I pruned the brown leaves on Mexican Palm and the fronds have a while powdery growth on the stem. The brown fronds were sprinkled throughout the tree. How do I treat and is it fatal? The substance is on the stems of healthy looking fronds throughout the tree.
: The leaves on my plam are turning brown.
: We have had a few nights below
: freezing, but not many. This has just
: happened within the last month or so.
: We are at 4600 ft. above sea level. any