Q: Two of my palms have what appear to be yellow mushrooms growing out of the bottom of their trunks. Some of their fronds are yellowing, too. My neighbor says I have butt rot. Can this be true? I’ve never had butt rot but am itching to find out what causes it. Please help. A: Your neighbor’s right. You do have butt rot. But we’ll help you get to the bottom of it. Here’s what you need to know. What is it? Ganoderma butt rot is a lethal disease of palms caused by the fungus Ganoderma Continue Reading