Sampling Palms for Lethal Yellowing and Texas Phoenix Palm Decline Phytoplasmas

Molecular detection and characterization of phytoplasmas associated with lethal yellowing disease of coconut palms in Jamaica

Tissue samples were collected from coconut palms with symptoms of lethal yellowing (LY) disease in Jamaica. Palms were sampled at 50 sites exhibiting varying levels of mortality due to LY. Samples were assayed for phytoplasma infection by polymerase chain reaction (PCR) assays. Detected phytoplasmas were characterized by dot blot nucleic acid hybridisation, restriction fragment length polymorph...

Coconut Lethal Yellowing Diseases: A Phytoplasma Threat to Palms of Global Economic and Social Significance

The recent discovery of Bogia coconut syndrome in Papua New Guinea (PNG) is the first report of a lethal yellowing disease (LYD) in Oceania. Numerous outbreaks of LYDs of coconut have been recorded in the Caribbean and Africa since the late Nineteenth century and have caused the death of millions of palms across several continents during the Twentieth century. Despite the severity of economic l...

Effect of Various Antibiotics on Development of Lethal Yellowing in Coconut Palm

Fifty coconut palms exhibiting early symptoms of lethal yellowing were selected for treatment with oxytetracycline-HCl, tetracyclineHC1, streptomycin nitrate, potassium penicillin-G, or griseofulyin. Two grams of antibiotic in 0.2 or 1.0 liters of water were pressure injected into the trunk of each tree except for the griseofulvin treatments which were applied as a paste into holes bored in the...

Phytoplasmas Associated with Ash Decline

Fusarium Decline of Queen Palms and Mexican Fan Palms in Florida July 2007 Update

For those of you familiar with previous updates, you might recall the title was “New Disease of Queen Palms (Syagrus romanzoffiana) in the South Florida Landscape.” The change in the title reflects additional information obtained since the last update prepared in May 2006. This document is a summary of information regarding this new disease. If you only want to know the “bottom line,” please fa...