Environmental Impact of Lethal Yellowing Disease of Coconut Palms

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Abstract
Lethal Yellowing disease has been devastating Coconut, and presumably 14 other species of palms (including Palmyra and Date Palms), in mainland Florida since 1971. The urban environment has changed rapidly with the death of palm trees along streets, parks, and beaches. The disease is now present around the Caribbean Sea and presumably in West Africa.Widespread injections of oxytetracycline into both diseased and healthy palms are now being carried out in Florida in an effort to control the disease temporarily. The vector has not yet been identified. ‘Malayan Dwarf’ variety and the newly developed ‘Maypan’ hybrid are resistant to the disease and are being used to replace more susceptible varieties.The potential for environmental and economic disaster from the introduction of the disease to unaffected tropical countries, and the need for controlling its spread, are emphasized.