Either a strong saltwater solution or straight white vinegar in a sprayer will do it.
Both are cheap, non-poisonous solutions to the problem.
You could borrow my Cash horse for a month.
I don't have hot wire and he limbos under the bottom wire all around the fenceline.
It looks like I keep a 2' path mowed all around the pastures.
He's cheap too...will work for apples or Dumor molasses cookies.
*friend of bar.ka*RIP all my lovely boys, gone too soon: Steppin' Out 1988-2004 Hey Vern! 1982-2009 Cash's Bay Threat 1994-2009
Remove the bottom board or wire and they will eat under the fence.
I don't know why I didn't do this earlier, but this summer I moved the lowest strip of tape up one level so I could get the mower under it more easily. Then I came to the section of fence where the lowest board is much higher. No weeds. The grass was neatly eaten to about 6" past the fenceline. So I left the tape section with only the 2 top strips for the rest of the summer.
My goat experiement did not work. We've had them for 8 years now and they probably ate 15 weeds.
Ponies! My ponies are great at keeping the fenceline looking weed and grass free. They don't eat the weeds, but once the grass is gone, the weeds seem to die on their own. There are some places where I have wire down lower that they don't touch, but I can get the weed whacker in there easily.