I fertilized it with about quarter pound of tropical palm fertilizer and about quarter pound of magnesium, the tree is about 13ft tall and about a 24 inch in diameter, and has been planted about 4 years now. After about 2 and a half week a guy from true green came to maintain my garden i told him i had already fertilized my palms, but he still did he said once two weeks has passed it would be ok, he used a hand full of fertilizer which he said was slow release. i dug a hole a broke one of the roots near the surface and it was golden brown like a smoked cigarette filter it was also trashy, the inside of my other palm roots are white and brittle. Is there any way i can save my palm from dying.