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Plantas hospederas de Aphis gossypii (Aphididae), vector de virus del melón Cucumis melo (Cucurbitaceae) en Costa Rica
(Universidad de Costa Rica, 2001)
Se identificaron las especies hospederas naturales de Aphis gossypii Glover (Aphididae: Homoptera) en plantaciones comerciales de melón para la exportación en Costa Rica. El estudio se realizó en dos fincas, ubicadas una ...
First Report of New Phytoplasma Diseases Associated with Soybean, Sweet Pepper, and Passion Fruit in Costa Rica
(2009-02)
A new soybean disease outbreak occurred in 2002 in a soybean (Glycine max) plantation in Alajuela Province, Costa Rica. Symptoms on the affected plants included general stunting, small leaves, formation of excessive buds, ...
Comparative Epidemiology of Citrus tristeza virus in Plantings of Various Citrus Species in Costa Rica, and Long Distance Spread by the Brown Citrus Aphid
(2002)
Five 400-tree plots were established to compare the virus increase and spread of Citrus tristeza virus (CTV) among grapefruit, orange and lemon plots in San Carlos and Nicoya citrus producing areas of Costa Rica. Tree ...
First report of Xylella fastidiosa infecting coffee in Costa Rica
(2001-09)
In 1995, severe symptoms were observed on ‘Caturra’ and ‘Catuaí’ coffee (Coffea arabica L.) varieties in farms in the southern part of the Central Valley in Costa Rica. Symptoms were reduced leaf size, malformation of ...
Field Survey of Cucumber mosaic virus Subgroups I and II in Crop Plants in Costa Rica
(2001-09)
Leaf samples were collected from cucurbit and solanaceous crop plants and Musa spp. in 28 locations in five provinces of Costa Rica during the period from January to October 1996. Sampling sites were selected in dry, humid, ...
First Report of an Aster Yellows Subgroup 16SrI-B Phytoplasma Infecting Chayote in Costa Rica
(2002-03)
An outbreak of a witches' broom disease affected approximately 20% of plants in several chayote (Sechium edule (Jacq.) Schwartz) fields in the commercial production area of the Ujarrás Valley, Cartago Province, Costa Rica ...
Identification and distribution of melon infecting viruses and their vectors in two provinces of Costa Rica
(1993)
Papaya ringspot potyvirus (PRSV), watermelon mosaic 2 potyvirus (WMV-2), cucumber mosaic cucumovirus (CMV) and zucchini yellow mosaic potyvirus (ZYMV), singly or in mixed infections, were identified by ELISA in melon ...
Papaya ringspot virus and Cucumber mosaic virus associated with a severe mosaic in melon
(1991-09)
Severe mosaic disease was observed in several melon fields in Costa Rica during the period 1987-1991. Two viruses, papaya ringspot virus (PRSV) and cucumber mosaic virus (CMV) were associated in single and mixed infections ...
Incidence, Distribution, and Association of Spongospora subterranea and Potato mop-top virus in Costa Rica
(2008)
A survey was conducted in 39 potato (Solanum tuberosum) fields in Costa Rica to determine incidence and association of Spongospora subterranean f. sp. subterranea and Potato mop-top pomovirus (PMTV). The fields were located ...
Chayote mosaic, a new disease in Sechium edule caused by a tymovirus
(1997-04)
A sap-transmissible virus was isolated from chayote (Sechium edule) in Costa Rica. Infected plants showed chlorotic spots and rings, and blotchy mosaics, which often coalesced to give a complete mosaic and leaf deformation. ...