Evening all . I got a few ditches and banks with overgrown hedges cleaned up over the winter. I have electric fence up and it is a grand job . I usually use grazon 90 under fences but can anybody recommend a stronger spray to stop briars and shrubs growing back or do you think grazon will do the job ok . Diggerman did a great job but there is a lot of bits of briars and shoots of bushes ready to grow when it heats up a bit ?