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The larva of the bean pod weevil (BPW), Apion godmani Wagner (Coleoptera: Curculionidae), causes serious yield losses in common bean (Phaseolus vulgaris L.) in Mexico and Central America, by consuming the seed as it develops in the immature pod. Resistance to the BPW was identified in bean germpl...


Beebe, Stephen E.Cardona Mejía, CésarDíaz Arrazola, O.Rodríguez, F.Mancia, JEAjquejay, S[Development of common bean (Phaseolus vulgaris L.) lines resistant to the bean pod weevil, Apion godmani Wagner, in Central America]Development of common bean (Phaseolus vulgaris L.) lines resistant to the bean pod weevil, Apion godmani Wagner, in Central America

A reproducible Agrobacterium tumefaciens-mediated genetic transformation method that delivers fertile and morphologically normal transgenic plants was developed for cultivated tepary bean (Phaseolus acutifolius L. Gray). Factors contributing to higher transformation efficiencies include (1) a low...


Zambre, MGoossens, ACardona Mejía, CésarMontagu, M. vanTerryn, NAngenon, G[A reproducible genetic transformation system for cultivated Phaseolus acutifolius (tepary bean) and its use to assess the role of arcelins in resistance to the Mexican bean weevil]A reproducible genetic transformation system for cultivated Phaseolus acutifolius (tepary bean) and its use to assess the role of arcelins in resistance to the Mexican bean weevil

Arcelin, a seed protein discovered in wild Phaseolus vulgaris L. accessions, gives high levels of resistance to the Mexican bean weevil [MBW; Zabrotes subfasciatus (Boheman)]. Six variants of arcelin have been described. In this paper we report on a new variant, arcelin 7, found in six wild bean ...


Acosta Gallegos, Jorge AlbertoQuintero, C.Vargas Daza, JaimeToro Chica, OrlandoTohme, Joseph M.Cardona Mejía, César[A new variant of arcelin in wild common bean Phaseolus vulgaris L., from southern Mexico]A new variant of arcelin in wild common bean Phaseolus vulgaris L., from southern Mexico

In 1993, seed from the EMP series reportedly resistant to leafhoppers (Empoasca Kraemeri Ross & Moore), was obtained from Centro Internacional de Agricultura Tropical (CIAT), South America and planted at Ridgetown, ON. Under severe potato leafhopper, Empoasca fabae (Hams), pressure the selections...


Schaafsma, AWCardona Mejía, CésarKornegay, Julia L.Wylde, AMMichaels, TE[Resistance of common bean lines to the potato leafhopper (Homoptera: Cicadellidae)]Resistance of common bean lines to the potato leafhopper (Homoptera: Cicadellidae)

Host plant resistance in common bean (Phaseolus vulgaris L.) is a promising component in an integrated cropping system for managing thrips (Thrips palmi Karny) infestation. This study was conducted to identify quantitative trait loci (QTLs) for resistance to thrips in common bean, using F5:7 reco...


Frei, AMBlair, Matthew W.Cardona Mejía, CésarBeebe, Stephen E.Gu, HDorn, S.[QTL mapping of resistance to Thrips palmi karny in common bean]QTL mapping of resistance to Thrips palmi karny in common bean

Spittlebugs (Homoptera: Cercopidae) are important pests of forage grasses in the genus Brachiaria (Trin.) Griseb. throughout the neotropics. Results of recurrent selection on resistance to spittlebugs in a synthetic brachiariagrass population are reported. The population was synthesized by recomb...


Miles, John W.Cardona Mejía, CésarSotelo, Guillermo[Recurrent selection in a synthetic brachiariagrass population improves resistance to three spittlebug species]Recurrent selection in a synthetic brachiariagrass population improves resistance to three spittlebug species
Lareo, LRCardona Mejía, CésarPosso G, CEKornegay, Julia L.[Nutritional and toxicological studies with arcelin-containing bean genotypes]Nutritional and toxicological studies with arcelin-containing bean genotypes

La situación de moscas blancas como plagas de cultivos semestrales en el Valle del Cauca se diagnosticó entre septiembre de 1997 y agosto de 1998. Se tomaron 78 muestras biológicas en 15 municipios, las cuales se identificaron por morfología del cuarto ínstar ninfal, electroforesis de ?-? esteras...


Rodríguez Torres, I.V.Cardona Mejía, César[Problemática de Trialeurodes vaporariorum y Bemisia tabaci (Homoptera: Aleyrodidae) como plagas de cultivos semestrales en el Valle del Cauca = Problems related to the incidence of whiteflies as pests of annual crops in the Cauca Valley of Colombia]Problemática de Trialeurodes vaporariorum y Bemisia tabaci (Homoptera: Aleyrodidae) como plagas de cultivos semestrales en el Valle del Cauca = Problems related to the incidence of whiteflies as pests of annual crops in the Cauca Valley of Colombia

Desde la introducción de Thrips palmi Karny a Colombia, éste se convirtió en una de las principales plagas de la habichuela en el Valle del Cauca y es hoy objeto de excesivo uso de insecticidas para su control. Una de las formas de racionalizar el uso de insecticidas es hacer las aplicaciones en ...


Bueno Mondragon, J.M.Cardona Mejía, César[Umbral de acción para Thrips palmi (Thysanoptera: Thripidae) en habichuela en el Valle del Cauca, Colombia = Action threshold for Thrips palmi (Thysanoptera: Thripidae) on snap beans in the Cauca Valley, Colombia]Umbral de acción para Thrips palmi (Thysanoptera: Thripidae) en habichuela en el Valle del Cauca, Colombia = Action threshold for Thrips palmi (Thysanoptera: Thripidae) on snap beans in the Cauca Valley, Colombia

Trialeurodes vaporariorum (Westwood) y los biotipos A y B de Bemisia tabaci (Gennadius) son las moscas blancas más importantes en cultivos semestrales en Colombia y Ecuador. Se estudiaron los niveles de resistencia de adultos de estos insectos a organofosforados, carbamatos y piretroides en 40 lo...


Cardona Mejía, CésarRendon, FGarcía González, J.López Avila, A.Bueno Mondragon, J.M.Ramírez, J.D.[Resistencia a insecticidas en Bemisia tabaci y Trialeurodes vaporariorum (Homoptera: Aleyrodidae) en Colombia y Ecuador = Resistance to insecticides in Bemisia tabaci and Trialeurodes vaporariorum (Homoptera: Aleyrodidae) en Colombia y Ecuador]Resistencia a insecticidas en Bemisia tabaci y Trialeurodes vaporariorum (Homoptera: Aleyrodidae) en Colombia y Ecuador = Resistance to insecticides in Bemisia tabaci and Trialeurodes vaporariorum (Homoptera: Aleyrodidae) en Colombia y Ecuador

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