Ground conditions are still holding up on many farms, making it a good time to target weeds in reseeded grass swards.
Blackgrass can spread rapidly. However, legislation that could help to control it is delayed.
If a farmer cannot explain the presence of uncontrolled weeds, it can indicate an herbicide resistance issue in the field.
A single plant can produce 50,000 to 200,000 seeds over a four- to six-week period, heightening the importance of addressing issues in good time.
Hopefully the bulk of the winter barley will meet the specifications without any pre-harvest treatment.
The weekend will bring mixed weather, with temperatures of up to 20°C on Sunday, according to Met Éireann.