A Likely Mechanism to Decrease EWM growth-Microbes?

A paper published by Turcotte et al. (1991) showed that bioaugmentation of sediment microbes (essentially, adding non-pathogenic strains to the sediment) decreases They used the microbial solution Bacta-Pur (TM) in bioaugmented areas and noted a 60-90% decline in Eurasian Watermilfoil.  These studies were conducted in experimental ponds but were compelling.  In the Indian Lake study, we noted significant declines in the milfoil in the aeration treatment region but little decline in the "microbe-only" zone and none in the control.  Thus, addition of aeration with bioaugmentation may be necessary as a coupled or synergistic effort to alter the sediment biogeochemistry to reduce nuisance milfoil growth.