Theory to Field – Living with the enemy



Written by cpm

Download PDF For many growers the writing is on the wall for oilseed rape unless cultural controls can be developed to limit cabbage stem flea beetle damage. CPM discovers how research to find an IPM approach is being speeded up by a massive collaboration across the industry. There’s no quick fix for CSFB so we have to learn how to live with the problem. By Lucy de la Pasture Cabbage stem flea beetle has dominated the news for the past few seasons and the race is on to try and find a solution and keep oilseed rape as a viable break crop in the rotation. In the process it has quickly become clear that there’s a fundamental gap in knowledge about the phenology of the pest – information about the lifecycle and its behaviour that could help find its weak spot. Monitoring shows adult numbers were as high this autumn as in 2019 but damage was generally not as great, reflecting better soil conditions during establishment. Until now the research has been fragmented but recognising that a more collaborative approach may be more efficient, AHDB have instigated a new CSFB project. It aims to plug the gaps in the biology…
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Rejuvenating swards: Which option is best?

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Written by Brian McDonnell

Maintaining grass quality during mid-season grazing is important. Farmers can maintain quality by entering ideal grazing covers of 1,300 – 1,500kg DM/ha, and grazing down to a residual of 4cm every rotation.

If you are now in a situation where cows are not cleaning out paddocks as well as they should be, leading to the development of steamy grass within the sward, here are some options.

Common options for rejuvenating swards include:

  1. Take a silage cut, probably into bales, remove the material and start again with the aftermath...