will give a jump start to teh bacteria that help to break down wood.
I have these worms that are taking over my tree. I need to know how to get rid of these pests. I am afraid they are going to kill my tree, there are thousands of them.
They would not happen to be tent worms, would they?:
My tree is dying. I've lost half a side. There seems to be some type of mold on it that is also on the rocks around it. What should I do?
The mold is likely lichen. It is not killing the tree, but rather a symptom of it dying. Lichen are especially attracted to trees that are sick and dying already.
What kind of tree is it and what sort of symptoms does it have? We may be able to diagnose it for you.
There are a few things it might be. The first is that it is dying of old age, especially if it's an ornamental. Ornamental trees have a rather short lifespan, 10-15 years normally. Another may be a fungus disease (it would not be visible like the lichen is). You can treat the tree with a fungicide, like neem oil, to help combat that. There may also be something attacking the roots, but on a large tree, it can be difficult to check the roots. Check around the trunk for any signs that there is damage there to indicate if there is a pest in the roots.