chemical brush clearing questions- mixing/buying?

[agcomike]

I have about 600ft of fence row that has a lot of trees with brush growing there is there a good cheap chemical to put on them you can get from coop or tsc? I been using ortho brush-b-gone @ $15 for 32oz which makes ~6-8 gal. I seen a bunch of products at tsc in gallon containers for $17-23 but the instructions for useage were not readily showing mixing with water but implied they could be.. seemed to be 32-48% methsomething salt the same as in ortho..
thanks

 

[Justaplain]

I have had good luck with "Round Up" BRUSH killer. It is slow but I have sprayed Honeysuckle under grown trees with no ill effect. One application per year and rather light around big trees but on fence lines and banks I give them a good shot once a year and get what I miss the next year. The grass goes to but comes right back. K Mart broad leaf gets a lot of stuff and is cheaper and worth experimenting with, it will get honeysukle and ash. bcs