Weeds - how to kill onion weed infestation

by Tony Harris
(Forster NSW Australia)

I have an onion weed infestation in my garden. I have sprayed round up on it and all the plants or leaves die off but every time I dig up the soil, they appear again.
I was told that I could plant some other plant as a companion and that it would kill it. I would be very greatful for a positive answer as I cannot see any choice but to dig out all the soil and replace it at the risk of re-infesting the soil. A never ending circle.

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Weeds - how to kill onion weed infestation

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Apr 27, 2010

try this
by: bill t.

I applaud those who suggest white vinegar sounds like a workable solution. Also if one uses a glysophate product it works better if a bit of vege oil is added to the mix. this helps the solution to stick to the leaf stems.Its also advisable to wait until the onion weed is actually flowering before spraying.Hope this helps, you have my sympathy with your problem but perseverance will win out.
Cheers bILL t. :)

Mar 24, 2010

Onion Grass
by: Tony Harris

Try White Vinegar. I'm going to try it this weekend. Good luck.

Mar 24, 2010

Thanks
by: Tony Harris

If this works as you say I will be eternally grateful. I will replant the garden this weekend and if they do re-emerge I will be ready for them.Thanks again.

Mar 22, 2010

cure? worked for me
by: bill

Tried lots of things until an old timer told me to try WHITE VINEGAR! Put in a spray bottle and it really did work. GOOD LUCK