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Research article - Peer-reviewed, 2021

Attract, reward and disrupt: responses of pests and natural enemies to combinations of habitat manipulation and semiochemicals in organic apple

Palsson, Joakim; Porcel, Mario; Dekker, Teun; Tasin, Marco

Abstract

The widespread use of pesticides along with the simplification of the landscape has had undesirable effects on agroecosystems, such as the loss of biodiversity and the associated ecosystem service biological control. How current production systems can be remodelled to allow for a re-establishment of biological pest control, while preserving productivity, is a major challenge. Here, we tested whether a combination of tools could augment or synergize biological control of insect pests in apple (Malus domestica), comprised of a tortricid pest complex, a geometrid pest complex and the rosy apple aphid. The tools aimed at disrupting mating behaviour of multiple pest species (multispecies mating disruption, "Disrupt", MMD), attracting natural enemies (a blend of herbivory-induced volatiles, "Attract", A), or providing refuge and rewards for a diverse insect community (perennial flower strip, "Reward", R) over a 3-year period. Suction samples were consistently richer in generalist predators but not in parasitoids when multiple tools including MMD + A + R or MMD + A were employed. In addition, lepidopteran pest levels were significantly lower in these plots than in MMD or MMD + R at the end of the 3-year experiment. This was, however, not reflected in survival of artificially established aphid colonies. Our data indicates that multiple, complementary tools can greatly enhance natural enemy level, but also that long-term implementation is needed to fully realize the augmentatory or synergistic potential of complementary components and restore biological control as an ecosystem service of practical relevance.

Keywords

Conservation biological control; Cydia pomonella; Miridae; Multispecies mating disruption; Perennial flower strips; Operophtera brumata

Published in

Journal of Pest Science
2021, volume: 95, number: 2, pages: 619-631
Publisher: SPRINGER HEIDELBERG

Authors' information

Pålsson, Joakim
Swedish University of Agricultural Sciences, Department of Plant Protection Biology
Porcel Vilches, Mario
Swedish University of Agricultural Sciences, Department of Plant Protection Biology
Swedish University of Agricultural Sciences, Department of Plant Protection Biology
Tasin, Marco
Swedish University of Agricultural Sciences, Department of Plant Protection Biology

Sustainable Development Goals

SDG15 Life on land

UKÄ Subject classification

Agricultural Science

Publication Identifiers

DOI: https://doi.org/10.1007/s10340-021-01410-2

URI (permanent link to this page)

https://res.slu.se/id/publ/113154