The arrival of Hurricane Sandy prompted Marshfield officials to postpone the pickup of yard waste until this week. Collection will take place on residents’ regular trash day, and the usual rules apply. Branches must be no larger than 3 feet long and 1 inch in diameter, and should be tied with twine. Other natural yard waste such as grass clippings, shrub trimmings, and leaves must be placed in trash barrels or yard waste bags. Plastic bags will not be accepted. Residents with questions may call the Department of Public Works at 781-834-5560.