SciELO - Scientific Electronic Library Online

 
vol.72 número4Evaluación de la resistencia de genotipos de soya a Bemisia tabaci (Genn.) biotipo B: Antixenosis y antibiosisEfectos no directos de resistencia del cultivar de soya IAC-24 sobre Podisus nigrispinus (Heteroptera: Pentatomidae) índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

Compartir


Chilean journal of agricultural research

versión On-line ISSN 0718-5839

Resumen

DOMINGUES DE OLIVEIRA, Sharrine Omari; FARIA BARBOSA, Wagner; VILCA MALQUI, Karina Soledad  y  CARVALHO GUEDES, Raul Narciso. Mating behavior of the predator Podisus nigrispinus (Heteroptera: Pentatomidae) under exposure to neem: Comportamiento de apareamiento del depredador Podisus nigrispinus (Heteroptera: Pentatomidae) expuesto al neem. Chilean J. Agric. Res. [online]. 2012, vol.72, n.4, pp.523-527. ISSN 0718-5839.  http://dx.doi.org/10.4067/S0718-58392012000400010.

The preservation of natural enemies is one of the basic foundations for integrated pest management. Botanical insecticides have shown low impact on beneficial arthropods in relation to survival. Insecticides studies usually focus on the direct physiological effects of insecticides, whereas relatively little attention is placed on the behavioral response to exposure. A study was conducted to evaluate the effect of the botanical insecticide neem (Azadirachta indica A. Juss.; Meliaceae) on the mating behavior of the predatory stinkbug Podisus nigrispinus (Heteroptera: Pentatomidae). Unmated 5 to 7 d-old adults, separate by sex, were exposed to azadirachtin per contact on the treated surface. The treatments were composed for: untreated male and female; untreated male and treated female; treated male and untreated female; and treated male and female. Azadirachtin affected the duration of first mating (Wilcoxon test, χ2 = 13.38, df = 3, p = 0.004), which resulted in a higher effective average time of mating (EATM50) for treatment whose only female was treated with azadirachtin. This finding points to a sublethal effect of azadirachtin on mating behavior of P. nigrispinus that may compromise its reproduction.

Palabras clave : Azadirachtin; Azadirachta indica; biological insecticide; natural enemy.

        · resumen en Español     · texto en Inglés     · Inglés ( pdf )

 

Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons