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

 

Public support needed to keep water free of banned weeds

Public support needed to keep water free of banned weeds

The Ministry for Primary Industries (MPI) and Auckland Council are
asking residents to report any fresh sightings of two banned and
highly destructive weeds - water hyacinth and salvinia.

Both weeds are present in the Auckland region and are known for
growing rapidly to form large dense floating mats on ponds, drains,
lakes and still waters in swamps.

“Water hyacinth and salvinia are among the world’s worst
weeds,” says MPI Response Manager Emmanuel Yamoah.

Both plants grow very quickly. Water hyacinth is able to double its
population size in as little as 12 days, while salvinia only needs
about a week.

“These weeds have the potential to cause huge damage to our
waterways, native aquatic plants and fish. They can clog waterways,
making almost all water activities impossible and increasing the
danger of drowning to humans and livestock. The weeds also have
adverse impacts on hydro-electricity generation and irrigation.”

Dr Yamoah says MPI and the Auckland Council have an eradication
programme in place for water hyacinth and salvinia.

“We need to know where these weeds are so we can wipe them out, so
the assistance of the general public is crucial to the success of the
eradication programme.”

He says many home and farm ponds around Auckland have been cleared of
the noxious weeds, thanks to calls from concerned owners and
residents.

“Anyone who sees any of these weeds, or suspects they may be
present, should report it to us on 0800 80 99 66. MPI contractors
will visit the site and remove the weeds free of charge if they find
them.”

It is illegal under the Biosecurity Act 1993 to share, grow or sell
unwanted and notifiable organisms.

Background information about salvinia and water hyacinth

Salvinia is a small, free-floating aquatic fern with branched,
horizontal stems that lie just below the water surface. The upper
surface of the leaf is covered with distinct white hairs. It has a
root-like structure underneath each leaf pair and as the plant
matures, these ‘roots’ resemble wet hair. The plant grows usually
up to 30cm long.

Water hyacinth is a floating aquatic perennial, with distinctive
bladder-like swollen leaf petioles giving buoyancy. It has shiny
rounded leaves with thick masses of feathery dark roots that can
reach 2.5m in length. A single flowering stalk with a cluster of
mauve-blue flowers, each with a yellow spot, is produced above the
foliage. Plants produce floating horizontal stems from which new
plants arise.

Water hyacinth was first declared as a Class A noxious weed in 1981
under the Noxious Plants Act. Salvina was first declared in 1983.

Visit http://www.biosecurity.govt.nz/pests/salvinia
for more information.

Pictures of water hyacinth and salvinia are available on request.

Ends

© Scoop Media

 
 
 
 
 
Parliament Headlines | Politics Headlines | Regional Headlines

Budget '17: Budget Spends Down Future Surpluses

Tax cuts for every working New Zealander, targeted to low and middle income earners, more generous assistance for families and renters, and a massive spend-up on public services infrastructure mark Finance Minister Steven Joyce’s election year Budget.

The package of changes to income tax thresholds, the Working for Families programme, and the Accommodation Supplement is the Budget’s political centrepiece and will cost $2 billion a year. More>>

Scoop Full Coverage: of Budget Announcements & Reaction
Latest: Scoop Search

ALSO:

 
 

Auditor-General Stands Down For Investigation: Gordon Campbell On (Not) Taking Responsibility

So Martin Matthews, our current Auditor-General wishes he could have detected “earlier” the fraud that occurred on his watch at the Ministry of Transport. Hmmm. But he could have detected it earlier, surely? That’s the point. More>>

ALSO:

NGOs Pleased: Govt To Halt Collection Of Client Data

Brenda Pilott, the chair of ComVoices and national manager of Social Service Providers Aotearoa, congratulates the government on its decision to call a halt to the collection of individual client data until the concerns of not-for-profit service providers have been worked through. More>>

ALSO:

Gosh: Blasphemy Law Repeal Struck Down

Chris Hipkins, the MP who tabled a Supplementary Order Paper to add our Blasphemy Law to the Statutes Repeal Bill, said this was a "sad day for freedom of speech, tolerance, and leadership". More>>

ALSO:

Gordon Campbell: On The Navy’s Dealings With Fat Leonard, And Twin Peaks

At an official level, our “she’ll be right” attitude routinely spills over into a keen resentment of anyone who suggests the outcomes may be less than satisfactory… The Navy has now gone one step beyond. It won’t even ask itself whether it did a good job. More>>

ALSO:

NZDF: Fifth Rotation Of Troops Heads To Iraq

The fifth rotation of New Zealand Defence Force troops left today for a six-month mission training Iraqi soldiers. More>>

ALSO:

Gordon Campbell: On The Demonising Of Iran

Will New Zealand still be willing to pursue its recent trade overtures to Iran, now that US President Donald Trump has used his speech in Riyadh to single out Iran as the main source of terrorism and instability in the Middle East? More>>

ALSO:

 
 
 
 

Opening The Election Supporters

 

LATEST HEADLINES

  • PARLIAMENT
  • POLITICS
  • REGIONAL
 
 

Featured InfoPages

Opening the Election