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 The IOC’s Treatment Of Russian Sport, And Lone Wolf Terrorism

A blanket ban on Russian athletes would also have exposed the IOC to criticism that its treatment of Russia would have been marked contrast to its treatment say, of the track and field team from Kenya – a country about which the IOC has very similar doping concerns. More>>

ALSO:

Sounds Like A Plan: Auckland Council Receives Unitary Plan Recommendations

A key milestone in New Zealand planning history was reached today when the Independent Hearings Panel delivered the reports containing its recommendations on the Proposed Auckland Unitary Plan. More>>

ALSO:

National Park Expansion: Forests And Coast Of Kahurangi Protected

Five parcels of high value land totalling more than 890 hectares have been formally gazetted as part of the National Park. More>>

ALSO:

PPP Go-Ahead: SkyPath Gets Unanimous Support

Auckland’s SkyPath project has been given the go-ahead to be delivered through a public private partnership, after a unanimous decision at today’s Finance and Performance Committee. More>>

ALSO:

Gordon Campbell: On The Reserve Bank, The UN Shortlist, And Trump

Can there really be there any link between the US presidential elections and yesterday’s RBNZ signals on interest rates and the NZ dollar? Well, maybe. And it would be this: the improving US economy is reportedly putting a tailwind behind the US dollar, and rendering the actions of our Reserve Bank virtually irrelevant. More>>

ALSO:

Gordon Campbell: On What John Key Should Be Asking Joe Biden

No doubt, US Vice-President Joe Biden will be updating Prime Minister John Key on the chances of a TPP vote taking place in the ‘ lame duck’ session of Congress that’s held between the November’s election and the inauguration of a new President in January. More>>

ALSO:

Make NZ Make Again: Greens Will Establish A Minister For Manufacturing

The Green Party announced today that it will establish a Minister for Manufacturing in Cabinet, to better represent the interests of manufacturers and ensure they thrive. The Minister will be inside Cabinet and have responsibility for the long-term interests of the manufacturing sector. More>>

ALSO:

Get More From Scoop

 

LATEST HEADLINES

 
 
 
 
 
 
 
 
 
Regional
Search Scoop  
 
 
Powered by Vodafone
NZ independent news