English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/11472
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Benzothiadiazole (BTH) induces local resistance to Bemisia tabaci in tomato plants

AutorNombela, Gloria ; Pascual, S.; Avilés, M.; Guillard, E.; Muñiz, Mariano
Palabras claveBemisia tabaci
BTH
induced resistance
whiteflies
Fecha de publicación2005
EditorEntomological Society of America
CitaciónJournal of Economic Entomology 98(6): 2266-2271
ResumenPlant resistance to the B and Q biotypes of sweetpotato whitefly, Bemisa tabaci (Gennadius), induced by benzo[1,2,3]thiadiazole-7-carbothioic acid-S-methyl ester (BTH or acibenzolar-S-methyl) in tomato "Marmande" plants was evaluated in free-choice and no-choice assays under different conditions. BTH is the active ingredient of the Syngenta plant activator Bion. BTH treatment affected host preference of B. tabaci (B and Q biotypes) adults on plants sprayed with Bion at 0.2 and 0.4 g/liter during the earlier days of free-choice assays. As a consequence, a decrease in the total number of eggs (although female fecundity was not affected) and in the final number of pupae and empty pupal cases was observed. The effect produced by BTH applied at 0.1 g/liter Bion was not significant. In no-choice assays, a reduction of the numbers of first-stage larvae and total individuals and a delay in insect development were observed when local treatment was restricted to one leafet per plant, 5d before B. tabaci (biotype B) infestation. This acquired resistance induced by BTH seemed to be locally expressed because of the differences between treated and nontreated leafets in the same plants, whereas no differences in nontreated leaßets were observed between BTH-treated and control plants.
URIhttp://hdl.handle.net/10261/11472
Aparece en las colecciones: (ICA) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Bemisia BTH JEE.pdf145,96 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.