I read with fascination about this disease. It is mine through and through. My questions is, do I need to change the dirt after getting it all cleaned?
It is not necessary to change the dirt. This may harm the plant as it is already under stress.
My palm tree is sticky and has little brown flakes that appear to be wet and wipe off the tree. Any suggestions?
This article will help: https://www.gardeningknowhow.com/houseplants/palms/sticky-palm-tree-leaves-treatment-for-palm-scale.htm
I have recently purchased a palm tree and would like to put it in a container on my deck. Can you help me determine how?
This article should help, as it can also be applied to growing palms: https://www.gardeningknowhow.com/special/containers/how-to-grow-container-trees.htm
How often should I spray the alcohol/water mixture on the palm leaves, daily, weekly?
Weekly is good. You want to be careful with it as the alcohol can dry out the leaves if used too much.
I had some small palms removed, but the roots are still there. How do I get rid of them?
Undiluted Round-up will help kill the roots. You will need to wound the roots (normally, people cut the suckers down and use those wounds) and then paint the undiluted Round-up on the wounds. The bigger or more wounds you paint, the better. The roots will suck the Round-up in and it will kill them. You may have to repeat the process a few times to fully kill the roots if the root system is still strong.
We had a palm tree in a planter for a number of years. It was severely root bound. We finally made the decision to transplant it into the ground. It never took root. Eventually, it lost its fronds and it appears to be dying. Can we save it?
It is experiencing transplant shock. This article will help:
https://www.gardeningknowhow.com/plant-problems/environmental/learn-how-to-avoid-and-repair-transplant-shock-in-plants.htm
I have several palm trees in my yard in NC. What will cause them to bleed, and is there a cure?
Your trees could be affected by scale. This article has more information: https://www.gardeningknowhow.com/houseplants/palms/sticky-palm-tree-leaves-treatment-for-palm-scale.htm