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

2040 Target And Lower Standards: “Swimmable” Rivers Five Times More Likely To Make You Sick

Forest & Bird has condemned the government’s new water quality standards, warning New Zealanders that they lock in current levels of water pollution and allow for a 5-fold increase in the chance of getting sick from swimming in a river.

“Despite an explicit assurance from Minister Smith that the new water standards would provide for human and ecosystem health, he has failed to deliver on either of these things,” says Forest & Bird CEO Kevin Hague. More>>

ALSO:

 
 

Immigration: Clampdown On Rogue Employers Good First Step

The Human Trafficking Research Coalition is pleased at the new clampdown on rouge employers who exploit migrants announced by Minister Woodhouse this morning, and believes this is a step in the right direction. More>>

ALSO:

Mayor: 750 New Social And Affordable Homes For Wellington (Over A Decade)

The next stage of Wellington’s Housing Upgrade Programme will see at least 750 new units of social and affordable housing built over the next decade, Mayor Justin Lester has announced. More>>

ALSO:

22/2: Christchurch Quake Memorial Unveiled

A city, a region, a nation and an international community impacted by the Canterbury Earthquakes will come together to mark the sixth anniversary of the deadly quake and dedicate Oi Manawa Canterbury Earthquake National Memorial. More>>

ALSO:


November Quakes:

Gordon Campbell: On The Mana-Maori Party Deal

If the self-interest involved wasn’t so blatant, the electorate deal between the Maori Party and Hone Harawira would be kind of poignant. It’s a bit like seeing the remaining members of Guns’n’Roses or the Eagles back on the road touring the nostalgia circuit… playing all the old hits of Maori unity and kaupapa Maori politics. More>>

ALSO:

Private Provision: First Social Bond To Focus On Mental Health

New Zealand’s first social bond will help around 1700 people with mental illness into work, Finance Minister Steven Joyce and Social Investment Minister Amy Adams say. More>>

ALSO:

Immigration: Short Reprieve For Nine Indian Students

A temporary hold on deportations of nine Indian students is a step in the right direction but the Government urgently needs to implement safeguards to stop further injustices to more international students, the Green Party says. More>>

EARLIER:


Megaupload Case: High Court Rules Dotcom, Co-Accused Eligible For Extradion

Internet entrepreneur Kim Dotcom and his three co-accused are eligible for extradition to the United States, New Zealand's High Court ruled... Justice Murray Gilbert upheld a decision by the District Court that there were grounds for Dotcom, Mathias Ortmann, Bram van der Kolk and Finn Batato to be extradited. More>>

ALSO:

PREVIOUSLY:

Port Hills Fire: Midday Update, Monday 20 February

• 9 homes destroyed
• 2 homes with partial damage. Damage includes things like cracked windows, heat damage.
• 3 properties with damage to other external structures e.g sheds or outbuildings More>>

ALSO:

Get More From Scoop

 

LATEST HEADLINES

 
 
 
 
 
 
 
 
Regional
Search Scoop  
 
 
Powered by Vodafone
NZ independent news