The U.S. Army Corps of Engineers (USACE) Invasive Management Species Branch is committed to providing technical support for the control of invasive species in our national and regional ecosystem restoration program. The water hyacinth has invaded many water systems in the south and is slowly working its way north. The management of this aggressive aquatic plant takes the three methods: biological, chemical and mechanical. USACE uses these methods to control the invasive water hyacinth. This inva