The trial became a study into how to maintain the flexibility needed to adapt to changing situation while achieving desirable control of broadleaved weeds and limiting black-grass seed return.
Watch the video below with Paul Drinkwater and Edward Hagues who discuss the herbicide trial and the lessons it provided.
Black-grass Trials Conclusions
- On mineral soils it is most effective to use 500g of the 1kg ethofumesate allowance pre-emergence to target black-grass
- This means careful consideration should be given to post-em weed control options to stay under this limit.
- Products, such as Betanal maxxPro, can be used that have a lower ethofumesate loading.
- If black-grass population are high the graminicide timing should be prioritised.
- Larger broadleaved weeds may then result from observing the recommended spray intervals.
- By sequencing with the most robust, flexible herbicide control of these can be possible.