Horse's Tails

[Norm]

Don't know if you've heard of this stuff, but there's a weed killer on the market called Kibosh which systemically kills Horse/Mares Tail

[Two_Sheds]

There's a report about it here, if anyone wants to plough through it

The main thing I notice is that it doesn't have any effect on roots, only on leaves

[Norm]

The trial results do suggest that systemic action is limited, but they may have tweaked it a bit in the last 20 years

[Two_Sheds]

How can it be tweaked? It's still glufosinate-ammonium: "KIBOSH is a non-selective contact herbicide that can be used to control annual and perennial grass and broad-leaved weeds"
http://www.progreen.co.uk/Pr0gr33n/i...rmation(1).pdf

I don't think it's meant to be used on horsetail at all

[Norm]

No idea, I'm not a biochemist, but the info from the company selling it claims roots are killed along with the top, so unless they want to flout the Trades Descriptions Act and suffer the consequences, it must be more effective than it used to be.

[snakeshack]

unfortunately I was a biochemist,the report says much about breakdown of the product and it's metabolites but very little about its efficacy on horsetail.it states tht there is limited systemic effect through the leaves but not the roots,this suggests that it is absorbed through the leaves and acts to an extent on the roots,but if you have removed the top growth it will not affect the plant at all.Not the magic bullet we were all hoping for to devastate the horsetail plague spreading uncontrollably across my plot I fear,but may be worth a go in the spring when the "rockets" start launching