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Chilean Journal of Agricultural Research
Instituto de Investigaciones Agropecuarias, INIA
ISSN: 0718-5820
EISSN: 0718-5839
Vol. 69, No. 2, 2009, pp. 292-298
Bioline Code: cj09034
Full paper language: English
Document type: Research Article
Document available free of charge

Chilean Journal of Agricultural Research, Vol. 69, No. 2, 2009, pp. 292-298

 en Life, seasonal cycles, and population fluctuation of Hippodamia variegata check for this species in other resources (goeze) (coleoptera: coccinellidae), in the central plain of la araucanía region, chile
Rebolledo, Roman R.; Sheriff, Johnny J.; Parra, Leonardo L. & Aguilera, Alfonso A.


This study was performed on an alfalfa crop located on the central plain of La Araucanía Region, Chile and in the Laboratorio de Entomología Aplicada de la Facultad de Ciencias Agropecuarias y Forestales at the Universidad de La Frontera. Certain aspects of the biology of Hippodamia variegata check for this species in other resources (Goeze) (Coleoptera: Coccinellidae) were determined, more specifically in relation to its life cycle, seasonality, and population fluctuation. It was established that this coccinellid requires 190.32 ± 10.2 degree-days to complete a generation under laboratory conditions. This information along with the field samplings made it possible to calculate that H . variegata completes four generations per season in the alfalfa crop ( Medicago sativa check for this species in other resources L.).

life cycle, seasonal cycle, population fluctuation, Hippodamia variegata , Medicago sativa .

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