Weed Action Whangarei Heads

A community taking action to stop invasive weeds from taking over the incredible natural environment we all value. Join the fight, in your own backyard or in the bush, and protect what is uniquely ours!

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Arum lily    

Zantedeschia Aethiopica - Image courtesy of KEW botanic Gardens

How to Control:

  1. Slash tops: Leave on site to rot down. Dig out tubers, dry and burn or bury deeply.
  2. Cut stump application: Cut stems and treat with (1g metsulfuron + 100ml glyphosate + 10ml penetrant/1L water). Leave cut stems on site to rot down.
  3. Weed wipe (1g metsulfuron + 150ml glyphosate + 10ml penetrant/1L water).
  4. Overall spray Jun – Sept with (3g metsulfuron + 150ml glyphosate + 10ml penetrant/10L water). Two applications may be required early in the season to prevent flowering, then later to control daughter rhizomes.
  5. Overall spray in spring – late autumn (5g metsulfuron + 10ml penetrant/10L water).

Chemical control is best done in late summer when wet areas are dry as metsulfuron must not be used over water. Follow-up treatment is essential.

Begin clearance at top of catchment. Digging usually leaves root fragments and dropped tuber pieces which resprout. Small infestations may be left untreated where regeneration to dense forest is occurring, however removal of arum will increase native seedling establishment rate. Mowing gives no control.

Caution: when using any herbicide or pesticide PLEASE READ THE LABEL THOROUGHLY to ensure that all instructions and safety requirements are followed.

For more information and pictures of this weed check out the Weedbusters info page.

 

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What’s New

FREE Invasive Weed Disposal – Community Weed Amnesty

* Note; this service is available to Whangarei Heads Residents only* Weed Action is trying to make it as easy as possible for you to take action against weeds. Following the success of our previous weed amnesty initiatives, here’s another to help motivate our community. After all, what better time is there than NOW to […]

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Upcoming Events

  • Tamaterau Weed Action - April 21, 2021 @ 9:30 am - 12:30 pm

  • Taking Back Reotahi - April 25, 2021 @ 9:00 am - 11:30 am

  • Tamaterau Weed Action - April 28, 2021 @ 9:30 am - 12:30 pm

  • Tamaterau Weed Action - May 5, 2021 @ 9:30 am - 12:30 pm

Weed Action Groups

  • Tamaterau Weed Action
  • Headland Farmpark Weed Action
  • Wharf Rd Weed Action
  • Kohinui Catchment Landcare

View all Weed Action Groups

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