UKTC Archive

Re: worms

Subject: Re: worms
From: Michael Richardson
Date: Nov 30 2021 18:49:31
Worms were removed from northeastern North America during the last ice
age.  Landscapes have developed since without worms.

Most of our worms in Ontario are European in origin with new genera
appearing recently (jumping worms).

There have been trials to remove earthworms but they are small and not
applicable across a large part of a continent.  We also have very little
worm research here.

This Google Streetview (
https://www.google.ca/maps/@43.7773763,-79.1790002,3a,75y,149.11h,108.53t/data=!3m6!1e1!3m4!1slo7dcc1GSocTtybPJlJphQ!2e0!7i16384!8i8192)
shows a slope that will be largely devoid of leaves in a few months as the
worms gobble them up.  PvW you should know this slope, it is not far from
the motel property we inventoried 20 years ago.

One of the strangest things you will hear in areas of high worm
infestations is the sound of worms pulling organic matter down holes and
into cavities they have created.

One issue we have is that "earthworms are nature's ploughmen (thanks
Darwin)" has led to the spread of earthworms and use in agriculture and
landscaping.  Teachers often do not realize that there is a huge
difference between here and the American south in terms of the effects of
glaciation.

I think that this is a problem beyond our abilities.

M


Michael Richardson B.Sc.F., BCMA
Ontario MTCU Qualified Arborist
Richardson Tree Care
Richardsontreecare.ca
613-475-2877
800-769-9183

  <http://www.richardsontreecare.ca/images/Tree_Doc_logo_email.png>



On Tue, Nov 30, 2021 at 1:31 PM Hare, Gareth <Gareth.Hare@xxxxxxxxxxxx.gov.uk>
wrote:


That would never work now in Toronto. Non-native earthworms (they all are
here) have managed to destroy the organic (humus) layer in forests. THis
is having an effect now on regeneration, soil and slope stability, nutrient
cycling, etc.


Michael Richardson B.Sc.F., BCMA
Ontario MTCU Qualified Arborist
Richardson Tree Care
Richardsontreecare.ca
613-475-2877
800-769-9183



That’s interesting Michael (although alarming!). Is there anything being
done or planned to combat the creatures?

Kind regards

Gareth



Disclaimer

This e-mail and any attachment(s), is confidential and may be legally
privileged.  It is intended solely for the
addressee.  If you are not the addressee, dissemination, copying or use of
this e-mail or any of its content is
prohibited and may be unlawful.  If you are not the intended recipient
please inform the sender immediately and
destroy the e-mail, any attachment(s) and any copies.

All liability for viruses is excluded to the fullest extent permitted by
law.  It is your responsibility to scan or
otherwise check this e-mail and any attachment(s).

Unless otherwise stated (i) views expressed in this message are those of
the individual sender (ii) no contract
may be construed by this e-mail.

Emails may be monitored and you are taken to consent to this monitoring.

The Council is committed to handling any personal information provided to
us by you in accordance with the law.
For further general information about this and the way we use your
information visit https://www.lichfielddc.gov.uk/privacy



--
The UK Tree Care mailing list
To unsubscribe send mailto:uktc-unsubscribe@xxxxxx.tree-care.info

The UKTC forum is supported by Bosky Trees arboricultural consultancy and
Stockholm Tree Pits
https://www.stockholmtreepits.co.uk




-- 
The UK Tree Care mailing list
To unsubscribe send mailto:uktc-unsubscribe@xxxxxx.tree-care.info

The UKTC forum is supported by Bosky Trees arboricultural consultancy and
Stockholm Tree Pits
https://www.stockholmtreepits.co.uk