hi. we moved down the hill from my parents last year. lots of disturbed soil and thistles. did not get ahead of them in the summer.read an article on canada thistle in ab agriculture "Bye Bye Canada Thistle"
The author suggested disturbed and poor soil was the reason for thistle invasion. His solution included chopping, mulching and manuring and rototilling thistles for about three years and the things were gone and have remained gone. My question is should I try this?
I have a big bed (400 feet long by 20 feet wide along driveway) with some transplanted things: yarrow, lilac, daisy etc it is both very clay and thistle and grass infested.
Would 20 year old manure do the trick? should I rototill first and kill the roots with burning or rototill and leave roots buried by manure? Should I lay manure?
My mum thinks manure will just make them grow 10 feet instead of this years' 5 feet tall.She thinks I just need to pull them. I avoided pulling all summer, thinking everyone I would pull would leave 900 viable plants underground just waiting to pop up. However, I have since started pulling.
I am feeling overwhelmed cuz I have 6 acres and 2 little kids, we are building a garage and live where the snow flies.
I don't know necessarily what I should do or even do first (needless to say there are other areas needing attention, but so far this bed has had the most time invested)
I have also covered other areas with poly hoping to kill the grass underneath and buy myself time till next year. This may work,but there are already a lot of plants there that I would have to avoid and the poor soil issue still remains.
Any ideas how, when what order etc would be great
Thanks Nance outside of Calgary