Ganoderma zonatum is a plant pathogen that infects the palm species causing butt rot.

It is a fungus that infects the bottom 122–152 centimeters (4–5 feet) of the plant also rotting the roots.

Symptoms of Ganoderma zonatum are general decline in the health of a plant, wilting and discoloration of the leaves and slow growth.

One is the basidiocarp (or conk) forming on the plant with the other viewing the internal rotting of the palm on the inside once it has been cut down.

[1] However minimizing the amount of moisture can decrease the risk of a palm becoming infected by the fungus.