Disease threatens Florida palms
DAVIE, Fla. — Florida’s iconic palm trees are under attack from a fatal disease that turns them to dried crisps in months, with no chance for recovery once they become ill.
Spread by a rice-sized, plant-hopping insect, lethal bronzing has gone from a small infestation on Florida’s Gulf Coast to a nearly statewide problem in just over a decade. Tens of thousands of palm trees have died from the bacterial disease, and the pace of its spread is increasing, adding to environmental woes of a state already struggling to save its other arboreal icon, citrus trees, from two other diseases.
Florida’s official state tree — the tall, broad-leafed sabal palm — is especially susceptible and Florida nurseries, businesses and homeowners are taking a financial hit as they scrap infected palms. Some preventive measures can be taken, but once infected, uprooting the tree is the only practical solution.
“Getting this disease under control is essential because it has the potential to drastically modify our landscape,” said Brian Bahder, an entomologist who studies insectborne plant diseases and is a leader in the state’s battle against lethal bronzing.
If nothing is done, Bahder said, “I don’t think all the palm trees will die, but the issue we see will get a lot worse before it gets better.”
Lethal bronzing, which experts say likely originated in Mexico, also is found in parts of Texas and throughout the Caribbean. Some worry it will migrate to California and Arizona, infecting date palms and damaging that fruit crop. The disease has already heavily damaged Jamaica’s coconut plantations, and Brazil is taking preventive measures to avoid invasion.