Local Govt | National News Video | Parliament Headlines | Politics Headlines | Search

 


Butterfly Fans Urged To Kill Moth Plant

MEDIA RELEASE
0800 002 004 | www.nrc.govt.nz Putting Northland first

Date: 11 February, 2013

Butterfly Fans Urged To Kill Moth Plant

The moth plant has added ‘butterfly killer’ to a resume that has already earned it the dubious distinction of being one of the region’s most unwanted pest plants and a reputation as a weed local biosecurity experts love to hate.

Sara Brill, a biosecurity officer for the Northland Regional Council, says
moth plant (Araujia sericifera) is a highly invasive and toxic vine ranked among Northland’s top five non-pastoral climbing pest plants.

“It invades and smothers native forest areas, garden shrubs, shelterbelt trees and roadside plants and its milky, sticky sap can also cause skin irritation and ill health.”

However, Ms Brill says as if there weren’t already enough reasons to heartily dislike moth plant, its flowers can also fatally trap the Monarch butterflies many Northlanders love to see around their neighbourhoods.

She says moth plants are just one of a host of dangers Monarchs face, which begin when they emerge from eggs as caterpillars.

“They’re often taken away by ravaging wasps carrying them off to feed their babies.”

Ms Brill says those caterpillars which survive wasps and other perils long enough to turn into butterflies then look around for flowers and nectar for food.

“The moth plant - or perhaps more aptly named ‘cruel plant’ as it is sometimes known - has masses of lovely flowers full of nectar at the moment. Unfortunately, what the unsuspecting butterfly doesn’t know is that this nectar is so sticky it will trap the butterfly’s tongue and it can’t get away.”

Ms Brill says the trapped butterflies often die with their tongues firmly stuck in the flower and she and a colleague had recently come across a relatively small moth plant in Whangarei that held a number of dead Monarchs trapped in its flowers.

The plant is common throughout Northland and is easily recognised by its climbing vine, with paired, oblong leaves and distinctive small, clustered white flowers which develop into choko-like seedpods. It has a white, sticky sap.

She says people keen to get rid of moth plants can remove small infestations by hand.

“Seedlings are easy to pull but even large plants can be easily killed by finding the main root and pulling out about 5cm of the root. The plant will wilt within 24 hours and you can see if you have missed any smaller ones. Pull them out on public land when you see them and offer to pull out your neighbours’ moth plants as well!”

Ms Brill says large infestations may need to be over-sprayed using 5g metsulfuron methyl (for example Escort®) plus 10 ml penetrant in 10 litres of water.

“Ensure only the foliage is treated as this herbicide can transfer in the soil and kill surrounding plants, including natives.”

Those keen to help butterflies can also plant environmentally species that are good safe sources of food for them including Alyssum, bee balm, Cosmos, Echinacea, lavender, marigolds (single petal varieties), Michaelmas daisy, Mexican sunflower, Rudbeckia, Shasta daisy, snapdragon, Solidago, sweet William, sunflower, Verbena and Zinnia.

For more information about pest animals or plants in your back yard contact the Northland Regional Council on 0800 002 004 and ask to speak to a biosecurity officer or visit www.nrc.govt.nz/nasties


Credit: Ross Johnson
The remains of a Monarch butterfly, killed when its tongue became trapped in sticky moth plant nectar.

ENDS

© Scoop Media

 
 
 
 
 
Parliament Headlines | Politics Headlines | Regional Headlines

Urgent Bill Planned:
MP Pay Rises To Match Public Service

Prime Minister John Key today announced an overhaul of the Remuneration Authority Act, tying MP salaries to those of the wider public sector, which will be passed under urgency.

Mr Key says the decision was made after the Remuneration Authority’s latest determination which saw the total remuneration received by MPs increased by about 3.5 per cent...

The new legislation will be backdated to 1 July 2014, meaning the pay increase outlined in the latest determination will not be awarded. More>>

 

PARLIAMENT TODAY:

PM's Press Conference: MP Pay Rises, Solid Energy, Iraq

Prime Minister John Key answered questions in his Post-Cabinet press conference about the Iraq deployment, Solid Energy and National’s decision to overhaul the Remuneration Authority Act. More>>

ALSO:

Worksafe: MSD Charged Over Work And Income Ashburton Shooting

WorkSafe NZ has laid one charge against the Ministry of Social Development (MSD) in relation to the shooting at the MSD Ashburton office on 1 September 2014 in which two Work and Income staff were killed and another was injured. More>>

ALSO:

Iraq: Ex-Hostage Says Government Not Putting NZers, Iraqis First

Harmeet Singh Sooden is travelling to Iraq in the coming weeks to work with Christian Peacemaker Teams (CPT) on a short-term assignment. More>>

ALSO:

Joint Statement: Australia-New Zealand Leaders’ Meeting

Prime Minister Key warmly welcomed Prime Minister Abbott and Mrs Abbott to New Zealand. The visit has enabled wide-ranging and substantive discussion that has underlined the strength, value, diversity and warmth of our trans-Tasman relationship. More>>

ALSO:

Press Conference: Peters To Stand In Northland By-Election

New Zealand First Leader Winston Peters has announced his intention to stand in the Northland by-election, citing his own links to the electorate and ongoing neglect of the region by central government. More>>

ALSO:

Gordon Campbell: On The Wage Hike For MPs (and Paul Robeson)

Hard to tell what is more infuriating. Is it the 5.3% increase on the already bloated salaries of MPs, or their pantomime of outrage at being gifted with such a wonderful back-dated bonanza? More>>

ALSO:

No Designers Or Visual Artists: Flag Panel Members Announced

The Government has appointed 12 New Zealanders as members of the Flag Consideration Panel which will engage with the public about a possible new New Zealand flag, Deputy Prime Minister Bill English says. More>>

ALSO:

Labour MP Stands Down From Portfolio: Comment From Carmel Sepuloni

The first I knew of my mother’s charges was when I was called by a reporter yesterday. I spoke to Andrew and we agreed there is a conflict of interest at the present time which means I will temporarily stand aside from the Social Development portfolio. It’s the right thing to do… . More>>

ALSO:

Get More From Scoop

 

LATEST HEADLINES

 
 
 
 
 
 
 
 
Regional
Search Scoop  
 
 
Powered by Vodafone
NZ independent news