Quote:
Originally Posted by Rathji
paint roundup on the leaf of the individual plants with a small paintbrush, the stuff is safe to drink, and goes inert when it hits the soil.
I doesn't kill the plant so much as causes it to grow super fast and 'burn' it self out. If you were to spray an entire area that was weeds and soil you would have dead weeds in 2 days and plant new plants right away.
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Round Up will kill a dandelion. It will also kill everything else it touches since it is a non discriminating type of herbicide. So yeah, if you spray it on weeds and soil, no problem since there are no other plants in the area that you might wish to save. It also is very safe to use compared to most herbicides.
On the other hand, a herbicide something like Killex is discriminating in that it kills broadleaf plants. So if you would spray Killex on your lawn, it would kill the dandelion which is a broad leafed plant but it would not kill the grass unless of course you mixed it in the wrong proportions in which case it will burn and kill the grass too.
So it is correct that if a dandelion is in the lawn, you will have to paint the Round Up on the leaves of the dandelion only because if Round Up touches any blade of grass, it will kill that too.
I have never seen Round Up work in 2 days though. Usually you see the dandelion or weed turn yellowish and start to wither and dry up after about 7 days. And I live in the country and can buy "farmers" Round Up which is not watered down like the product that is available in garden centers in Calgary. And you can not buy the "farmers" version unless you provide your legal land description.
The person who started this thread is interested in a green solution to getting rid of dandelions. It will require hard labor since dandelions have long tap roots and if you do not get all of the root, a dandelion is an extremely tough weed and will survive and come back with a vengeance.