A proposed avocado farm near Sedgefield has conservationists asking whether PG Bison’s environmental promises extend beyond the paper they are printed on.…. Enter your email below and we'll send you a one-time pin to log in. {JSON.stringify(article.attachments[0], null, 2)} --> A proposed avocado farm near Sedgefield has conservationists asking whether PG Bison’s environmental promises extend beyond the paper they are printed on.