
One of our blog readers asked us, "I have a crepe myrtle tree that has limbs that are dead, can my tree be saved?"
Without examing the tree in question, there are some signs you can look for in your own trees and steps you can take.
First of all, dead limbs should be removed, and removed properly. Look at our blog post on how to prune to see how (or check out the website www.TreesAreGood.com).
Second, look for signs of your tree's overall health. 
- Look at the base of the tree and the ground around it. Are there signs of upheaval? Has the ground been disturbed lately or soil added on? Is there grass that is fighting for the same nutrients? Keep the soil undisturbed around established trees, being sure to keep the root flare intact. The only acceptable addition is mulch, and that must be kept 2 - 3 inches away from the root flare.
- Look at the trunk. Is there splitting? Are there signs of damage (such as something hitting it)? Is there a lot of sap running down? These are more serious signs of damage that could cause the death of a tree. If a tree can't heal itself, it will die. In that case, it's best to remove the tree and plant a new one.
- Look at the canopy. Is there a lot of deadwood? Are there signs of a fungus or insect infestation? Are the leaves healthy or are they showing signs of stress? Depending on what you see, you could either treat the problem (such as an insect infestation) or acknowledge that your tree is in its death spiral.
Finally, when in doubt, consult a professional. In that case, you want to call in an ISA certified arborist because he or she has the training and knowledge to properly assess your tree (don't fall for the "I'm a tree surgeon" line or "I'm an arborist" sales line--those mean nothing). Someone with a degree in horticulture might also be able to offer professional advice, although it's surprising how little some horticulturists know about trees specifically. They are often experts in shrubs, flowers, and ground cover, but unschooled in trees.
We hope this information helps!