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Global Invasive Species Team listserve digest #101
Mon Mar 18 2002 - 17:07:32 PST
--CONTENTS--
1. Nina Totenberg, Cokie Roberts, and John Randall (Global)
2. Sidewinder tree injectors (Global)
3. Weed Survey (Great Lakes Area, USA)
4. Herbicides with surfactants and other adjuvants (Nationwide, USA)
5. Southeast Exotic Pest Plant Council Symposium (Southeastern USA)
6. Wet-blade mowers (Montana, USA)
7. Native range of Xanthium (Virginia, USA)
8. Hedera helix, soap, and borax (California, USA)
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1. Nina Totenberg, Cokie Roberts, and John Randall (Global)
From: John Randall (jarandall(at)ucdavis.edu)
National Public Radio's reporter Ketzel Levine who specializes in
gardening stories is working on a 4-5 minute piece on ornamental plants
that have proven to be invasive, and it is scheduled for airing on the
Morning Edition news show on the 20th. She interviewed folks from the
"no-ivy league" in Portland, Oregon who manually remove invasive English
ivy and other weeds from parks and natural areas around Portland for part
of the story. She also interviewed me as we walked around a nursery and
spotted species for sale which are invasive in one part of the nation or
another. Listen in Wednesday morning, March 20th, to your local NPR
station and hear for yourself!
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2. Sidewinder tree injectors (Global)
From: Barry Rice (bamrice(at)ucdavis.edu)
Has anyone used injection equipment developed by Sidewinder? Their web
site (http://www.users.bigpond.com/sideject/) has photographs of pretty
interesting gear---basically, they combine a cordless electric drill with
an herbicide dispenser. The firm is in Australia, and doesn't give prices
on their web pages.
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3. Weed Survey (Great Lakes Area, USA)
From: Mariquita Sheehan (msheehan01(at)fs.fed.us)
The Great Lakes Indian Fish and Wildlife Commission and the Invasive Plant
Association of Wisconsin seek your help in developing and prioritizing a
list of non-native invasive plants that threaten native plant communities
in Wisconsin.
Our objective is to develop a prioritized list that ranks each species
from a consistent set of ecological criteria and methods. Although our
focus is Wisconsin, we expect the results of this effort will have wider
regional applications depending on the response rate from neighboring
states.
To learn more about this project, and to download the survey so you can
share your knowledge about your favorite weeds, go to
http://tncinvasives.ucdavis.edu/news/031502.html
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4. Herbicides with surfactants and other adjuvants (Nationwide, USA)
From: Mandy Tu (imtu(at)tnc.org)
As some of you may know, we here at WIST are working hard on an additional
chapter on the use of adjuvants with herbicides, for our Weed Control
Handbook. Unfortunately, there are no available guidelines that suggest
which brand of adjuvant should be used with each herbicide (only types of
adjuvants, such as nonionic surfactants, crop oil concentrates, etc. are
recommended on the herbicide label). So I am looking for any examples of
successful weed control using the herbicides: 2,4-D, clopyralid
(Transline), fluazifop (Fusilade), fosamine ammonium (Krenite), glyphosate
(RoundUp and Rodeo), hexazinone (Velpar, Pronone), imazapic (Plateau),
imazapyr (Arsenal), picloram (Tordon), sethoxydim (Poast), and triclopyr
(Garlon 4).
If you have been successful (or unsuccessful!) at controlling weeds using
one of the above herbicides, please send me information including
specifics such as: species used against, method of application, which
brand and how much herbicide and adjuvant used (% concentration), and
approximate amount of the weed killed (% kill). I would also like to list
YOU as a potential contact person on this table, if you do not mind.
Thanks!! My email is imtu(at)tnc.org, phone is 503-230-0707 x350.
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5. Southeast Exotic Pest Plant Council Symposium (Southeastern USA)
From: Barry Rice (bamrice(at)ucdavis.edu)
Brian Bowen sent me some updated information on the Southeast Exotic Pest
Plant Council Symposium that will take place 3-5 April, in Nashville
Tennessee. You should go. I have posted information about this event at:
http://tncinvasives.ucdavis.edu/meetings.html
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6. Wet-blade mowers (Montana, USA)
From: Celestine Duncan (weeds1(at)ixi.net)
I'm working on a weed plan for Missoula County roadside veg program. I
am interested in finding information on wet-blade mowers and whether any
are practical for roadside invasive plant management. If you have any
info on, or experience with this equipment please let me know.
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7. Native range of Xanthium (Virginia, USA)
From: Jil Swearingen (elytra(at)earthlink.net)
It is important to distinguish between native and introduced cockleburs
lest folks get the impression that they are all bad in all instances.
While Xanthium spinosum (spiny cocklebur) was introduced into the U.S.,
Xanthium strumarium (common or rough cocklebur) is native at least to some
parts of U.S. (I don't have the specific range information on hand). It is
listed as a noxious weed because of its weediness to agriculture and as
invasive in natural areas by some others (NPS, Tennessee Exotic Pest Plant
Council, and Virginia Native Plant Society) in the southwest (Chiricahua
and Dinosaur Natl Monuments) and a few natural areas in the East.
We need to find out the native range of common cocklebur in the U.S. and
remember to treat it different from the introduced spiny cocklebur.
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8. Hedera helix, soap, and borax (California, USA)
From: Andrea Pickart (layia(at)tidepool.com)
Is anyone familiar with the technique of using a diluted solution of Borax
and liquid soap to kill English Ivy (Hedera helix)?