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

 


Lagarosiphon – a weed wrecking boating and swimming spots


November 23 2012

Lagarosiphon – a weed wrecking boating and swimming spots

Lagarosiphon is a major threat to some of Otago’s best holiday lakeside spots. With summer holidays around the corner it’s time for boaties to do their bit to control this pest plant.

Boaties, and everyone using lakes and rivers, can help halt lagarosiphon’s spread by ensuring they Check, Clean and Dry their craft and equipment of accumulated weed.

In the worst-affected areas, where they are most likely to see the weed: Lakes Wanaka, Dunstan, Roxburgh; and the Clutha River/Mata-Au; it is particularly important to stop its spread.

The dispersal of fragments of lagarosiphon into a river or lake can lead to new infestations that can spread quickly. Boaties and other people using recreational equipment that can pick up the weed should destroy it as soon as they find it on their equipment.

Otago Regional Council (ORC) director regional services Jeff Donaldson says the council monitors high risk areas for the spread of lagarosiphon.

Didymo is another troublemaking algae which can cause problems in waterways at this time of the year, including forming massive blooms in streams, rivers, and lakes.

Mr Donaldson says this pest can be spread by a single drop of water.

“Even if you can't see it, you could be spreading it.”

As with lagarosiphon, the best way to contain didymo is to Check, Clean, and Dry.

This involves:

Check –- remove all visible threads or clumps of weed and algae from gear and clothing

Clean –- soak or scrub all items of equipment for at least one minute with a five percent measure of biodegradable dishwashing solution – or one tablespoon of detergent per 250ml

Dry –- after cleaning equipment, or if cleaning is not practical (e.g. animals), dry to touch then leave for a further 48 hours before entering another waterway.

“We are asking boaties moving between waterways to Check, Clean, Dry all equipment that has come into contact with river or lake water – particularly boots and anchor wells,” Mr Donaldson said.

Water absorbent materials such as boots need to be soaked for a few minutes to allow thorough saturation.

Mr Donaldson said following these simple procedures would help slow the spread of all freshwater pests like didymo and lagarosiphon throughout South Island waterways.
ends

© Scoop Media

 
 
 
 
 
Parliament Headlines | Politics Headlines | Regional Headlines

 

Gordon Campbell: On Bank Scandals (And Air Crashes)

Last month, the Australian Securities and Investment Commission (ASIC) filed proceedings against Westpac over activities that have some distinct echoes of the Libor scandal. More>>

Budget: Health Funding Must Keep Up With Need

NZNO: “The nursing team has been doing more with less for years. It’s getting to the point that we’re really worried about our colleagues, our patients, our jobs and the level of health care available for people in our country." More>>

ALSO:

Emissions Inventory: Time For The Government To Do The Right Thing

It’s time for the National Government to step up and do the right thing to reduce climate pollution as data shows New Zealand’s greenhouse gas emissions are higher than ever, the Green Party said today. More>>

ALSO:

Budget 2016: More Partnership Schools To Open

Seven new schools will join the eight Partnership Schools already open, along with further new schools opening in 2017. “The growth of this policy is a reflection of the high level of interest from educators and community leaders,” Mr Seymour says. More>>

ALSO:

No Correspondence With English: Did Brownlee Make Up Sale Of Navy Ships ‘On The Hoof?’

Having revealed that several Royal New Zealand Navy vessels have not left port in years, New Zealand First is now asking the Minister of Defence to prove he did not come up with the idea of selling HMNZS Taupo and Pukaki until the media asked him. More>>

Housing Plans: Labour- Abolish Auckland Urban Boundary
The Government should rule out any possibility of an urban growth boundary in Auckland Council’s Unitary Plan if it is serious about fixing the housing crisis. More>>
Greens - State House Solution
The Homes Not Cars policy allows Housing New Zealand to retain its dividend and, in addition, would refund its tax, to spend on the emergency building of around 450 new state houses. More>>

ALSO:

Houses And Taxes: Post-Cabinet, Pre-Budget Press Conference

The Prime Minister said that the pre-budget announcements showed that his Government is “investing in a growing economy”. He re-affirmed the National Government’s commitment to lowering personal tax rates but that any such change must fit with the fiscal reality of the time. More>>

ALSO:

Get More From Scoop

 

LATEST HEADLINES

 
 
 
 
 
 
 
 
 
Regional
Search Scoop  
 
 
Powered by Vodafone
NZ independent news