functions.php

add_filter( 'genesis_breadcrumb_args', 'child_breadcrumb_args' );

function child_breadcrumb_args( $args ) {

if ( is_single() ) {

    $args['labels']['prefix']        = '';
	$args['home']             = ' Home ';
	$args['sep']              = ' >> ';
	$args['labels']['author'] = ' Posts ';

	return $args;

    }

}