Robust, erect, rhizomatous grasses <1m high. Massive root systems, short fleshy rhizomes. Wide, ribbed, alternating leaves. Flowers in head of short, flattened spikelets.
Estuaries, harbour margins.
Only Spartina anglica produces seed. All species spread by rhizomes or stem fragments.
Takes over coastal marine areas. Loss of habitat for birds, recreational fisheries. seafood. Traps sediment, causes flooding. Excessive growth causes navigational problems.
Follow up spray in Feb & Nov for 3 years.
1. In areas defined as Total Control, report it immediately to the Auckland Council Biosecurity team, who will arrange for its control at their expense.
2. Small stands can be hand pulled or dug out but care must be taken to remove all rhizomes. Dispose material carefully and follow-up.
3. Spray (200ml glyphosate/1L (if plants are clean, always spray on outgoing tide) or 10ml haloxyfop+ 20ml crop oil (if plants not clean)/1L).
Caution: when using any herbicide or pesticide PLEASE READ THE LABEL THOROUGHLY to ensure that all instructions and safety requirements are followed.