Blw control in spring barley

Bigjon44

Member
Evening all
Whats the best option for mayweed and ivy speedwell control in spring barley. Conditions very dry and barley stressed!!
 

Brisel

Member
NFFN Member
Location
North Yorkshire
Metsulfuron methyl or CMPP. How big are the weeds? Anything else to consider in the tank mix? CMPP needs warmth and both need care on a stressed plant. I would guess that the weed is stressed too. Neither weed is a big problem to control, so be prepared to wait until conditions improve.
 

Ugo79

Member
Location
The Shire
Metsulfuron methyl or CMPP. How big are the weeds? Anything else to consider in the tank mix? CMPP needs warmth and both need care on a stressed plant. I would guess that the weed is stressed too. Neither weed is a big problem to control, so be prepared to wait until conditions improve.
I don't think metsulfuron is up to the job on Ivy Leaved Speedwell (ILS). Most straight metsulfuron products are rated as 'resistant' for ILS (<65% control).

If the ILS populations are particularly high and you are concerned then use an SU product with thifensulfuron in the formulation e.g. Concert SX. These mixes get you into 'moderately susceptible' territory which should be enough given the rainfall and good growing conditions for the barley which should swamp out suppressed weeds like ILS.
 

puma power

Member
Mixed Farmer
@JLLM Corn Marigold is a pain in Pembs! 3/4 rate Ally and 3/4 rate Starene XL do a pretty good job. PDM in the Pre-em gives them a good head ache to start.
 

CHAP Webinar - Innovative tools to overcome the challenges of Regen Ag

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Applying principles of regen ag can incur a range of on-farm challenges. Learn how innovative tools & machinery can help with these hurdles.

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