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Biological Control
Volume 9, Issue 3, July 1997, Pages 167-172
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Copyright © 1997 Academic Press. All rights reserved.

Regular Article

Comparative Prey Suitability ofOstrinia nubilalisEggs andAcyrthosiphon pisumforColeomegilla maculata*1


This article is not included in your organization's subscription. However, you may be able to access this article under your organization's agreement with Elsevier.

Mpho W. Phoofolo and John J. Obrycki

Department of Entomology, Iowa State University, Ames, Iowa, 50011, f1

Received 15 January 1997; 
accepted 21 March 1997. ;
Available online 19 April 2002.


The effects ofOstrinia nubilalis(Hübner) (Lepidoptera: Pyralidae) eggs andAcyrthosiphon pisum(Harris) (Homoptera: Aphididae), when provided as single prey species and in combination, on life history characteristics ofColeomegilla maculataDeGeer (Coleoptera: Coccinellidae) larvae and adults were quantified. Preimaginal development was not influenced by the larval prey regime; development at 26 ± 1°C was completed in approximately 13.5 days onO. nubilaliseggs,A. pisum,orA. pisumalternated daily withO. nubilaliseggs. The resulting adults weighed 13.0, 10.7, and 12.5 mg when reared onO. nubilaliseggs,A. pisum,andA. pisumalternated daily withO. nubilaliseggs, respectively. Eighteen percent of the individuals died when reared onA. pisum,28% died when reared onO. nubilaliseggs, and 22% died when fedA. pisumalternated daily withO. nubilaliseggs. Seven adult diet combinations, based on diet regimes of larvae and adults, did not cause significant differences in preoviposition period, interoviposition period, and the number of days on which eggs were laid. Total fecundity was influenced both by larval and adult diet. The diet that resulted in highly fecund females wasA. pisumalternated daily withO. nubilaliseggs for larvae andO. nubilaliseggs for adults. FemaleC. maculatafedO. nubilaliseggs had the highest intrinsic rate of increase and net reproductive rate.

Author Keywords: Coccinellidae; Coleomegilla maculata; Ostrinia nubilalis; Acyrthosiphon pisum; life history traits; predator; biological control

*1 C. B. HuffakerR. L. Rabb, Eds.

f1 E-mail:

Biological Control
Volume 9, Issue 3, July 1997, Pages 167-172
Result list | previous < 112 of 166 > next 
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