Weed Action Piroa - Brynderwyns

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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Weed Action In Mangawhai

Its beautiful estuary, a great surf beach, the sandspit with its special terns and dotterels and the wonderful natural environment combine to make Mangawhai the place to be. Unfortunately, parts of these special places are becoming overrun with garden plants that have ‘jumped the fence’ since early pioneers introduced them. Many were brought here as […]

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