I'm worried about buying a tree and finding it is impossible to dig a new hole due to the old roots. ==>>> ummm ... go dig a hole ... THEN GO BUY A PLANT ... just cut or ax out any dead roots ... or move your hole enough inches over ... to avoid any big roots .... starting the new hole about 3 feet away from the stump ... out to be about right ... personally.. i wouldn't go in the exact spot ... just too much work ... there is no rule.. you have to dig AFTER buying a plant ... ken ps: call miss dig about utilities if there is ANY chance of anything being under the ground ....

Thanks for sharing! I knew I was addicted when my credit card magnetic strip started wearing out the year I started buying up all the sweet citrus I could find. I'm sure it was coincidence. I numbered all my trees and started spreadsheet and religiously keep it up-to-date (with repot, pest, and general health info) so I know what's what. Of the two trees I've given as gifts, only on is alive and *barely*. Happy citrus growing...

These are not mealybugs. Cottony cushion scale is very difficult to control...and can lead to the demise of citrus if left unchecked. Your good image shows a number of female scales carrying full egg sacs around with them. Each sac holds many hundreds of bright red eggs. Tear open one and take a look for yourself. After the eggs hatch, the 'crawlers '(hatchlings) take off and go exploring....as a matter of fact, this particular scale stays mobile. Early instar stages look entirely different from their highly recognizable egg parents, which makes their control even more difficult. Hand wiping with alcohol a nearly futile option. I believe I see one of the earlier nymphs in the picture...at 3:00 o'clock just to the right of the adults. The younger crawlers are much too small to observe easily. You should do a bit of research that you know what cottony cushion scale insects look like in all stages. Also important is recognizing the beneficial critters that usually do a great job of control for us. A species of ladybug, the Vedalia beetle is the most important predator of these pests. There are no good chemical controls. This post was edited by rhizo_1 on Tue, Mar 19, 13 at 18:18

Try searching here http://edis.ifas.ufl.edu/TOPIC_Citrus_Pests_Diseases Here is a link that might be useful: Citrus Disease