I was told that our HOA forbids citrus trees,even in back yards. Does anyone know if this is true?  I have had citrus trees for 42 years and never heard of a virus or bug that bad enough to  forbid  growing citrus trees. Scottsdale had a problem with roof rats and a few roof rats showed up in Tempe. Citrus trees make sense. They give you something back for water use,,,,,,, not just a pretty tree. That seems GREEN to me,,,,,,,Cate

Robert,  I learned too late ( I have 5 citrus trees that are suffering) that If the hole in which your tree was planted wasn't dug deep enough to break through and remove the layer of caliche, then the water can't drain away and will literally drown your tree's roots.

You can find out whether this is your  problem by digging a hole about 3 feet deep about 4 or 5 feet from the base of your tree.  If the hole has water in it the next day, then that is your problem.   

I'm not an expert on anything, and certainly not on growing citrus, but my Internet research has taught me a little.  I just wish the landscapers, who are supposed to know about this stuff, would have planted mine properly.  

Blue Orchid,  Thank you for the info.  I'll check it out.