Potential for intraguild predation and competition among predatory Coccinellidae and Chrysopidae

Mpho W. Phoofolo, John J. Obrycki

Research output: Contribution to journalArticlepeer-review

92 Scopus citations

Abstract

In a laboratory study two coccinellid species, Coleomegilla maculata (DeGeer) and Harmonia axyridis Pallas, completed preimaginal development on lacewing eggs, Chrysoperla carnea Stephens or pea aphids, Acyrthosiphon pisum (Harris) in similar times. Preimaginal survival on C. carnea eggs was similar to survival on A. pisum for all stages of C. maculata and H. axyridis. Coccinellid adults that developed on C. carnea eggs were smaller than adults reared on A. pisum. Coccinella septempunctata L. did not complete preimaginal development on C. carnea eggs. Chrysoperla carnea preimaginal developmental time was approximately 20 days when fed either C. maculata eggs or A. pisum. Chrysoperla carnea fed C. maculata eggs developed into smaller adults, compared to adults reared as larvae on A. pisum, Ostrinia nubilalis (Hubner) eggs, or A. pisum alternated daily with O. nubilalis eggs. C. carnea did not complete preimaginal development on H. axyridis eggs. Cannibalism occurred more frequently between C. carnea third instars than between C. maculata fourth instars. When a C. carnea third instar was paired with a C. maculata fourth instar, more C. maculata were preyed upon by C. carnea, regardless of the herbivorous prey density. In the field these two predator species may negatively affect each other and reduce their suppression of pest densities.

Original languageEnglish
Pages (from-to)47-55
Number of pages9
JournalEntomologia Experimentalis et Applicata
Volume89
Issue number1
DOIs
StatePublished - 1998

Keywords

  • Acyrthosiphon pisum
  • Biological control
  • Chrysoperla carnea
  • Coccinella septempunctata
  • Coleomegilla maculata
  • Harmonia axyridis
  • Ostrinia nubilalis
  • Prey suitability

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Insect Science

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