Aquacide — Bur Reed Sparganium Control: 4 Great Options

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Bur Reed Sparganium Control: 4 Great Options

Published by Jamie Markoe on November 14, 2013 0 Comments

WEED CONTROL, 4 GOOD OPTIONS FOR BUR REED

Bur Reed, sparganium, is a flowering perennial weed that grows in the shallows of marshes, ponds and streams.  There are 9 different species of Bur Reed in the United States.

Bur Reed has long, narrow alternating leaves that may be floating or emersed, erect or limp.  It spreads from detached rhizomes and seed from spherical flower heads.  Seed survival is not high.

Bur Reed does provide both food and habitat for nesting wildlife.

4 good options for control:

Chemical control:

Endothall is a fast-acting contact option best applied early summer when submersed weeds are 12-14” tall and water temperature is 65°F or warmer.  Repeat treatment may be needed to make good contact with all of the foliage.

Diquat is a second fast-acting contact option that can be applied any time good contact with the foliage can be made.  Again, repeat treatment may be needed to make good contact with all of the foliage.

Glyphosate is an excellent mid-season systemic option.  Application is best made when spherical flowers appear.  Repeat treatment may be needed to kill the entire rhizome.

Mechanical control:

Rhizomes are easily uprooted.  Dispose far from shoreline to prevent re-growth.  Regular cutting will also reduce the amount of growth.

Biological control:

Cattle & livestock will eat Bur Reed.  This is not a normal biological control option but it will significantly reduce the amount of growth.  Grass Carp will also eat Bur Reed.  It is not their first choice but they will consume it if there is nothing else available.

Environmental control:

Reduction of sunlight and/or reduction of water level will both impact weed growth.  Water level should be reduced to dry out for a period of 2-3 months.

Next Steps:

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