Cranesbill in winter barley

[Tractor Boy]

I’ve got a problem with large cranesbill in winter barley. The barley was direct drilled into wheat stubble which had received 4L/ha glyphosate a few days prior to drilling. Unfortunately it would appear that large cranesbill won’t die from glyphosate.
I’ve now got dinner plate sized cranesbill in my winter barley. I have ordered some Zypar (arylex) although I’ve never used it, as it appears this will be my best bet but do I go with full rate or is it better at a lower rate mixed with Ally Max or something else?
Also is it best to wait until March?

 

[Brisel]

Arylex will do large cranesbill ok. Control is better if you wait but the weeds are getting bigger all the time. Zypar is not like a hormone where temperature is much more important, so I'd advise that you speak to your agronomist rather than rely on a brief post on the internet!

Cranesbill control from glyphosate alone is not great. I have used Kyleo for better control but it needs to be left for a week after application before drilling and keep rates up. Some adjuvants like Validate will boost glyphosate efficacy and help condition the water (important in hard water areas where cation lockup can negate up to 1/3 of glyphosate).

 

[Tractor Boy]

Arylex will do large cranesbill ok. Control is better if you wait but the weeds are getting bigger all the time. Zypar is not like a hormone where temperature is much more important, so I'd advise that you speak to your agronomist rather than rely on a brief post on the internet!

Cranesbill control from glyphosate alone is not great. I have used Kyleo for better control but it needs to be left for a week after application before drilling and keep rates up. Some adjuvants like Validate will boost glyphosate efficacy and help condition the water (important in hard water areas where cation lockup can negate up to 1/3 of glyphosate).

Hi thanks for the quick reply.
I am my own agronomist so unfortunately haven’t got anyone to speak to. I was a commercial agronomist albeit 20 years ago and have kept up to date reasonably well but as I don’t advise any more I have no experience with new to me products like arylex. Also I’ve never really had a problem with cranesbill until this last year of direct drilling my lighter land.
The glyphosate did actually have validate with it but perhaps Kyleo will be the way to go.

 

[deleted user 837354]

Cranesbill is making a resurgence in some areas because it's a bit of a species hole in the existing chemistry. I would prefer to apply arylex when conditions were a bit growier if it was me. I know Dow used to say it was less temperature sensitive but I'm old fashioned like that.

The existing formulations of glyposate have nothing like the punch they had back when tallow amine was in them. Less margin for error and less tolerant of abuse these days. Kyleo with adjuvant always did a good job for me but I used to tell people to leave it to work. Problem weeds need a patient approach.

 

[Brisel]

It seems like extortion to charge a premium for Kyleo given how cheap & compatible its ingredients are, but Nufarm know how the law works. The good old days where you were only governed by the statutory box on the front of the label are over. Now, the whole label is the law & you can't legally just chuck in what you like unless it specifically said no. Now, it's "you can only do what is listed."

Ollie is right. Cranesbill is one of the weeds that slips between gaps in mainstream herbicides like groundsel and willow herb. Tallow amine was a very good glyphosate partner, but it was found to be a carcinogen.

If you want to stay up to date, I'd recommend membership of an organisation like NIAB TAG or having a current full time agronomist on a £/hour basis for technical questions like this, if you don't trust dodgy folk like me!

 

[czechmate]

Is 4lts of glyphosate a normal stubble rate for you? Or you upped it for the cranesbill?
Just seems quite strong to me

 

[Tractor Boy]

Is 4lts of glyphosate a normal stubble rate for you? Or you upped it for the cranesbill?
Just seems quite strange to me

There were patches of creeping thistle in areas of the field as well so I was going with 4L/ha plus validate for those. It’s a block of light land where last years wheat drought Ed off in gravel seams and this cranesbill took hold under the canopy of the wheat along with some mallow. By September they were all getting large so I sprayed and then the field was direct drilled with a dale drill.
The thistles and mallow and all other broad leaves and grass weeds have died but the cranesbill doesn’t even look touched.

 

[czechmate]

Sorry “strong”, not “strange”!

 

[teslacoils]

Cranesbill and rosebay willowherb laugh at low rate glyphisate.

 

[bobk]

Bi play will do it in w/b , had it here .

 

[czechmate]

Bi play will do it in w/b , had it here .

What is Bi play, please?

 

[bobk]

What is Bi play, please?

Similar to Ally

 

[teslacoils]

Metsulfuron plus tribenuron. Ally max with different ratios.

 

[Hampton]

Hi thanks for the quick reply.
I am my own agronomist so unfortunately haven’t got anyone to speak to. I was a commercial agronomist albeit 20 years ago and have kept up to date reasonably well but as I don’t advise any more I have no experience with new to me products like arylex. Also I’ve never really had a problem with cranesbill until this last year of direct drilling my lighter land.
The glyphosate did actually have validate with it but perhaps Kyleo will be the way to go.

Arylex is good.
It’s probably my go to herbicide in winter barley now

 

[deleted user 837354]

Arylex is good.
It’s probably my go to herbicide in winter barley now

From memory you can add ally to arylex if you so desire? Careful on the product used though as at least one of the arylex containing products also contains flourasulam so you would end up with 2 ALS inhibitors in the tank at once.

 

[Corteva Technical]

Hi thanks for the quick reply.
I am my own agronomist so unfortunately haven’t got anyone to speak to. I was a commercial agronomist albeit 20 years ago and have kept up to date reasonably well but as I don’t advise any more I have no experience with new to me products like arylex. Also I’ve never really had a problem with cranesbill until this last year of direct drilling my lighter land.
The glyphosate did actually have validate with it but perhaps Kyleo will be the way to go.

Zypar at 1l/ha will control cranesbill up to 10cm, the addition of an SU such as Ally Max SX will boost control. Whilst Zypar is less affected than some other herbicides by cooler temperatures, control is always more effective when you have active growth. If you require any further information, then do not hesitate to contact the Corteva Agriscience hotline on 0800 689 8899 or [email protected]