Can strip cropping reduce pest activity density and damage while increasing yield? A case study of organic cabbage and faba bean

Authors

  • Joonas Mäkinen University of Eastern Finland
  • Sari Himanen Natural Resources Institute Finland (Luke)
  • Pirjo Kivijärvi Natural Resources Institute Finland (Luke)
  • Stéphanie Saussure Natural Resources Institute Finland (Luke)
  • Janne Kaseva Natural Resources Institute Finland (Luke)
  • James Blande University of Eastern Finland

DOI:

https://doi.org/10.23986/afsci.131638

Keywords:

biological pest management, organic farming, sustainable agriculture, vegetable production

Abstract

This study assessed how strip cropping white cabbage (Brassica oleracea) and faba bean (Vicia faba) affects the
activity density of pests – diamondback moth (Plutella xylostella) and flea beetles (Phyllotreta spp.) – and how this affects crop yields. The setup consisted of three 270m2 plots representing monocrops of faba bean and cabbage, and a plot of alternating strips of the two. The setup was established in 2018 and 2019. Activity density of P. xylostella was determined through yellow sticky trapping and Phyllotreta spp. activity density was determined by pitfall trapping. Crop yields were determined at harvest, and foliar damage to cabbage leaves was also assessed. The results showed that strip cropping reduced the activity density of P. xylostella, but no suppression effect was observed for Phyllotreta spp. Average foliar damage to cabbage was higher in the strip crop plot, but in 2018 the yield was also higher. Average faba bean yield was lower in the strip crop plot in both years. Our results indicate potential for cabbage-faba bean strip cropping to reduce the activity density of P. xylostella but not Phyllotreta spp. and to increase cabbage yield when overall pest pressure is moderate, but at the cost of faba bean yield. The case study shows that a Brassica vegetable – legume strip cropping system has potential for pest suppression in northern conditions, but agronomic compatibility of crop plants needs attention to ensure similar or higher productivity than a monocrop system.

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Published

2023-12-14 — Updated on 2023-12-31

Versions

Issue

Vol. 32 No. 4 (2023)

Section

Articles

License

Copyright (c) 2023 Joonas Mäkinen, Sari Himanen, Stéphanie Saussure, Pirjo Kivijärvi, Janne Kaseva, James Blande

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How to Cite

Mäkinen, J., Himanen, S., Kivijärvi, P., Saussure, S., Kaseva, J., & Blande, J. (2023). Can strip cropping reduce pest activity density and damage while increasing yield? A case study of organic cabbage and faba bean. Agricultural and Food Science, 32(4), 219–234. https://doi.org/10.23986/afsci.131638 (Original work published 2023)
Received 2023-07-14
Accepted 2023-12-11
Published 2023-12-31