sabal pametto Sabal palmetto new growth anomaly

[robert Lauriault]

I have a cabbage palm, eight feet of clear trunk, approximately twenty-five years old from a natural seeding, growing immediately adjacent to the front porch of my log cabin built on block pilings in 1985.  This winter and spring the tree began producing new growth abnormally. Instead of growing fronds on the usual extended petioles,  all the new fronds are clustered tightly together as one sees on newly transplanted cabbage palms in full sun (my tree is in 60 percent shade under deciduous bald cypress). The only events that I can imagine that could have had any impact on the tree are (1) my roofer made some minor repairs to my porch roof and cut off the fronds that were overhanging the roof and (2) the periphery of my house was treated, as usual, with a pesticide to control roaches and other insects. The removed fronds represented no more than thirty percent of the total crown.  I have a dense stand of gingers on both sides of the palm and these show no change in appearance and seem to be growing well. 

Anyone have any ideas?

[Jimbean]

First of all this should be in the general discussion forum.  Second, can you please post photos