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Determination of viral diseases and insect vectors on weeds adjacent to fields of vegetable crops.

dc.contributoren-US
dc.creatorAPABLAZA, G.
dc.creatorAPABLAZA, J.
dc.creatorREYES, P.
dc.creatorMOYA, E.
dc.date2003-12-31
dc.date.accessioned2020-10-29T14:43:04Z
dc.date.available2020-10-29T14:43:04Z
dc.identifierhttps://rcia.uc.cl/index.php/ijanr/article/view/1312
dc.identifier10.7764/rcia.v30i3.1312
dc.identifier.urihttps://revistaschilenas.uchile.cl/handle/2250/156291
dc.descriptionViral diseases and insect vectors from weeds -growing adjacent to fields of tomato, pepper, melon, watermelon and squash - were determined in theVth and Metropolitan regions of Chile. Two hundred and eleven weed samples showing virussymptoms were analyzed for virus presence by DAS-ELISA and by mechanical inoculation to indicatorplants. The relative importance of weeds, in decreasing order, was: Datura stramonium,Amaranthus spp., Raphanus sativus, Chenopodium album, Galega officinalis, Conium maculatum,Sonchus asper, Malva spp., Urtica urens, Bidens spp., Brassica campestris, Sorghum halepense andSolanum spp.. One to five of the following viruses were found infecting these weeds: alfalfa mosaicvirus (AMV), cucumber mosaic virus (CMV), tomato spotted wilt virus (TSWV), potato virus Y(PVY), tomato mosaic tobamovirus (ToMV) and watermelon mosaic virus - 2 (WMV 2). Syndromesof some of the viruses on weeds and on pepper plants are described. Aphids, thrips and someLepidoptera species were also collected from the weeds under study and identified. Myzus persicae, avector of CMV, WMV2, AMV, and PVY; and Thrips tabaci, a vector of TSWV, were commonly found.This information indicates that weeds growing, next to fields of crops, are inoculum sources of the virusesand hosts of their vectors. Se determinaron las enfermedades virosas einsectos vectores presentes en malezas adyacentesa cultivos de tomate, pimiento, melón, sandíay zapallo, en las Regiones V y Metropolitana deChile. Se analizaron 211 muestras de malezasque presentaban síntomas visibles de virosis,provenientes de 50 potreros, para determinar lapresencia de virus utilizando la prueba serológicaDAS-ELISA y transmisión mecánica a plantasindicadoras así como también a pimiento. Sedeterminó el índice de importancia relativa de las13 especies de malezas que presentaron infección viral. De mayor a menor importancia fueron:Datura stramonium, Amaranthus spp.,Raphanus sativus, Chenopodium album, Galegaofficinalis, Conium maculatum, Sonchus asper,Malva spp., Urtica urens, Bidens spp., Brassicacampestris, Sorghum halepense y Solanum spp..En estas malezas se encontraron uno a cincovirus, siendo los principales: el virus del mosaicode la alfalfa (AMV), el virus del mosaico delpepino (CMV), el virus del marchitamiento manchadodel tomate (TSWV), virus Y de la papa(PVY), virus del mosaico del tomate (ToMV) yel virus del mosaico de la sandia (WMV-2). Sedescribe su sintomatología preidentificatoria queproducen en malezas, plantas indicadoras y plantasde pimiento (Capsicum annum var. grossum).Se colectaron e identificaron afidos, trips y algunoslepidópteros en las mismas especies de malezasen estudio. Myzus persicae es vector deCMV, WMV-2, AMV y PVY; y Thrips tabaci esvector de TSWV, ambos insectos frecuentementeencontrados. Esta información permite afirmarque las malezas adyacentes a estos cultivos hortícolasson fuentes de inóculo de estos virus y desus vectores.en-US
dc.format
dc.languageeng
dc.publisherPontificia Universidad Católica de Chileen-US
dc.relationhttps://rcia.uc.cl/index.php/ijanr/article/view/1312/1035
dc.sourceInternational Journal of Agriculture and Natural Resources; Vol 30, No 3 (2003); 175-186en-US
dc.sourceInternational Journal of Agriculture and Natural Resources; Vol 30, No 3 (2003); 175-186es-ES
dc.source2452-5731
dc.source2452-5731
dc.subjecten-US
dc.subjectAphids, syndroms, thrips, viruses, weeds, Afidos, malezas, trips, virus.en-US
dc.titleDetermination of viral diseases and insect vectors on weeds adjacent to fields of vegetable crops.en-US
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typeen-US
dc.typees-ES


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