Seasonal synchrony of the parasite Perilitus coccinellae and its host Coleomegilla maculata

John J. Obrycki, Maurice J. Tauber

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Dormancy is significant in determining the seasonal interactions between the thelyotokous braconid parasite Perilitus coccinellae and its coccinellid host, Coleomegilla maculata. The parasite's autumnal diapause is maintained by short daylengths and it ends in 50% of the population by the winter solstice. Low temperatures are not required to terminate diapause. The autumnal-hibernal diapause of the host is maintained by short daylengths. By the end of Mar. the photoperiodic control of diapause ends in 50% of the beetles; subsequently temperature and availability of prey determine when oviposition begins. P. coccinellae parasitizes the overwintering C. maculata population twice: during Sept., before the beetles form overwintering aggregations, and again in spring after the beetles disperse.

Original languageEnglish
Pages (from-to)400-405
Number of pages6
JournalEnvironmental Entomology
Volume8
Issue number6
DOIs
StatePublished - Dec 1 1979

Bibliographical note

Funding Information:
We thank Drs. Robert G. Helgesen and John P. Kramer of Cornell University for reading the manuscript.

Publisher Copyright:
© 1979 Entomological Society of America.

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Insect Science

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