Biological parameters and thermal requirements of the parasitoid Praon volucre (Hymenoptera: Braconidae) with Macrosiphum euphorbiae (Hemiptera: Aphididae) as host

B.F. De Conti, V.H.P. Bueno, M.V. Sampaio, J.C. van Lenteren

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

The effect of temperature on the biology of Praon volucre (Haliday, 1833) (Hymenoptera: Braconidae) in Macrosiphum euphorbiae (Thomas, 1878) (Hemiptera: Aphididae) hosts was studied and the thermal requirements of the parasitoid were determined. Experiments were carried out at 16, 19, 22, 25, and 28 ± 1°C with 70 ± 10% relative humidity and 12 h photophase. The developmental time of P. volucre males and females decreased between 16 and 23°C. The highest percentages of aphid parasitism and adult parasitoid emergence were observed at 16, 19, and 22°C. The sex ratio (expressed as % females) decreased between 16 and 23°C. Male and female longevity was high between 19 and 22°C and decreased strongly at 25°C. The lower temperature threshold for P. volucre was 5.17°C and the thermal constant was 243 degrees-days.
Original languageEnglish
Pages (from-to)497-507
JournalBiocontrol Science and Technology
Volume21
Issue number4
DOIs
Publication statusPublished - 2011

Keywords

  • different temperatures
  • aphidiinae
  • brazil
  • ecology
  • quality
  • size
  • time

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