Most potent weedkiller out of these two please

[*oh*no*i*just*wet*my*espadrilles*]

Hi

We have a buddleia growing into our house masonry, causing damage, and it must be killed off.

I have 2 different packs of strong weedkiller here, but can't work out which is most potent, as they are g/l and g/kg.

Can someone advise please?

A) 120g/l glyphosate and 0.33 pyraflufen-ethyl.

B) 630g/kg glyphosate

Thanks!

[peteryola]

If we take the density as being very similar to water, we can make a rough comparison.

One litre of water weighs 1kg.

It therefore follows that B has 5.25 times as much glyphosphate in it as A, but we also have to take into account that A contains a second chemical.  A quick online search finds very few matches between that and buddleia, whereas glyphosphate yields lots of results on the same search.

I would therefore suggest that B is the better product for this job on both grounds.

[*oh*no*i*just*wet*my*espadrilles*]

Thank you!