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Accidentally used weed killer watering can on new grass shoots!

Posted by greengreengrass none (My Page) on
Wed, Sep 25, 13 at 21:58

Hi there, very new to gardening but moved into a new house a year ago and have been trying to get an overgrown, compacted and full of weeds garden into shape.

After chopping down two years worth of overgrowth and finally tackling the plethora of weeds that covered it from front to rear, I was faced with having to remove all the turf and re-sow the lawn because it was severely compacted and dominated by crab grass anywhere that wasn't covered in weeds.

So fast forward a year and I finally got to the point of sowing new grass seed. It has been a week now and all the work has been worth it as little grass shoots are growing beautifully. So I decided to give the lawn a watering today as it is unseasonably warm and ended up using the wrong watering can! I am so upset! I have two and they are the same except one has some cling film wrapped around a bit where it leaks a little. For some reason someone had removed the small piece of cling film and I have now used that can to water the entire lawn of new shoots! I used Round Up fast acting weed killer in it last. I did fill it with water to rinse it all out before use as it had been sat out unused for a while and had dirt in it. I am hoping this would have washed out enough weed killer residue but I'm now worried that all the new grass will die.

Sorry for such a long post. This garden has been a labour of love over the last year and I am a bit disappointed over this setback.


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RE: Accidentally used weed killer watering can on new grass shoot

  • Posted by morz8 Z8 Wa coast (My Page) on
    Thu, Sep 26, 13 at 10:01

If the can was rinsed, it may not be a set back. If you'd realized the mistake immediately, watering with a hose, soft nozzle spray (which I would have been doing with a newly seeded lawn anyway) would have been all you could have done to try to remedy. Now, it's wait and see if you'll be reseeding.

But I have to ask, why did you have Roundup in a watering can (and a leaking one at that), it's applied as a spray to foliage, not watered into the ground or poured on - should only be in spraying type container.

Please don't rely on memory to mark your products or applicators. Get a can of spray paint, red for anything used for herbicides or blue for insecticides if you have those and in the future keep them separate. If you are using and mixing concentrates, it doesn't hurt to mark the product container too, some of these companies use same color/size bottles for everything and you can mix something other than you intended. Put a blotch of bright paint on any applicator or product that would be harmful - to you or your plants.


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