Garden Pests and Diseases: Desert Museum Palos Verde sick, matted leaves. Help!, 2 by PabLoLA

PabLoLA wrote:
I purchased a 12 foot Desert Museum Palos Verde and planted it a year ago. I live in Los Angeles. It thrived last year and flowered until November. We had a wet winter and spring. I live a few miles from the coast and we have cool, damp, overcast weather every day till about noon throughout the spring and early summer. Then generally hot sunshine for the rest of the summer and fall. This spring the palo verde had a silvery white coating on most of it\'s leaves. I sprayed it with a copper fungicide and it looked a little better, but still silvery. It bloomed, but not like last year. Now the bloom has pretty much stopped and the leaves are less silver, but look matted and irregular, forming big clumps near small branches. The branches and trunk look green. I don\'t know what to do. Should I spray it every week with copper. I have two smaller Desert Museums in the back yard. They were very small when I planted last August. They also had the silvery stuff this spring but seem to have fought it off and are now growing great with nice bloom and nicely shaped leaves. They get a little more sun earlier in the day than the large one in the front yard that is struggling. Any help you could give me would be gratefully accepted. I don\'t want to lose this tree. I\'ve attached some photos of the matted leaves. Thanks in advance for your help!