So it seems GMO is guilty and low hanging fruit for correcting algae blooms, but Algae blooms are not listed in the above long list, why?

Published July 10, 2016 06:46 by Greg Chick, ARCSA, American Rainwater Catchment Systems Association. - AP, LEED AP, CWM. C-36

So it seems GMO is guilty and low hanging fruit for correcting algae blooms, but Algae blooms are not listed in the above long list, why?