Lavarocks & Weed

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Rotti_one Harker Heights, TX(Zone 8b) May 09, 2007

We recently moved in a new home and we also like the landscaping/
The previous owner used a lot of black lavarocks.
It looks good.
But now the weed starts growing.
Is there something i can sprinkle etc...on top of the lavarocks to control
the weed????
I tryed roundup but i guess it don't go down all the way to the soil
because of the rocks.
Any ideas ? Thanks

Christine

Post #3479395
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ecrane3 Dublin, CA(Zone 9a) May 09, 2007

Roundup doesn't do any good if it goes on the soil, it has to go on the weeds' leaves for it to work. You can use corn gluten as a pre-emergent herbicide (prevents weed seeds that land there from growing) but it won't do any good for weeds that are already there. Personally I prefer vinegar on a sunny day to the Roundup, but in either case you need to get the stuff on the weed leaves.

Post #3480051
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simmysam3 May 15, 2007

Use roundup concentrate, mix it a little strong. That will kill off existing weeds, if it does not kill them, somethings wrong. After they are dead it can help to use a line trimmer to clear off the heavy stuff. Then sprinkle Casceron on top. That will form a weed barrier that should last about three months... just don't disturb the surface (walking on it etc).

Post #3498798
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WeeNel Ayrshire Scotland, United Kingdom May 16, 2007

I would walk among the weeds with a stick and whack the leaves this helps to get the weedkiller or whatever you want to use, into the sap of the weed quicker, remember it takes sometimes a few weeks before you start to see any discolouration of the leaves, it has to travel right down to the roots and a day or so to reach back up to the leaves, so maybe it is still working. good luck, WeeNel.

Post #3504946
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