Cape pond weed
Origin: South Africa
Regional Pest Management Plan (RPMP) status
- Aotea — Eradication
- Hauraki Gulf Controlled Area Notice pest
Bottom-rooted aquatic perennial. Rootstock is tuberous. Leaves are floating, linear and < 25 cm long. Flowers are white and borne on emergent spike above the water’s surface. Fruit is c. 1 cm long.
What you need to know
To help protect our environment:
- You must not breed, distribute, release or sell Cape pond weed on Aotea/Great Barrier Island group.
- You must not plant Cape pond weed on Aotea/Great Barrier Island group.
Auckland Council will control Cape pond weed at all sites within the Aotea/Great Barrier Island group where it is known to occur.
If you see Cape pond weed anywhere on Aotea/Great Barrier Island group, please report it to Auckland Council at firstname.lastname@example.org.
Still or flowing water bodies < 1.2 m deep.
Seeds dispersed by water.
Impact on environment
Potentially competes with native freshwater vegetation. Stems may entangle recreational equipment.
Follow up treated areas 3 times per year.
Do not attempt to undertake control of this species on Aotea/Great Barrier Island group. Please report to Auckland Council if seen on Aotea/Great Barrier Island group.
Method: Dig out.
Plant parts requiring disposal: All parts.
Disposal options: Remove to greenwaste or landfill if practical.
Biocontrol is currently not available for this species.
Community agrichemical control recommendations
Certified Handler/Experienced agrichemical user: Foliar spray emergent foliage with 100ml glyphosate green per 10L of water.
Caution: When using any herbicide or pesticide please read the label thoroughly to ensure that all instructions and safety requirements are followed.