Reduced applications of metaldehyde pellets control Arion lusitanicus and Deroceras reticulatum slugs in oilseed rape adjacent to sown wildflower strips in arable farmland at Belp and Zollikofen, Bern, Switerland

  • Published source details Friedli J. & Frank T. (1998) Reduced applications of metaldehyde pellets for reliable control of the slug pests Arion lusitanicus and Deroceras reticulatum in oilseed rape adjacent to sown wildflower strips. Journal of Applied Ecology, 35, 504-513


This study is summarised as evidence for the following.

Action Category

Restrict certain pesticides

Action Link
Farmland Conservation
  1. Restrict certain pesticides

    A replicated, controlled trial of slug (class: Gastropoda) control techniques in autumn 1996 in two oilseed rape Brassica napus arable fields near Bern, Switzerland (Friedli & Frank 1998), found that metaldehyde pellets applied in a 50 cm band alongside wildflower strips provided equivalent crop protection to broadcasting pellets across the entire field. Untreated control plots suffered severe crop damage. Slug sampling showed that Arion lusitanicus caused the majority of damage in plots 1 m from wildflower strips. The treatments trialled were broadcasting pellets across the entire plot at a density of 10 kg/ha, 50 cm of pellets alongside wildflower strips at 20 kg/ha and at 40 kg/ha, and control plots with no metaldehyde applied. Slugs were sampled on eight nights using bait stations.

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