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Global Invasive Species Team listserve digest #069
Sat Sep 30 2000 - 17:24:12 PDT
--CONTENTS--
1. Porcelain berry (New York)
2. Melia and Ligustrum control (Florida)
3. Solarizing Japanese knotweed (Washington)
4. Does anyone use Imazapic (Plateau, Cadre)? (Nationwide)
5. Bidens aristosa (Maryland)
6. Weed meetings (Idaho, Maine)
7. Weed funding (Nationwide)
8. NatureServe web site (Nationwide)
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1. Porcelain berry (New York)
From: Matthew Levy (mlevy(at)tnc.org)
We are beginning a forest and wetland restoration project in a semi-urban
landscape. Invasives management will begin with an acre-and-a-half gap
blanketed with porcelain berry (Ampelopsis brevipedunculata). Information
on the net is limited to descriptions of natural history with brief
discussions of control methods, and gardening related stuff. Does anyone
have experience with controlling/eradicating porcelain berry?
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2. Melia and Ligustrum control (Florida)
From: Doria Gordon (dgordon(at)botany.ufl.edu)
---Doria forwarded some information from Ken Langeland regarding Ligustrum
and Melia control, originally requested in digest #065.
For Ligustrum sinense, use 15% Garlon 4 in oil as a basal bark
application. For Melia azedarach use a basal bark application with 15-30%
Garlon 4. Some people add 3% Stalker (imazapyr) for increased performance
but use appropriate precautions to prevent non-target damage.
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3. Solarizing Japanese knotweed (Washington)
From: Ed Hamerstrom (metasyn(at)aol.com)
I've been trying to work out the most efficient way to eradicate Japanese
knotweed (Polygonum cuspidatum) using plastic sheets. A neighbor who
manage this first cut the plants down in September 1999 and covered the
area, plus a 60 cm (2 foot) border, with black plastic that they left in
place until late summer the following year. The new shoots went sideways
rather than penetrating the plastic, and they exhausted their energy
resources.
I tried to repeat the method. I cut one patch and covered it with black
plastic in mid-July and the new growth has not been able to get through
the plastic so far. Of course new shoots come up outside the edge of the
plastic, but that can be handled by wider margins and/or uprooting the new
growth.
Has anyone experimented with various aspects of this?
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4. Does anyone use Imazapic (Plateau, Cadre)? (Nationwide)
From: Mandy Tu (imtu(at)ucdavis.edu)
Does anyone have experience using imazapic (tradenames Plateau or Cadre)
on wildlands? I am especially interested in obtaining information
regarding potential dissipation mechanisms or information regarding its
longevity (in soils, as well as how often it must be reapplied for good
control of weeds). Also, any information regarding which weeds, at what
application rate(s), etc., would also be appreciated. If you have any
stories, case studies, or know of good studies using imazapic, please
contact Mandy Tu at TNC's Wildland Invasive Species Team (530-754-8891
or imtu(at)ucdavis.edu).
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5. Bidens aristosa (Maryland)
From: Larry Morse (lmorse(at)tnc.org)
---Larry forwarded this information request from Cam MacLachlan. Send your
replies to bamrice(at)ucdavis.edu.
I am currently working on a project in Annapolis to control some large
populations of Rosa multiflora, Polygonum cuspidatum, and Phragmites
australis. The site also contains a good stand of Bidens aristosa (aka
Bidens polylepis). I am not inclined to pursue any control of this plant,
but I was curious to know the experience of others. Has anyone had
experiences with this plant that would suggest that it is a problem?
What control strategies have you used?
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6. Weed meetings (Idaho, Maine)
From: John Randall (jarandall(at)ucdavis.edu)
A)The First International Knapweed Symposium will be held 15-16 March 2001
at the Coeur d'Alene Resort in Coeur d'Alene, Idaho, in conjunction with
the annual Western Society of Weed Science meeting. The purpose of the
Symposium is to present new information on the biology, ecology, and
management of Centaurea species (including spotted knapweed, diffuse
knapweed, squarrose knapweed, Russian knapweed and yellow starthistle).
To learn more, visit the symposium website at:
http://www.sidney.ars.usda.gov/knapweed/
B)Creating Sustainable Landscapes: Plants to Plant, Plants to Avoid. This
symposium for concerned horticulturalists and environmentalists will be
held 14-15 October 2000, Holiday Inn Regency, Bar Harbor, Maine.
For more information on speakers and workshops check
http://www.ume.maine.edu/ced-conf/hort.html
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7. Weed funding (Nationwide)
From: Barry Rice
A)If you are associated with the USGS, or a state or tribal agency, you
may be able to tap into grants relating to understanding and predicting
the effects of invasive species and the susceptibility of habitats to
invasion to prevent, control, and/or mitigate damage to native species and
ecosystems. We have more information about the grants at:
http://tncinvasives.ucdavis.edu/newsnotes.html
B)The USDA is advertising a request for proposals for research relating to
invasive species, i.e. pure science, control, etc. The closing date on
these monster grants (up to $300,000) is 15 November. We have more
information about the grants at:
http://tncinvasives.ucdavis.edu/newsnotes.html
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8. NatureServe web site (Nationwide)
From: Larry Morse (lmorse(at)tnc.org)
The ABI/Heritage web site 'NatureServe' is now publicly available at
http://www.natureserve.org; this includes classification, distribution,
and global, national, and state/province element rank information, to
extent determined and available, for the full vascular flora (native and
non-native) of the United States and Canada (generally following Kartesz
classification), as well as information on animals, natural communities,
and selected lichens and bryophytes. Updates are planned three times a
year.