Adonidia (Christmas) palms with mushy, rotted trunk tissue just below the crown, and green only 4–6 inches down, have bud rot. The crown is dead.
Spraying the green trunk area with copper fungicide is a long shot. Recovery, if any, takes 6+ months. Most will not survive. Replace with foxtail or Sylvester date palm for better cold tolerance.
Frost-Damaged Double Foxtail Palm: One Trunk Declining
Trimming a Ponytail Palm: The "Haircut" Method
Adonidia Palm Cold Damage: Diagnosis and Recovery Guide
Reviving Frostbitten Yucca and Traumatized Ponytail Palm: Dormancy Myths and Proper Care
Ant Infestation in Queen Palm: Carpenter Ants vs. Harmless Species
Adonidia Palm Transplant Shock: Drooping Fronds After Repotting
Robellini Palm Trunk Fungus After Freeze Damage
Storm Damage on Mature Conifer: Wound Care and Long-Term Assessment
Maple Borer Infestation in Old Wound: Treatment and Risk
Mushrooms on Ash Trunk: Internal Decay, Not a Death Sentence
Maple Trunk Suckers: Normal Response to Sunlight
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