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Guazuma ulmifolia (Sterculiaceae), a new natural host of 16SrXV phytoplasma in Costa Rica
Guazuma ulmifolia (Sterculiaceae), un nuevo hospedero natural de fitoplasmas del grupo 16SrXV en Costa Rica
Guacimo trees (Guazuma ulmifolia, Sterculiaceae) showing witches’ broom symptoms (GWB), small leaves, short internodes, stunting and no flower and fruit production were observed on side roads and fences in different areas ...
‘Candidatus Phytoplasma costaricanum’ a novel phytoplasma associated with an emerging disease in soybean (Glycine max).
A novel phytoplasma, designated strain SoyST1c1, associated with a newly emerging disease in soybean (Glycine max), known as soybean stunt (SoyST), was found in 2002 in a soybean plantation in Alajuela Province, Costa Rica. ...
Catharanthus roseus (Apocynaceae) naturally infected with diverse phytoplasmas in Costa Rica
Catharanthus roseus (Apocynaceae) naturalmente infectada con diversos fitoplasmas en Costa Rica
Phytoplasmas (class Mollicutes) are causal agents of plant diseases with an economic impact on crops or threatening local biodiversity. A survey was conducted from 2012 to 2016 on infected Catharanthus roseus plants that ...
First Report of Xylella fastidiosa in Avocado in Costa Rica
Since the late 1990s, chlorotic mottling, marginal scorch, deformation of leaves, defoliation, shortening of internodes, and branch dieback have been observed in avocado trees (Persea americana Mill.) in Costa Rica. The ...
Isolation and molecular characterization of Xylella fastidiosa from coffee plants in Costa Rica.
Coffee plants exhibiting a range of symptoms including mild to severe curling of leaf margins, chlorosis and deformation of leaves, stunting of plants, shortening of internodes, and dieback of branches have been reported ...
First Report of Xylella fastidiosa Infecting Citrus in Costa Rica
Citrus variegated chlorosis (CVC) is an important disease mainly of sweet orange (Citrus sinensis (L.) Osbeck) cultivars. It was first described in Brazil in the state of Sā Paulo in 1987 (4). The disease has spread to all ...
First Report of the Cymbidium Mosaic Potexvirus (CymMV) Infecting the Terrestrial Orchid Phaius tankervilliae in Costa Rica
In 1996, plants of the terrestrial orchid Phaius tankervilliae from a nursery in the Central Valley of Costa Rica were observed with mild to severe foliar symptoms of chlorotic streak. No differences were observed in growth, ...
Detección del viroide de la exocortis en plantaciones comerciales, utilizando la selección 861-S1 del cidro Etrog (Citrus medica L.)
Detection of CEVd in an orange grove using the Arizona 861-S1 selection of the ‘Etrog’ citron
La prueba de infectividad empleada tradicionalmente para el viroide de la exocortis consiste en injertar yemas de los árboles por evaluar en clones sensibles, como el cidro Arizona 861-S1, el cual ha sido previamente ...
First Report of Citrus variegation virus in Palestine Sweet Lime, as Coffee Shade in Costa Rica
Symptoms resembling those of Citrus variegation virus (CVV) were observed in old Palestine sweet lime trees (Citrus limettioides Tan.) used as coffee shade in the Central Valley in Costa Rica. The symptoms include leaf ...