Hello- We live in West Linn and our neighbors on both sides have recently cleared their land. The additional light has led to a pretty aggressive uptick in our weed problems. The biggest offender is blackberries. We are wondering if there is a product we can spray them with that is not as noxious as Round Up. We would rather not use that product, but we need something that we can apply easily. We live on two acres and the blackberries on our perimeter are pretty extensive. Thanks so much for any help you can offer.