Diluting glyphosate

Jul 24, 2017 49 Replies

Burns off the top growth, but doesn't kill deep rooted weeds. Glyphosate will.

I'm surprised that Monsanto, having spent years marketing ROUNDUP, would risk devaluing the brand by substituting vinegar for glyphosate in a product sold as ROUNDUP AC

I live in an area with a major infestation, and there was an area of my garden covered in it when I moved in. I initially dug it out, but you can't eliminate it this way as roots go too deep. It did a good enough job I could plant grass seed there, and for next 10 years, I pulled up any marestail which popped up in the lawn. It's just dawned on me that I haven't had to do that for a couple of years now.

It still comes up in gaps in a paved path, which I couldn't weed. I step on it to break the coating which the glyphosate otherwise can't get through, and then spray it. Half the time that works, the other half it dies but the plant generates new shoots. Normally with glyphosate, you should spray when the plants are growing fastest, and that's true with marestail too. However, marestail reabsorbs many of the nutrients from the foliage at the end of the season and stores it in the roots. So a good second time to spray is at the end of the season. This also transfers the glyphosate back to the roots, where it will act slowly all winter, helping to kill the plant.

I quite like the Amazon Uk description of it :)

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LOL! Well, it says on the label on the bottle 'unkrautfrei', which might be loosely translated as 'not free from German', which would certainly fit the description!

The way to deal with it is to cover with black plastic sheet, well weighted down. Overlap the boundaries.

Takes around twelve months but little effort involved.

Thanks for all the advice about glyphosate. I have probably broken some more EU Regs re-diluting the glyphosate that I diluted 4:1 before. It should be close to the recommended concentration now.

compost in situ...

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Who cares? EU Regs don't matter any more.

Not me :-) The mission was completed on time and on budget!

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