Disrupting ant-aphid relationships to improve biological control of pests

PhD defense, Monday, 22 October 2018. Natalia E.L. Madsen.

2018.10.22 | Olivia Elsebeth Belling-Nami

Natalia E.L. Madsen.

During her studies, Natalia E.L. Madsen investigated how to use sugar solutions to promote sustainable pest control in commercial orchards. Aphids are an important pest in many plant species of economic importance and ants often interfere with their control by protecting aphid populations from predators and parasitoids in exchange for honeydew. The new research findings contribute to the understanding of how to develop a sugar-based solution capable of manipulating the relationship between ants and aphids, thus facilitating a more successful biological control of pests and reducing the need for pesticide use.


The PhD degree was completed at the Department of Bioscience (Section: Plant and Insect Ecology), Science and Technology, Aarhus University.

This résumé was prepared by the PhD student.

Time: Monday, 22 October 2018 at 13:00.

Place: Room D2.04, Department of Bioscience, Vejlsøvej 25, 8600 Silkeborg.

Title of PhD thesis: Manipulation of ant-aphid mutualism for sweet and sustainable pest control

Contact information: Natalia E.L. Madsen, e-mail:nel@bios.au.dk, tel.: +45 87 15 90 47

Members of the assessment committee:
Marco Tasin, PhD, Department of Plant Protection Biology, Swedish University of Agricultural Sciences, Sweden
David Richard Nash, PhD, Department of Biology, University of Copenhagen, Denmark
Annette Baattrup-Pedersen, PhD (chair), Department of Bioscience, Aarhus University

Main supervisor: Joachim Offenberg, Department of Bioscience, Aarhus University.

Language: The PhD dissertation will be defended in English.

The defense is public.
The PhD thesis is available for reading at the Graduate School of Science and Technology/GSST, Ny Munkegade 120, building 1520, rooms 128-134, 8000 Aarhus C.

PhD defence
Comments on content: 
Olivia Elsebeth Belling-Nami

Revised 22.10.2018