functions.php

<?php

/**
 * Blog Sidebar 
 *
 */
function be_blog_sidebar() {
  if( is_home() || is_archive() || is_singular( 'post' ) ) {
    remove_action( 'genesis_sidebar', 'genesis_do_sidebar' );
    if( function_exists( 'ss_do_sidebar' ) )
      remove_action( 'genesis_sidebar', 'ss_do_sidebar' );
      
    dynamic_sidebar( 'blog-sidebar' );
  }
}
add_action( 'genesis_sidebar', 'be_blog_sidebar', 5 );