Praon volucre (Hymenoptera: Braconidae: Aphidiinae), a natural enemy of Macrosiphum euphorbiae (Hemiptera: Aphididae): Life table and intrinsic rate of population increase

J.C. Lins, V.H.P. Bueno, D.B. Silva, M.V. Sampaio, J.C. van Lenteren

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)

Abstract

Life table data of natural enemies are often used to understand their population dynamics and estimate their potential role in the biological control of pests. Macrosiphum euphorbiae (Thomas) (Hemiptera: Aphididae) is an important pest of several crops and its intrinsic rate of population increase (rm) is 0.282 at 22°C. The life table parameters (immature mortality, developmental time, sex ratio of emerging adults, fecundity and longevity) of Praon volucre (Haliday) (Hymenoptera: Braconidae: Aphidiinae) parasitizing M. euphorbiae were estimated in a climatic chamber at 22 ± 1°C, RH 70 ± 10% and 12 h photophase. Immature mortality was 8.2%, developmental time of males and females was 13.9 and 14.4 days, respectively, and the sex ratio was 0.55 (= fraction of females). Parasitoid fecundity was 504 eggs and longevity 11 days. The net rate of reproduction (R0) was 207.5 females and the intrinsic rate of population increase (rm) 0.281 females/female/day. The time for doubling the population (TD) was 2.45 weeks. P. volucre has a population growth rate similar to that of its host M. euphorbiae and might therefore be a good candidate for the biological control of this aphid
Original languageEnglish
Pages (from-to)575-580
JournalEuropean Journal of Entomology
Volume108
Issue number4
DOIs
Publication statusPublished - 2011

Keywords

  • gossypii glover hemiptera
  • testaceipes cresson hymenoptera
  • parasitoid species hymenoptera
  • southeastern europe
  • different temperatures
  • larval competition
  • biological-control
  • host discrimination
  • haliday hymenoptera
  • plant associations

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