Hello Palmpedia Friends, I've had this little Pinanga for about two years and was growing fine. This summer he just took a turn for the worse. I re-potted him last month and applied nutricote. Then last week, I tried pouring some hydrogen peroxide (3%) on the crown. Nothing has helped so far. He is in full shade and gets plenty of water with a fast draining soil of peat, sand, perlite and a little cypress sawdust. I would appreciate any advice. Thank you in advance!