How much is aphid population dynamics affected by their natural enemies? An empirical example from Greece

  • Zuzana Štípková Global Change Research Institute, Bělidla 986/4a, 60300 Brno, Czech Republic; Institute for Environmental Studies, Faculty of Science, Charles University, Benátská 2, 12801 Prague, Czech Republic
  • Pavel Kindlmann Global Change Research Institute, Bělidla 986/4a, 60300 Brno, Czech Republic; Institute for Environmental Studies, Faculty of Science, Charles University, Benátská 2, 12801 Prague, Czech Republic
Keywords: Aphids, population dynamics, Harmonia axyridis, colony

Abstract

By monitoring of 50 aphid colonies in 2017 and another 50 colonies in 2018 twice a week, we looked at how the aphid dynamics wasaffected by their natural enemies. This will help us to see, how much the presence of natural enemies shortens the duration of an aphidcolony, which may be one of the causes, why Harmonia axyridis is not very successful in the Mediterranean: the aphid colony may exist for aperiod of time too short in the Mediterranean conditions to enable successful development of H. axyridis.

Published
2019-06-28
Section
Articles