I got a bid to do for a homeowners association and wandering if anyone could help with a small problem. They have a slope that is 650 feet long and 35 feet from the bottom to the top of the hill. I am going to plant the entire slope with junipers and mulch it. My question is what is the best way to get rid of the grass on the slope. I don't want to use any grass killer because I don't want it to run off and kill any of the lawns at the bottom of the slope. I thought of cutting it very low and installing fabric overtop of it but don't know if the mulch will wash down the hill because of the fabric being slick. I also thought of running a dingo with a cultivator over the entire area and tilling grass under. The slope is pretty steep and don't want to tip any equipment over. Any suggestions would greatly be appreciated. Thanks.