The industries that would hurt the southern economy the most based on the graph are likely manufacturing and utilities. Both of these industries show a noticeable decline in employment over the period represented in the graph. Manufacturing is a significant contributor to the southern economy, particularly in states like Georgia, Alabama, and Tennessee. A decline in this sector could have a negative impact on the region's overall economic health. Similarly, a decline in the utilities sector could also have a detrimental effect on the southern economy, as reliable and affordable energy is crucial for businesses to operate successfully.