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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

Huit virus ont ete signrues sur Ie niebe en Afrique. Les virus du niebe sont decrits pour les basses terres hum ides et subhumides de I'Afrique occidentale ainsi que pour les wnes ecologiques d'rutitude moyenne en Mrique orientale et australe. Chaque fois que les installations sont limitees et qu...


Thottappilly, G.Rossel, H.[Les maladies virales du niebe en Afrique: Guide de recherche de lIita, No. 53]Les maladies virales du niebe en Afrique: Guide de recherche de lIita, No. 53

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

Pham Thanh LongNguyen Tien ThangHung Nguyen-VietBui Nghia VuongCan Xuan MinhLundkvist, A.Lindahl, Johanna F.[Seropositivity against flaviviruses among pigs in Hanoi]Seropositivity against flaviviruses among pigs in Hanoi

El fríjol común, Phaseolus vulgaris L., es una leguminosa susceptible a un gran número de virus vegetales. Las enfermedades virales del frijol que más atención han recibido por parte de los mejoradores, han sido el mosaico común, la necrosis sistémica o "raíz negra" y el mosaico dorado. En la Amé...


Morales, Francisco José[Mejoramiento genético del frijol común por resistencia a las principales enfermedades virales en la América Latina]Mejoramiento genético del frijol común por resistencia a las principales enfermedades virales en la América Latina

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
International Center for Tropical Agriculture[Pest-and-disease management components and strategies developed for key crops: Output 2]Pest-and-disease management components and strategies developed for key crops: Output 2

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