Kerb weather data

Sprayer in OSR field

Kerb Weather Data

The Kerb Weather Data (KWD) tool is meant to be used as a guide to local weather conditions to aid growers and advisors in making local tactical decisions to optimise their Astrokerb® and Kerb® Flo 500 applications and thus their activity against blackgrass.

For Kerb Weather Data with advanced functionality, download the free Corteva Arable App.
Click on the Google Play or App Store buttons below to download the app.

Alternatively, a basic web version of Kerb Weather Data is available from mid-October to 31 January. Click here to use.




How to use the Kerb Weather Data Tool? 

The Kerb Weather Tool is based on the traffic light system to help farmers optimise their application timings.

If you use Astrokerb or Kerb Flo 500 when the traffic light is on red, soil temperatures may be too high, propyzamide will breakdown quickly and blackgrass control may be compromised.

In forward crops, large canopies may be closing in rows before the Kerb Weather Data tool indicates green for go. Corteva Agriscience trials over many years have shown blackgrass control from propyzamide is not impeded by large crop canopies. 

Benefits of using Kerb Weather Data on the Corteva arable app:

  • Access up-to-date application information for your postcode.
  • Pin point your fields to check if conditions are suitable for propyzamide herbicide applications to winter oilseed rape.
  • Mitigate against run off by checking the slope of your field. 
  • An indication of soil type is also built in.
  • Manually add water boundaries to individual fields.
  • Agronomists can also check postcode information for their farmer clients. 
  • Increased functionality compared to the Kerb Weather Data web tool.


Stewardship matters

In line with best practice guidance from the Voluntary Initiative, growers are advised to implement simple steps which will help ensure autumn and winter-applied products don’t reach watercourses. 

Visit Corteva’s propyzamide stewardship webpage and download our topic sheet for the latest advice and links to useful resources.

Download our latest advice for controlling blackgrass in OSR.