- Phytoplasmas and Hemiptera pathogens
- Cocoa and Sweet Potato Agronomy
- Plant Pathogenic Bacteria Studies
- Insect-Plant Interactions and Control
- Insect symbiosis and bacterial influences
- Coconut Research and Applications
- Plant Pathogens and Fungal Diseases
- Studies on Chitinases and Chitosanases
- Banana Cultivation and Research
- Research on scale insects
- Insect behavior and control techniques
- Plant pathogens and resistance mechanisms
- Date Palm Research Studies
- Plant Physiology and Cultivation Studies
- Yeasts and Rust Fungi Studies
- Entomopathogenic Microorganisms in Pest Control
- melanin and skin pigmentation
- Peanut Plant Research Studies
University of Technology, Jamaica
2007-2024
Coconut Industry Board
2002-2024
Regional Municipality of Waterloo
2023-2024
Kingston Technology (United States)
2023
Creedmoor Psychiatric Center
2023
A new species of cixiid planthopper (Hemiptera: Fulgoroidea) in the genus Oecleus Stål, mackaspringi sp. n., is described from Spring Garden, Jamaica. This taxon associated with coconut palm (Cocos nucifera L.) and was found while surveying plots active cases lethal yellowing (LY). first report Sequence data for COI gene 18S are also provided.
A new species of the genus Agoo Bahder & Bartlett, beani sp. n. was found associated with coconut (Cocos nucifera L., Arecaceae) in Jamaica. This discovered as part a survey Caribbean basin to document planthopper diversity on palms. Cytochrome c oxidase subunit I (COI) and 18S sequence data strongly support placement Agoo. The morphological features Omolicna cocoana Rodriguez-Leon Hidalgo-Gato from Cuba are reviewed this transferred into
A new species of Colpoptera Burmeister, 1835, C. japortla sp. nov. (Colpopterinae: Colpopterini), is described from Jamaica. The was found during a survey planthoppers associated with coconut palms to document taxa that are potential phytoplasma vectors. Molecular data for the five-prime region cytochrome c oxidase subunit I (COI) gene and 18S rRNA provided compared available members Colpopterini. Syntypes rugosa Van Duzee borrowed comparison were be mixed series including representatives...
Summary DNA of phytoplasmas in lethal yellowing (LY)‐diseased palms was detected by a nested polymerase chain reaction (PCR) assay employing rRNA primer pair P1/P7 followed LY16Sf/ LY16‐23Sr. Polymorphisms revealed Hinfl endonuclease digestion rDNA products differentiated coconut‐infecting Jamaica from those Florida, Honduras and Mexico. A three fragment profile generated for infecting all 21 Jamaican whereas five evident the majority Florida (20 21), Honduran (13 14) Mexican (5 5) palms....
Haplaxius crudus is an economically important species of cixiid planthopper that widespread and abundant throughout the Caribbean basin. It vector lethal yellowing putative bronzing, both phytoplasma diseases palm cause death in Florida Caribbean. The primary objective this study was to evaluate genetic diversity H. determine whether divergent populations existed. 5′ region cytochrome c oxidase subunit I gene used as molecular marker. DNA sequences were obtained from 236 specimens collected...
A new species of Jamaha Gnezdilov & O'Brien, 2008, is described from Jamaica and compared with other in the genus. key to provided. Molecular data for five-prime region cytochrome c oxidase subunit I (COI) gene 18S rRNA provided available Colpopterini, Nogodinidae as outgroup, a preliminary phylogenetic analysis. While Colpopterini grouped high support, these remain too sparse draw firm conclusions.
During a survey in Trinidad and Grenada for putative vectors of palm lethal decline phytoplasmas, three species planthopper the genus Melanoliarus (Hemiptera, Cixiidae) were collected. maidis was collected from coconut palms Grenada, M. kindli grasses plot new Trinidad. Herein novel taxon is described with supplementary molecular data cytochrome c oxidase subunit I (COI) gene, 18S rRNA histone 3 (H3) gene to support placement strict sense.
Coconut (Cocos nucifera) is an important perennial crop. Lethal yellowing (LY), a phytoplasma-associated disease, has been devastating coconut production in parts of the Caribbean. Local officials Antigua observed widespread mortality palms due to unknown disease. palm, Christmas palm (Adonidia merrillii) Chinese fan (Livistona chinensis), edible date (Phoenix dactylifera), and Fiji (Pritchardia pacifica) were most affected. This new development followed previous reports LY St Kitts (Myrie...
Coconuts (Cocos nucifera) are an important small-holder's crop in many tropical countries and used to enhance esthetics of coastal areas. Lethal yellowing (LY) is the single most plant disease affecting coconut industry Jamaica. It affects palm species Jamaica, Florida, Guatemala. This was first recorded Grand Cayman Island 1834 Jamaica 1884. Symptoms LY include premature nut fall, necrosis inflorescence, leaves, defoliation. Thirty-eight palms displaying symptoms indicative were sampled...
Coconuts (Cocos nucifera) are grown as a crop and amenity trees in many tropical countries. Caribbean countries use coconuts to enhance the aesthetics of sandy coastal beaches. Lethal yellowing (LY) phytoplasma disease, is single most important plant disease affecting coconut production some This also affects 35 other palm species Florida, various LY was first observed Cayman Islands Jamaica 100 years ago became devastating malady 1970s Jamaica. Widespread mortality on St. Kitts, Leeward...
Abstract “Huanglongbing” (HLB) is one of the most devastating diseases citrus orchards worldwide. Samples from 183 plants different cultivars and rootstock/cultivar combinations, showing HLB symptoms in three Caribbean countries (Cuba, Jamaica, Guadeloupe-France), were collected to verify possible co-infection ‘ Candidatus Phytoplasma’ Liberibacter’ species. The 64% samples resulted positive Ca . L. asiaticus ’ 27% diverse Phytoplasma’-related species, moreover about 14% infected with also...
During survey work for planthoppers associated with palms in Jamaica, one new species of Patara was collected at the Castleton Botanic Garden and is here described as euryfrons sp. n. The unusual having a much broader head than normally found members genus. Supplementary molecular data barcoding region (5’ half) cytochrome c oxidase subunit I (COI), 18S rRNA gene D9-D10 expansion 28S provided to support placement novel taxon Patara.
Coconut lethal yellowing (LY) is the single most important disease presently affecting coconut production worldwide. Symptomatic and asymptomatic plants were sampled in some selected areas to verify identity of phytoplasmas associated with LY Cuba. Diverse phytoplasma ribosomal groups detected samples from symptomatic palms such as 16SrXII, 16SrVII, 16SrI. In several other 16SrIV-A subgroup identified, groEL gene only positive plant Pilon resulted diverse others identical strains Jamaica...
The relentless spread of the fatal disease lethal yellowing (LY) throughout coconut growing areas is having a serious impact on many vulnerable communities. Phytoplasmas from 16SrIV group are associated agents. These obligated phytopathogenic mollicutes systemically colonize phloem tissues inducing numerous biochemical and physiological changes leading to symptom development ultimate death palms. Large numbers trees succumbed over past three decades. There different subgroups phytoplasmas...
Actualización de las estrategias manejo plagas
Recent survey work in Jamaica on palm-associated planthoppers seeks to identify putative vectors of the lethal yellowing phytoplasma. Herein, a new species planthopper, Bothriocera harthi sp. n., is described from coconut palm. Molecular data for cytochrome c oxidase subunit I (COI), 18S rRNA gene, histone 3 (H3) and 28S gene provided support placement novel taxon Bothriocera. These findings are important because it provides help better understand diversity evolution this unique group planthoppers.