|
Method
|
Effectiveness
|
Advantages & disadvantages
|
| Herbicides
(Dalapon, Glyphosate) |
Can
be effective though Dalapon is difficult to obtain and Glyphosate not fully
trialed |
Requires
continuing treatment. Relatively expensive |
|
Digging
|
Partially & on a small scale (mainly seedlings)
|
Labour intensive & costly on a large scale
|
|
Dyking and inundation
|
Partially effective in preventing spread
|
Costly & damaging to other saltmarsh communities
|
|
Bulldozing (removal of surface)
|
Ineffective
|
Potential damage to mud surface
|
|
Rotovating & Harrowing
|
Counter-productive
|
Greater propagation from broken rhizomes
|
|
Burying (ploughing & rotovation)
|
Effective if plants are covered
|
Difficulties of access
|
|
Crushing
|
Partially effective
|
Requires repeat treatment, vehicular access difficulties
|
|
Burning
|
Ineffective
|
Impractical
|
|
Grazing
|
Prevents seedling production, no reduction in clumps
|
Increases shoot density
|
|
Mowing
|
Prevents seedling production, no reduction in clumps
|
Can increase shoot density
|
|
Covering (black plastic)
|
Partly effective on a small scale
|
Difficult to keep plastic in place
|