New Zealand Flatworm

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WG.

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New Zealand Flatworm
« on: October 07, 2007, 22:53 »
mkHenry's post about earthworms on a recent thread reminded me about these blighters ...

The New Zealand Flatworm, Arthurdendyus triangulatus, is a serious predator of earthworm populations and can virtually wipe them out with dire consequences for soil aeration and fertility.

They are more likely to occur in cooler, damper climates so Ireland and West of Scotland see more of them.  They are a huge problem in the Faroe Islands.

If you find them, kill them.  Do not pick them up with bare hands since their slime is irritant to human skin.  Drop them in a bucket of salty water - warm or hot water will kill quicker.

For more info, see http://www.organicgardening.org.uk/factsheets/pc21.php

Have you seen one?  Do tell us when and where.

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GrannieAnnie

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New Zealand Flatworm
« Reply #1 on: October 08, 2007, 08:43 »
I've never seen one David, and we've got loads of earthworms!

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milkman

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New Zealand Flatworm
« Reply #2 on: October 08, 2007, 09:02 »
none in andover yet wg (fortunately), my sister has them in edinburgh though.

a good reason for carefully checking the provenance of any container bought plants so as not to accidentally introduce it to a previously NZFW-free area.
Gardening organically on chalky, stony soil.

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WG.

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New Zealand Flatworm
« Reply #3 on: October 08, 2007, 09:11 »
Quote from: "milkman"
a good reason for carefully checking the provenance of any container bought plants so as not to accidentally introduce it to a previously NZFW-free area.
Good point MM

Bought plants in containers can be rendered 'safe' by placing in the greenhouse on a sunny day.  Allow enough time for the whole root ball to warm up to over 26 degs C.  This can be hastened by using a water bath somewhat above that temperature.  See the link above for details.

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WG.

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New Zealand Flatworm
« Reply #4 on: October 08, 2007, 09:23 »
I'm not trying to be alarmist but there have been occurences in England and Wales too : http://flatworm.csl.gov.uk/images/map_large.gif

I've never found one and certainly hope never to do so.   Got loads of earthworms and a healthy collection of composting worms too.

Be vigilant!

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coatesi

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New Zealand Flatworm
« Reply #5 on: October 26, 2007, 09:11 »
I to haven't seen one in my neck of the woods.
coatesi
A man that gives up a freedom for the sake of security deserves niether.
 Abraham Lincoln.

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WG.

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New Zealand Flatworm
« Reply #6 on: October 26, 2007, 09:14 »
Quote from: "coatesi"
I to haven't seen one in my neck of the woods.
coatesi
They'd be more of a problem in the South Island, I'd imagine.  They'd be killed off by your summer temperatures.

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Aunt Sally

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New Zealand Flatworm
« Reply #7 on: October 26, 2007, 15:05 »
http://flatworm.csl.gov.uk/distlarge.htm

OK WG, we all know Scotland doesn't really exist  :wink:

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WG.

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New Zealand Flatworm
« Reply #8 on: October 26, 2007, 15:06 »
Same map as I included above Aunty  :wink:



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