Tips to optimise/maximise grass-weed control this autumn

• Use as many cultural methods as possible to reduce grass-weed numbers prior to crop establishment

• Refer to HGCA guide ‘Managing Weeds in Arable Rotations’. Ask your local Bayer contact for a copy or go to www.hgca.com and click on publications

Choose the right pre-emergence herbicide for your grassweed populations

• Know your grass-weed spectrum and resistance status

• Trials have shown that Liberator can provide useful activity against bromes when used as an overall brome control strategy incorporating both chemical and cultural control methods.

• Use Liberator® at 0.6 L/ha as a pre-emergence in any grass-weed situation

Key pre-em. grass-weed spray
(within 48 hours of drilling)

Pre-em. tank-mix options
(can offer extra brome control)

0.6 L/ha

+ Prosulfocarb 1600g a.s./ha
(winter wheat pre-em. only)

+ Pendimethalin up to 1200g a.s./ha

+ Diflufenican (DFF®) up to an additional 60g a.s./ha
• can also give extra BLW control

+ Chlorotoluron (CTU) up to 2100g a.s./ha
• CTU tolerant varieties only
• needs at least 6 weeks before
Atlantis® WG follow up

Apply the pre-emergence herbicide as a true pre-emergence application

• Liberator works best as a true pre-emergence herbicide

• Aim to apply within 48 hours of drilling. DO NOT be tempted to wait for moisture to be present before spraying

• The best pre-emergence performances are from full rates on a fine, firm, consolidated seedbed within 48 hours of drilling