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Chilean Journal of Agricultural Research
Instituto de Investigaciones Agropecuarias, INIA
ISSN: 0718-5820
EISSN: 0718-5839
Vol. 71, No. 2, 2011, pp. 226-230
Bioline Code: cj11027
Full paper language: English
Document type: Research Article
Document available free of charge

Chilean Journal of Agricultural Research, Vol. 71, No. 2, 2011, pp. 226-230

 en Ovicidal effect of some insecticides on the diamondback moth, Plutella xylostella check for this species in other resources (L. ) (Lepidoptera: Yponomeutidae)
Mahmoudvand, Mohammad; Garjan, Aziz Sheikhi & Abbasipour, Habib

Abstract

The diamondback moth, Plutella xylostella check for this species in other resources (Lepidoptera: Yponomeutidae), is a serious threat to Brassica vegetables in Iran, including Tehran province. The ovicidal effects of different classes of insecticides on P. xylostella were investigated, using three fixed doses (based on commercial formulations). At the lowest concentration (500 mg L-1), the mortality effect of hexaflumuron and pyridalyl was higher than the other insecticides examined. Fipronil, hexaflumuron and spinosad and pyridalyl, however, showed high toxic effects at the median dose (1000 mg L-1). Onthe other hand, at high concentration (2000 mg L-1), all insecticides except lufenuron and indoxacarb (EC formulation) caused more than 85% mortality. Overall, these findings indicate that hexaflumuron, spinosad and fipronil, with low active ingredients and high mortality, could be the best choices for controlling the P. xylostella in the egg stage.

Keywords
diamondback moth, Plutella xylostella, insecticides, ovicidal effect

 
 es Efecto ovicida de algunos insecticidas sobre la polilla del repollo, Plutella xylostella check for this species in other resources (L.) (Lepidoptera:Yponomeutidae).
Mahmoudvand, Mohammad; Garjan, Aziz Sheikhi & Abbasipour, Habib

Resumen

La polilla del repollo, Plutella xylostella check for this species in other resources (L.) (Lepidoptera: Yponomeutidae), es un serio riesgo para especies Brassica en Irán, incluyendo la provincia de Teherán. Se investigó el efecto ovicida de algunos insecticidas pertenecientes a diferentes clases de P. xylostella usando tres dosis (basadas en formulacionescomerciales). A la menor concentración (500 mg L-1) elefecto de mortalidad de hexaflumuron y piridalil fue mayor que las otras dosis examinadas. Fipronil, hexaflumuron, spinosad y piridalil, sin embargo, mostraron fuertes efectos tóxicos a la dosis media (1000 mg L-1). Porotra parte, a alta concentración (2000 mg L-1) todos los insecticidas excepto lufenuron e indoxacarb (formulación EC) causaron más de 85% mortalidad. Finalmente, estos hallazgos indican que hexaflumuron, spinosad y fipronil con baja concentración de ingredientes activos y alta mortalidad pueden ser la mejor elección para controlar P. xylostella en el estado de huevo.

Palabras-clave
polilla del repollo, Plutella xylostella insecticidas, efecto ovicida

 
© Copyright 2010 Chilean Journal of Agricultural Research.
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