Roundup/generic and 2,4D??

[steveR]

Mid April, I was putting it down to the plants not bounding away, but we had still got a bit of moisture in the ground at the time. The top growth looked well enough! No adjuvant recommended...

The mix I referred to was I understand 4l 360 and a .75l or1l of 2,4D. I think...

Later: Similiar to the recommendation Roy posted in fact.

Following this good thread, I have just been looking at the Kyleo label again, and wondering..... whether the extended dry weather slowed down the rates of degradation of the actives, such that traces were left on both soil and the crops residues, even 3-4 weeks before drilling? Might be a partial reason for the poor emergence and growth of some of the birdy/cover mixes.

 

[Bury the Trash]

Aminopyralid for buttercup.


All seems fine for use in Mexico... where I come from

 

[steveR]

yes it can, & environmental effects ( ie rainfall / heat ) can also affect the plant back period

all of this sort of information is a legal requirement of the labels on all our chemical drums / containers & must always remain on them. It is in theory illegal to decant chemical into another container ( for storage ) that doesn’t have the correct label on it.
It is also has to be available for public access on their websites

Are your chemical drums / labels / laws the same ?
I realise every market / country has different leguslative

Pretty much the same legislation I'd say.

 

[neilo]

Very interesting chart Roy, thank you....

Full whack rate really do have a serious effect on the following crops from the reading of those recommended spray/planting periods.

The higher rate on that chart looks to be for applying similar levels of active as around 3L/ha of Kyleo. Sowing intervals are detailed on the Kyleo label here (60 days for brassicas iirc).

 

[neilo]

Following this good thread, I have just been looking at the Kyleo label again, and wondering..... whether the extended dry weather slowed down the rates of degradation of the actives, such that traces were left on both soil and the crops residues, even 3-4 weeks before drilling? Might be a partial reason for the poor emergence and growth of some of the birdy/cover mixes.

The glyphosate will be degraded pretty quickly, but the hormone weed killers always hang around for a while. If you use hormones in a grass field you can still smell them a fortnight later ime, and I don’t have much of a sense of smell!

 

[neilo]

Aminopyralid for buttercup.


All seems fine for use in Mexico... where I come from

That's the active in Forefront is it not? That kills buttercups in grassland well ime, but plantback periods are crazy long iirc.

 

[ollie989898]

No mixes of that nature are available or licensed in the UK, or weren’t when I looked at it last year. However, that same mix is readily available in Oz/NZ iirc.

Cripes, it's like someone putting round up and pastor together. Must be expensive fast...

 

[ollie989898]

The glyphosate will be degraded pretty quickly, but the hormone weed killers always hang around for a while. If you use hormones in a grass field you can still smell them a fortnight later ime, and I don’t have much of a sense of smell!

Dursban must have been your favourite product then, could smell that for a day or two after use!

 

[ollie989898]

I'd be interested what herbicides you can use in sunflowers, probably just pre-em triflurarlin or something?

 

[neilo]

Cripes, it's like someone putting round up and pastor together. Must be expensive fast...

if it was to clear buttercups and nettles, and on a relatively small area for enviro strips, I would certainly consider it.

Kyleo is daft money and not particularly effective ime.

 

[Brisel]

I'll defend Kyleo here. It has been useful in certain circumstances where glyphosate activity has been slower or there are species like nettle that just aren't controlled by glyphosate alone. Mostly though, a higher dose of glyphosate will speed up the burndown and tackle the bigger plants - I just want to minimise glyphosate use where practical.

 

[Flat 10]

@steveR mugwort is poxy stuff. Glyphosate is not great on it at all. I have hit it fairly hard at 4lit plus wetter though. Use a Monsanto salt , li700 or whatever it’s called that people rave about and the highest legal dose and pay attention to application is all I can suggest.
Or maybe use half rate kyleo and top up glyphosate with some generic? If that’s legal?

 

[Farmer Roy]

I'd be interested what herbicides you can use in sunflowers, probably just pre-em triflurarlin or something?

grass weed control you have a few options in crop, bugger all for broadleaves though

yeah, pre em triflurarlin was popular back in the bare soil / cultivation days, doesn’t work so well in full on zero till & lots of ground cover
Stomp & Dual Gold pre em are about the only options

I found this for your reading pleasure

https://grdc.com.au/__data/assets/pdf_file/0021/370614/GrowNote-Sunflower-North-06-Weeds.pdf

 

[steveR]

@steveR mugwort is poxy stuff. Glyphosate is not great on it at all. I have hit it fairly hard at 4lit plus wetter though. Use a Monsanto salt , li700 or whatever it’s called that people rave about and the highest legal dose and pay attention to application is all I can suggest.
Or maybe use half rate kyleo and top up glyphosate with some generic? If that’s legal?

Kind of pleased that I am not the only one with the absolute joy of trying to control this stuff. Will try the additive this time as welk. Used to use them a liot in the past, but seemed to have faded.

SU type herbicides are the reason it's so prevalant now on the farm.... I think. Older stuff like MCPA/CMPP etc seemed to keep it down far better.

 

[Flat 10]

Kind of pleased that I am not the only one with the absolute joy of trying to control this stuff. Will try the additive this time as welk. Used to use them a liot in the past, but seemed to have faded.

SU type herbicides are the reason it's so prevalant now on the farm.... I think. Older stuff like MCPA/CMPP etc seemed to keep it down far better.

I try to always mix a hormone with SUs but I wouldn't know what the best active for it is. Got fairly good control in WW where a fair few residuals were used and atlantis in the spring.

 

[Brisel]

Mugwort needs max dose metsulfuron in cereals. Not sure what hormones bring to the table for this.

Perhaps try some Shark with the glyphosate as an experiment? £42/litre last time I bought some. 0.33l/ha max dose rate so £13.86/ha plus glyphosate. You'll be £18-20/ha for this all in. Full rate Kyleo is circa £22/ha. As I said earlier, beware of Shark's 1 month drilling window regardless of crop.

 

[steveR]

Mugwort needs max dose metsulfuron in cereals. Not sure what hormones bring to the table for this.

Perhaps try some Shark with the glyphosate as an experiment? £42/litre last time I bought some. 0.33l/ha max dose rate so £13.86/ha plus glyphosate. You'll be £18-20/ha for this all in. Full rate Kyleo is circa £22/ha. As I said earlier, beware of Shark's 1 month drilling window regardless of crop.

My comment on SU and Mugwort is hardly scientific.... and is purely based on seeing less of it in past years than since SU's became more common... Old chemistry seemed to keep it under control better, although I can recall a forest in sugar beet 20 odd years ago, and purchased a weed wiper to control it!

A good control of Mugwort with Shark would have huge appeal as I take land back into management.... The sandy soils are infested. As you say, well worth an experiment on a bottles worth of Shark.


With Shark, that 1 month delay may be a problem this Summer, pre-stewardship drilling, but could well be a very good option next Spring taking out overwintered stewardship before starting again.

 

[steveR]

I try to always mix a hormone with SUs but I wouldn't know what the best active for it is. Got fairly good control in WW where a fair few residuals were used and atlantis in the spring.

My "problem" is that I am not actually growing the cereals here, as it falls into the Contract farming lads remit. ;-)