Thinvert Spraying phragmites Using low ground pressure equipment to spray tall phragmites. The effect hormone growth spray has on Phragmites at Bauer Park in Madison. Spraying large amounts of phragmites from low ground pressure equipment. phragmites Marsh Master II Amphibious vehicle used in the marsh. Before Before and after images of vegetation management After We use a tracker boat to control phragmites on the edge of bodies of water and islands. Area of phragmites control Jaime holding the boat