What is best for killing all grass/weeds along fence line?

[Grandad4]

Getting ready to do my fence lines and will start with a solution of 4oz of RM43 to one gallon water. Will use a 3 pt sprayer on my tractor. Going for total vegetation eradication along the fence line which contains blackberry, rose, and weeds. Acquired the property a few years ago and the fence lines probably haven't been maintained in 15 years. Lots to do!

RM43 is very effective. Mixture of glyphosate for quick knock-down of vegetation and another long-acting agent that prevents future germination for a year or more. Be careful where you use it as NOTHING will grow in that area for a year or two.