Demonstrating an integrated pest management strategy in forage- and seed-brassica crops using a collaborative approach


  • Abie Horrocks Foundation for Arable Research
  • Paul A. Horne IPM Technologies
  • Melanie M. Davidson Plant & Food Research



An integrated pest management (IPM) strategy was compared with farmers’ conventional pest management practices on twelve spring- and autumn-sown seed and forage brassica crops. Demonstration trials were conducted in Canterbury from spring 2015 to autumn 2017 by splitting farmers’ paddocks in half and applying the two management approaches side by side. A farmer participatory approach was used, with management decisions based on monitoring pests and biological-control agents. Farmer and adviser training with a focus on monitoring and identification was carried out. Biological-control agents capable of contributing to pest control were identified in all brassica crops. There was a 35% reduction in the number of insecticides applied under IPM compared with conventional management, negligible crop yield differences, and the type of insecticides applied was different. IPM adoption at these farms was high by the end of the 3-year project with 11 of the 12 farmers implementing IPM across 90—100% of their brassica crops. This project was a starting point for an industry-wide change of practice to IPM, which has become more widespread since its completion.


Abrol DP, Shankar U 2012. History, overview and principles of ecologically based pest management. In: Abrol DP, Shnkar U eds. Integrated Pest Management: Principles and Practice. CABI. Pp. 1&ndash;26. <a href=""></a>

Alston DG, Reding ME 1998. Factors influencing adoption and educational outreach of integrated pest management. Journal of Extension 36: 1&ndash;8.

Chambers R, Sunderland K, Wyatt I, Vickerman G 1983. The effects of predator exclusion and caging on cereal aphids in winter wheat. Journal of Applied Ecology 20: 209&ndash;224. <a href=""></a>

de Ruiter J, Wilson D, Maley S, Fletcher A, Fraser T, Scott W, Berryman S, Dumbleton A, Nichol W 2009. Management practices for forage brassicas. Forage Brassica Development Group. Plant &amp; Food Research, Auckland, New Zealand. <a href=""></a>

Devine GJ, Furlong MJ 2007. Insecticide use: contexts and ecological consequences. Agriculture and Human Values 24: 281&ndash;306. <a href=""></a>

Edwards CA, Sunderland K, George K 1979. Studies on polyphagous predators of cereal aphids. Journal of Applied Ecology 16: 811&ndash;823. <a href=""></a>

Herbert Jr D 1995. Integrated pest management systems: back to basics to overcome adoption obstacles. Journal of Agricultural Entomology 12: 203&ndash;210.

Horne P, Page J 2008. Integrated Pest Management for Crops and Pastures, Landlinks Press, CSIRO Publishing, Victoria, Australia.

Horne PA, Page J 2011. Changing to Minimal Reliance on Pesticides. In: Stoytcheva M ed. Pesticides in the Modern World. <a href=""></a>. Pp. 337&ndash;345

Kogan M 1998. Integrated pest management: historical perspectives and contemporary developments. Annual Review of Entomology 43: 243&ndash;270. <a href=""></a>

Lewis WJ, Van Lenteren J, Phatak SC, Tumlinson J 1997. A total system approach to sustainable pest management. Proceedings of the National Academy of Sciences 94: 12243&ndash;12248. <a href=""></a>

Perkins J, Patterson B 1997. Pests, pesticides and the environment: a historical perspective on the prospects for pesticide reduction. In: Pimentel D. ed. Techniques for Reducing Pesticide Use. John Wiley &amp; Sons. Chichester, UK. Pp. 13&ndash;33.

Van der Sluijs J, Amaral-Rogers V, Belzunces L, van Lexmond MB, Bonmatin J-M, Chagnon M, Downs C, Furlan L, Gibbons D, Giorio C 2015. Conclusions of the Worldwide Integrated Assessment on the risks of neonicotinoids and fipronil to biodiversity and ecosystem functioning. Environmental Science and Pollution Research 22: 148&ndash;154. <a href=""></a>

Walker G, Wright P, Cameron P, Fletcher J, Berry N 2009. Information guide for integrated pest management in vegetable brassicas. Plant &amp; Food Research, Auckland, New Zealand.

Walker G, Wright P, Cameron P, Fletcher J, Walker M, Bulman S, Berry N 2016. Pests, natural enemies, diseases and disorders for vegetable brassicas in New Zealand. Plant &amp; Food Research, Auckland, New Zealand. <a href=""></a>




How to Cite

Horrocks, A., Horne, P. A., & Davidson, M. M. (2018). Demonstrating an integrated pest management strategy in forage- and seed-brassica crops using a collaborative approach. New Zealand Plant Protection, 71, 112-120.