Glyphosate on stubble l/ha

[Shutesy]

Making your own is illegal according to the label for 2,4 D. Kyleo is the best option here but there's a drilling interval & I'd be wary of using it before DD osr. Shark will do it too but there's a 1 month drilling interval.

The small print: Always read the labels. Advice on the internet is worth what you paid for it! Best to consult an agronomist directly, even though there are lots of agronomists and BASIS trained farmers in here.

As well as being illegal by the 2-4D label I'm pretty sure that it has to be a special formulation of either 2-4D or Glyphosate or both to get them to mix properly, hence the creation of Kyleo. Straight glypho and straight 2-4D don't mix to well from what I read somewhere.

 

[SF1]

As well as being illegal by the 2-4D label I'm pretty sure that it has to be a special formulation of either 2-4D or Glyphosate or both to get them to mix properly, hence the creation of Kyleo. Straight glypho and straight 2-4D don't mix to well from what I read somewhere.

But CMPP does

 

[Brisel]

But CMPP does

Agreed. Back in the good old days when the only label limit was what the statutory box said we used that cocktail for knocking off big volunteer osr canopies before drilling wheat.

 

[Clive]

<£40/20L? That would be nice. Nearer £55-60 here, but admittedly in (much) smaller quantities.

you will be able to buy it on Farm Marketplace next week at £36-37 ish

 

[SilliamWhale]

As well as being illegal by the 2-4D label I'm pretty sure that it has to be a special formulation of either 2-4D or Glyphosate or both to get them to mix properly, hence the creation of Kyleo. Straight glypho and straight 2-4D don't mix to well from what I read somewhere.

As well as being illegal by the 2-4D label I'm pretty sure that it has to be a special formulation of either 2-4D or Glyphosate or both to get them to mix properly, hence the creation of Kyleo. Straight glypho and straight 2-4D don't mix to well from what I read somewhere.

Yanks dont seem to have a problem mixing it

 

[e3120]

<£40/20L? That would be nice. Nearer £55-60 here, but admittedly in (much) smaller quantities.

As well as the marketplace option, I was quoted £39 for 'livestock farmer' quantities on Yagro last week.

 

[ollie989898]

The Americans are making tank mixes with all kinds of stuff including glyphosate. It is a bit mental in my book but if that is your sole means of weed control you are probably looking to get every last penny out of it.

I am not about to go telling people to spray diesel around the countryside, I have no doubt it seems to curl plants over very rapidly because of the de-waxing effect you see in many hydrocarbon type products. But this is not a reliable indicator of actual efficacy.

All these weird and wonderful tank mixtures are all well and good right up until you have a following crop issue. Whatever you, don't play daft games with any of the SUs- they are very potent in tiny quantities and some crops are very sensitive to them, the smallest amount left in the soil can act as a potent residual to tiny crop seedlings. Putting MSM in the tank, for example, when spraying stubbles, or spraying grass off could have very interesting consequences later on. The 2,4D as used in Kyleo for example, is far far safer because like most of the phenoxies it is effective only at higher doses, but I would still be very hesitant using it with beans or OSR in the scheme of things if it was me.

 

[warksfarmer]

Surely you should use full dose to avoid resistance as I'm hearing 'stories' of BG resistant to glyphosate in the UK.

 

[Brisel]

Blackgrass sprayed during flowering or rapid stem extension doesn't take glyphosate in well. Nor will 1 litre/ha sprayed on a hot windy day to 1-2 leaf seedlings with coarse nozzles.

 

[ollie989898]

I don't use full rate glyphosate in all situations because I am aware of the wider picture in each situation where I consider using it. It is the same of many other herbicides. The product used and the dose is matched to the weed burden/size and takes also into account of the following cropping, field history, intended outcome etc etc etc.

Where resistance to glyphosate has occurred as we have seen, it is due largely to the fact that they were using virtually no water volume and a rate of use that was barely a tenth of that ever used in the UK, and I suspected as much because I have read about what exactly is done to crops in Australia and North America in a variety of places. All of it would make anyone with any knowledge of European agronomy foam at the mouth. However it was probably extremely cheap for them, at the time they chose to do it.

Now we are seeing this process begin to bear fruit. In a panic, you are now seeing eye-wateringly extreme tank mixes being thrown into action in an attempt to hold it at bay. Throw in glyphosate tolerant crops, which is only going to encourage people to abuse the stuff even further, and you have quite a party to attend. Glufosinate ammonium tolerant crops, would have been a workable idea but found no favour because it is about 4 times the cost.

As far as I am aware there are no studies that have been done to even begin to determine how long these kinds of genetics might remain in play. Because the ability to tolerate glyphosate carries a genetic penalty, logically it should be self-limiting where no glyphosate is ever used and it will disappear through natural selection over time, even the naturally occurring versions. Just don't ask me to tell you a time frame.

There are of course a number of other near total herbicides one could use for various reasons but they will not be considered because of cost reasons. I do think there will be increased pressure to move toward combination products. Dupont already have souped up versions of MSM that contain extra goodies. Given that they are now paired with Dow, who also have a new range of very fancy chemistry from a totally novel branch of chemistry, it is feasible that you will be obliged in time to use co-products in an attempt to halt resistance. I know that some agronomists have favoured tank mixes with basically duplicate some of this. I have only resorted to it though where there is a serious weed issue, you do have to consider tank mix compatibility and crop safety mind you.

Of course the beauty of old fashioned hormone chemistry is that they are decades old and so quite cheap, and they use mimic naturally occurring plant chemistry and so developing total resistance to them would be unlikely.