Can I mix vinegar with Roundup? - ECHEMI.com (2024)

Probably not a good idea.

Roundup is only slowly taken up through the leaves and is easily washed off.

There is a steady trade in surfactants and oils that are supposed to increase its speed of uptake and give better results.

Since vinegar is likely to scorch the leaf, IMHO it would slow down the uptake of Roundup.

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Can I mix vinegar with Roundup? - ECHEMI.com (2024)

FAQs

Can I mix vinegar with Roundup? - ECHEMI.com? ›

Probably not a good idea. Roundup is only slowly taken up through the leaves and is easily washed off.

Can you add vinegar to Roundup? ›

Vinegar can enhance the effectiveness of normal Roundup. Roundup is a well-known wide-spectrum herbicide that contains the active ingredient glyphosate to kill a variety of weeds and plants. Though highly effective on its own, the potency and effectiveness of this product can be increased with common household vinegar.

What can I mix with Roundup to make it work better? ›

Use REAL ammonium sulfate (AMS).

AMS also slightly lowers water pH and provides fertilizer (N & S) to help your crop recover more quickly and help your weeds die more quickly.

Can I pour straight vinegar on weeds? ›

Vinegar is acidic and will eventually kill most broadleaf weeds, but the acid will kill the leaves before reaching the root system, and the weeds may grow back quickly. For longer-lasting removal, mix 1 cup of table salt with 1 gallon of vinegar. Salt dries out the weed's root system.

Can you add dish soap to Roundup? ›

Dish detergent can be used as a surfactant, as previously stated, so that the Round-up will "stick" to the leaves. I always buy a commercial surfactant, as it is not very expensive and you don't have to bother with the foaming of the soap.

Does spraying weeds with vinegar work? ›

Acetic Acid Concentration

Some herbicidal vinegar products are 20% or 30% acetic acid. In general, 20% or 30% acetic acid is more effective because it more completely kills young leaves and growing points. If a plant is not completely killed by vinegar, it can resprout.

Does vinegar work better than Roundup? ›

That's a little bit disappointing, but it's not at all surprising [10:13] because again, Roundup is a systemic. It's going to kill the entire weed. It's absorbed in through the leaves, goes to the stems and the roots, and kills the whole thing. Vinegar, all it's doing is just killing the leaves and that's it.

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