Ovipositional preference and larval-early adult performance of two generalist lacewing predators of aphids in pecans

Mette Kjøbek Petersen, Martha S Hunter

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

We examined the ovipositional preference and larval to early adult performance of two generalist, predatory green lacewing species Chrysoperla comanche (Banks) and Chrysopa nigricornis Burmeister. Both of these predators are abundant in pecan trees (Carya illinoensis (Wagenh) K. Kock) in southern Arizona where two specialist aphids Monellia caryella (Fitch) and Melanocallis caryaefoliae (Davis) are found. Ovipositional preference was tested in a three-way choice experiment with pecan seedlings infested with one of the two aphid species or without aphids. Females of both green lacewing species showed a significant preference for ovipositing on plants bearing aphids, but only C. comanche distinguished between the two aphid species. Both aphid species were suitable for larval development and developmental time was not affected by aphid treatment. C. nigricornis pupae were significantly heavier when larvae were fed only M. caryaefoliae, but no difference in pupal weight was found for C. comanche. The pre-oviposition period was significantly longer for C. nigricornis females that were fed a mixture of the two aphid species during larval development compared with each aphid species alone. However, aphid diet did not affect the number of eggs laid by either species during the first five days of oviposition.

Original languageEnglish (US)
Pages (from-to)101-109
Number of pages9
JournalBiological Control
Volume25
Issue number2
DOIs
StatePublished - 2002

Fingerprint

lacewings
pecans
aphid
generalist
Aphidoidea
predator
predators
Chrysoperla comanche
Melanocallis caryaefoliae
Chrysopidae
larval development
oviposition
Monellia caryella
Chrysopa
Carya illinoinensis
pupa
pupae
seedling
diet
egg

Keywords

  • Black pecan aphid
  • Blackmargined pecan aphid
  • Carya illinoensis
  • Chrysopa nigricornis
  • Chrysoperla comanche
  • Chrysopidae
  • Melanocallis caryaefoliae
  • Monellia caryella
  • Neuroptera

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Ecology, Evolution, Behavior and Systematics

Cite this

Ovipositional preference and larval-early adult performance of two generalist lacewing predators of aphids in pecans. / Petersen, Mette Kjøbek; Hunter, Martha S.

In: Biological Control, Vol. 25, No. 2, 2002, p. 101-109.

Research output: Contribution to journalArticle

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