Document Detail


Effect of wild flowers on oviposition of Hippodamia variegata (Coleoptera: Coccinellidae) in the laboratory.
MedLine Citation:
PMID:  19133458     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Marginal vegetation in crops is very important for natural enemies and their pest control capacity. The effects of Brassica nigra L. (Brassicaceae), Daucus carota L. (Apiaceae), and Sonchus oleraceous L. (Asteraceae) flowers as supplemental food on the number of eggs laid during 7 d and on the preoviposition time in Hippodamia variegata (Goeze, 1777) were studied in the laboratory under conditions of several densities of Acyrthosiphon pisum (Harris, 1776). The results show the presence of flowers of Brassica and Sonchus increased egg production 1.44X and doubled the pre-oviposition period (2.13X). This suggests that the availability of flowers of Brassica and Sonchus as supplemental foods (pollen and nectar) in the marginal vegetation of crops can serve to improve reproductive performance of H. variegata, specifically under conditions of prey limitation. Thus, the increase in fitness of this predator allows a better response to changes in pest density.
Authors:
Isabel Bertolaccini; Etelvina Núñez-Pérez; Emilio Jorge Tizado
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of economic entomology     Volume:  101     ISSN:  0022-0493     ISO Abbreviation:  J. Econ. Entomol.     Publication Date:  2008 Dec 
Date Detail:
Created Date:  2009-01-12     Completed Date:  2009-02-23     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2985127R     Medline TA:  J Econ Entomol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1792-7     Citation Subset:  IM    
Affiliation:
Departamento de Producción Vegetal, Universidad Nacional del Litoral, Facultad de Ciencias Agrarias. R. P. Kreder, 2805, 3080 Esperanza, Santa Fe, Argentina. isabelb@fca.unl.edu.ar
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MeSH Terms
Descriptor/Qualifier:
Animals
Beetles / physiology*
Daucus carota
Feeding Behavior
Fertility
Flowers*
Mustard Plant
Oviposition*
Population Density
Sonchus
Species Specificity

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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