Start with cultural causes
Many apparent disease symptoms begin with water, wounds, planting depth or stress. Before applying a treatment, check the root zone, trunk, crown, irrigation history and recent maintenance.
Wounds create entry points
Trunk wounds from spikes, tools, equipment or careless pruning can open a path for serious pathogens. Professional crews should sanitize tools and avoid cutting into living trunk tissue.
Crown moisture can become crown trouble
Overhead irrigation, storm injury, freeze damage and over-pruning can increase risk around the terminal bud. The newest spear is one of the first places to watch.
Use the palm-problems guide for triage
The full Diseases, Pests and Problems page organizes visible symptoms by urgency. Suspected lethal disease, structural decay or regulated pests should be escalated to qualified local professionals.