what is best to spray to kill weeds and grass?

Anything that has glyphosphate as the main active ingredient and is mixed 2.5oz per gallon.

Shhhhhh

Salt

Collared?

WNHI

Downshift got it correct.

You spray beam on weeds? What a criminal.


If the weed in question is near the back porch, pissing on it every morning will make short work of it.

how long can I go between sprayings?

Depends on how much it rains, how much you sling grass seeds on it when you cut the grass, how much sun it gets, etc.

Putting some surfactant in the spray will help it kick more arse.

I put about ten gallons of old gas in a ditch last year. I wanted to light it for fun but didnt. Lucky nobody came by and threw out a cigerette.