|Botanical Name||Rumex sagittatus|
DescriptionLow climbing or scrambling herb. Tuberous woody rootstock, stems to 3 m long. Arrow-head shaped leaves 30-80 x 20-60 mm. Spikes of small, attractive yellow-pink flowers Nov-Mar are very distinctive.
Where is it found?Coastal areas, road and railway verges, waste lands, near hedges and settled areas. Common and widespread.
Why is it a problem?Develops into smothering mass among native plants.
How does it spread?Persistent tubers and creeping rooting stems. Broken roots resprout. Wind dispersed seed.
How do I get rid of it?
Grubbing out roots is very difficult and any root portion broken off will sprout.
Spray with selected herbicide.
(i) Tordon 2 g granules (Herbicide has long residual life in soil.)
Rate - 2 g per plant. Apply ½ level teaspoon to the crushed centre of each plant.
(ii) Metsulfuron + Penetrant
Rate - Knapsack 5 g Metsulfuron + 10 ml Penetrant/10 litres water.
(iii) Glyphosate + Penetrant
Rate - Handgun 1 litre Glyphosate + 200 ml Penetrant/100 litres water. Knapsack 100 ml Glyphosate + 20 ml Penetrant/10 litres water.
Develops numerous tubers beneath the soil surface, allowing plant to easily regenerate if the top growth is pulled away. Spray with Glyphosate or Metsulfuron.