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Olaya, NubiaBetancourt, MonicaCuéllar, Wilmer J.Pappu, Hanu R.[First Report of natural infection of tomato (Solanum lycopersicum L.) and bell pepper (Capsicum annuum) by Alstroemeria necrotic streak virus in Colombia]First Report of natural infection of tomato (Solanum lycopersicum L.) and bell pepper (Capsicum annuum) by Alstroemeria necrotic streak virus in Colombia

Many isolates of cocoa swollen shoot virus (CSSV) have been found in Ghana. Relationships between these isolates have been based on symptom expression and limited serological information. This paper reports on the serological relationships between 44 accessions of CSSV using the virobacterial agg...


Hughes, J.Adomako, D.Ollennu, L.A.[Evidence from the virobacterial agglutination test for the existence of eight serogroups of cocoa swollen shoot virus]Evidence from the virobacterial agglutination test for the existence of eight serogroups of cocoa swollen shoot virus

Surveys of the incidence of African cassava mosaic disease (ACMD) and its whitefly vector, Bernisiu tabaci, were made at three-month intervals in 1992 and 1993 along two South-North transects. One was in central and the other in eastern Uganda. ACMD incidence was high within the northern localiti...


Legg, J.P.Ogwal, S.[Changes in the incidence of African cassava mosaic geminivirus and the abundance of its whitefly vector along southnorth transects in Uganda]Changes in the incidence of African cassava mosaic geminivirus and the abundance of its whitefly vector along southnorth transects in Uganda

The survivorship, fecundity and development time (egg to adult) of Cicadulina storeyi China, C. arachidis China and C. ghaurii Dabrowski were studied at three constant temperatures (20, 25 and 30 .C). Additional tests were conducted to descriptionbe maize streak virus (MSV) transmission by C. ara...


Asanzi, M.C.Bosque Pérez, N.A.Nault, L.R.Gordon, D.T.Thottappilly, G.[Biology of Cicadulina species (Homoptera: Cicadellidae) and transmission of maize streak virus]Biology of Cicadulina species (Homoptera: Cicadellidae) and transmission of maize streak virus

Kreuze, J.F.Koening, RSouza, J. deVetten, H.J.Muller, GFlores, B.Ziebell, HCuéllar, Wilmer J.[The complete genome sequences of a Peruvian and a Colombian isolate of Andean potato latent virus and partial sequences of further isolates suggest the existence of two distinct potato-infecting tymovirus species]The complete genome sequences of a Peruvian and a Colombian isolate of Andean potato latent virus and partial sequences of further isolates suggest the existence of two distinct potato-infecting tymovirus species

Background Production of cassava (Manihot esculenta Crantz), a food security crop in sub-Saharan Africa, is threatened by the spread of cassava brown streak disease (CBSD) which manifests in part as a corky necrosis in the storage root. It is caused by either of two virus species, Cassava brown s...


Kaweesi, T.Kawuki, R.Kyaligonza, V.Baguma, Yona K.Tusiime, GeoffreyFerguson, M.[Field evaluation of selected cassava genotypes for cassava brown streak disease based on symptom expression and virus load]Field evaluation of selected cassava genotypes for cassava brown streak disease based on symptom expression and virus load

Etiology of "amachamiento" "(sterility") in Phaseolus vulgaris in Costa Rica. In the last decade the problem known as "amachamiento" ("sterility") has been increasing in the main bean production regions of Costa Rica. This problem consists of a reduction of 24% - 50% in the production of affected...


Morales, Francisco JoséAraya Fernández, CMHernández, J.C.Arroyave, José A.Cuervo Ibáñez, MaritzaVelasco, Ana CeciliaCastaño J., Mauricio[Etiología del "amachamiento" del frijol común en Costa Rica]Etiología del "amachamiento" del frijol común en Costa Rica

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