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 Bill English, Abroad

Looks like you need to get the blurb yourself. Probably best to do that irrespective, actually.If David Cameron was the closest thing John Key had to a political mentor, their successors also share a whole lot in common.

Theresa May and Bill English were both propelled into the top jobs as the result of unexpected resignations, and without much in the way of credible competition from their colleagues. Neither have yet been given a mandate to govern by the electorate although – in both countries – the Labour opposition is in less than robust shape. More>>

 

Pike River: Labour Bill To Override Safety Act For Mine Entry

“Bill English has been hiding behind the legal excuse that any attempt to re-enter the mine to recover the bodies might place the mine’s owner, Solid Energy Limited, and its directors in breach of the Health and Safety at Work Act 2015." More>>

ALSO:

Gordon Campbell: On Populism And Labour 2017

For many people on the centre-left, populism is a dirty word, and a shorthand for the politics of bigotry. In this country, it has tended to be equated with the angry legions of New Zealand First. Who knew they were not just a reactionary spasm, but the wave of the future? More>>

Oxfam: 30% Of NZ Owns Less Wealth Than Our Two Richest Men

The research also reveals that the richest one per cent have 20 per cent of the wealth in New Zealand, while 90 per cent of the population owns less than half of the nation’s wealth. The research forms part of a global report released to coincide with this week’s annual meeting of political and business leaders at the World Economic Forum in Davos, Switzerland. More>>

ALSO:

Hospitals: Resident Doctors Set To Strike Again

Despite discussions between the DHBs and NZRDA over safer hours for resident doctors progressing during the last week, the strike planned for next week appears set to proceed. More>>

ALSO:

Not So Super Fund: More Burning Ethical Questions For Steven Joyce

Greens: Radio New Zealand reported this morning that the New Zealand Superfund has $77 million invested in 47 coal companies that the Norwegian Government’s Pension Fund – the largest sovereign fund in the world – has blacklisted. More>>

Activism: Greenpeace Intercepts World’s Biggest Seismic Oil Ship

Greenpeace crew have made contact with the world’s biggest seismic oil ship after travelling 50 nautical miles on two rigid-hulled inflatables off the coast of Wairarapa... Greenpeace radioed the master of the Amazon Warrior to deliver an open letter of protest signed by over 60,000 New Zealanders. More>>

ALSO:

Gordon Campbell: Why Tax Cuts In 2017 Would Be A (Proven) Bad Idea

Ever since the world fell prey to the mullahs of the free market in the 1980s, no amount of real world evidence has managed dispel one key tenet of their economic faith. Namely, the idea that if you cut income taxes and taxes on small business, a wave of individual enterprise and entrepreneurial energy will thus be unleashed, profits will rise and – hey bingo! – the tax cuts will soon be paying for themselves ... More>>

Get More From Scoop

 

LATEST HEADLINES

 
 
 
 
 
More RSS  RSS
 
 
 
Regional
Search Scoop  
 
 
Powered by Vodafone
NZ independent news