Pålsson, Joakim
- Department of Plant Protection Biology, Swedish University of Agricultural Sciences
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
SLU Authors
Porcel Vilches, Mario
- Department of Plant Protection Biology, Swedish University of Agricultural Sciences
- Department of Plant Protection Biology, Swedish University of Agricultural Sciences
Dekker, Teun
- Department of Plant Protection Biology, Swedish University of Agricultural Sciences
- Department of Plant Protection Biology, Swedish University of Agricultural Sciences
Tasin, Marco
- Department of Plant Protection Biology, Swedish University of Agricultural Sciences
- Department of Plant Protection Biology, Swedish University of Agricultural Sciences
Associated SLU-program
SLU Plant Protection Network
Global goals (SDG)
UKÄ Subject classification
Agricultural Science
Publication identifier
- DOI: https://doi.org/10.1007/s10340-021-01410-2
Permanent link to this page (URI)
https://res.slu.se/id/publ/113154