Kerb-ing the Risk: Propyzamide Stewardship after Winter Bean Drilling

Kerb-ing the Risk: Propyzamide Stewardship after Winter Bean Drilling

From Inside the Pod by PGRO

October 29, 2025 · 18 min · Season 1 · Episode 41

About this episode

The episode discusses the responsible use of propyzamide for grassweed control in winter beans and emphasizes the importance of stewardship to mitigate environmental risks.

In this episode of Inside the Pod from the Processors and Growers Research Organisation (PGRO), host Ben Pike is joined by Dr. Becky Howard from PGRO and Joe Martin from Corteva Agriscience to discuss responsible use of propyzamide, the active ingredient in Kerb® and Kerb® Flo, a key herbicide for grassweed control in winter beans. Becky and Joe explain why propyzamide remains a crucial tool for managing resistant blackgrass and other grass and broadleaf weeds, thanks to its unique mode of action and effectiveness in cooler, moist soils. However, they also stress that increasing environmental scrutiny, particularly around water contamination risks, means good stewardship is essential to keep this vital active available. The conversation covers best practice for application timing (typically late October to December), field selection, and measures to reduce runoff, such as avoiding waterlogged soils, minimizing compaction, and maintaining buffer zones near watercourses. Joe highlights Corteva’s stewardship initiatives, including collaboration with water companies and grower support through the Kerb Weather Data app and online CPD training resources. Listeners are encouraged to…

People in this episode

Host: Ben Pike

Guests: Dr. Becky Howard, Joe Martin

Topics covered

  • propyzamide stewardship
  • herbicide application
  • grassweed control
  • environmental impact
  • agricultural best practices

Keywords

  • propyzamide
  • grassweed control
  • winter beans
  • herbicide
  • environmental stewardship
  • application timing
  • Corteva
  • buffer zones
  • water contamination

Mentioned in this episode

Organizations: Processors and Growers Research Organisation, Corteva Agriscience

Products: Kerb®, Kerb® Flo

Places: UK

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