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Vinigar as a weed killer


 
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Greengage
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Joined: 09 Nov 2011
Posts: 3127
Location: Kildare

PostPosted: Mon Jun 08, 2020 7:49 am    Post subject: Vinigar as a weed killer Reply with quote

I have seen loads and loads of posts suggesting the use of Vinegar as a weed killer. I keep telling people its useless but some wont just listen so here is why.
Here were talking about Vinegar you can buy in your local shop not the Strong Acetic Acid@20% which requires serious PPE and will destroy concrete. Shop bought vinegar contains about 5% acetic acid.
Mixed with water it is further diluted and when sprayed on weeds it will burn the parts it touches of small weed seedlings only. it does not effect the roots and requires many treatments. So your talking about spraying it every week for approx. 6 weeks to have any effect. Therefore vinegar only affects the cell membranes of a plant, causing rapid breakdown/desiccation of foliage tissue on contact so if you want to kill plants weeds effectively you need something that is absorbed by the plant and translocated downwards to kill the roots you need something like Glyphosate which was first registered in the US around 1974. Remember if using any weed killer read the instructions, wear proper PPE equipment read the instructions as it only effective at the correct dosage, read the instructions do not add a pinch for the cat and finally read the instructions.
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