Sustainable approach against cabbage fly investigated

How do you effectively protect cabbage crops against the cabbage fly without using chemical plant protection products? During the SuscabFly-project (2020-2024) has extensively researched sustainable techniques to control this fly. This project was a collaboration between HOGENT, Inagro, PSKW and Viaverda, testing various alternatives — with promising results.

Research methods and test locations

The research took place at four locations, both organic and conventional plots. Several alternatives for chemical plant protection products were investigated, including:

  • Pneumat (a pneumatic machine mounted on a hoe)
  • Entomopathogenic nematodes (EPN nematodes)
  • Frass in various dosages
  • Cover with nets, including Howicover, Ornata Addu 80100 and Ornata Plus 135
  • Untreated control plots

Nets as an effective solution

The usual plots specifically looked at the effect of covering with nets. The results show that grid solutions play an important role in combating the cabbage fly:

  • Untreated plot with nets: ± 90% marketable coal
  • Nets combined with Frass (different doses): ± 97% to 100% marketable coal

These results confirm that nets are an effective, sustainable solution for cabbage fly control.

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This article is based on:

Dendauw, E., Fleerakkers,S & Van den Eyde, R., Darwich, S. & Temmerman, F. en Dieleman, J.,Vanthournout, B. & Moens, J. (2024, 4 november). Koolvlieg te beheersen meteen combinatie van technieken. Proeftuinnieuws, 34(19), 15-17.