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Global Invasive Species Team listserve digest #067
Sat Aug 05 2000 - 12:56:54 PDT
--CONTENTS--
1. Using Garlon (triclopyr) near water (Hawai'i)
2. Poopy goats (California)
3. Many Lythrum salicaria questions (Pennsylvania)
4. Useful new weed documents available (Nationwide)
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1. Using Garlon (triclopyr) near water (Hawai'i)
From: Pat Bily (pbily(at)tnc.org)
Dow-Elanco has been trying to get Garlon 3A registered for aquatic use for
years, and there is the possibility for that change (through EPA) sometime
in the near future. Garlon 4, however, because of its petroleum base, is
likely to never get approved for aquatic use. If you obtain a Special Use
Permit through your State Dept. of Agriculture to apply Garlon 3-A in an
aquatic site, that may make it legal. But besides their and EPA's
approval, it is my understanding that no other regulatory agency has the
authority to grant such a non-labeled use. I may be wrong, and let me know
if I am off the wall.
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2. Poopy goats (California)
From: Andrea Pickart (andrea_pickart(at)r1.fws.gov)
Does anyone know an effective way to "purify" a goat of potential weed
seeds before using him on a weed control project? Attempts to feed one
only with commercial grain resulted in some oat plants. I know there are
horse "diapers", what about goats? I need this info as soon as possible as
we are using a goat for a demo at our Invasive Weed Awareness Week in
August.
---Since this query was too good to pass up, I looked around and found at
least one source (http://maylel.freeyellow.com/indexNew.html) that
would be willing to make goat diapers. But anyone else with suggestions
should jump right in!---Barry Rice
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3. Many Lythrum salicaria questions (Pennsylvania)
From: Betsy Lyman (blyman(at)tnc.org)
Pennsylvania has a fen complex which contains federally and state-listed
plants and reptiles. We have both Phragmites australis and Lythrum
salicaria (purple loosestrife) in several of these fens. We have used
groups of volunteers to cut the offending plants (for Phragmites, we cut
in mid-June and mid-September; for loosestrife, we cut in late July/early
August when it is blooming). However, the US FWS does not like the idea of
hordes of volunteers trampling through the fens, since they could easily
harm the nests of the endangered turtle. So we are looking into using
herbicides--i.e. Rodeo (glyphosate).
1)Are there any studies on the effects of glyphosate applications on
turtles?
2)What methods (manual, herbicides, etc.) have you used that were
effective in controlling the weeds, but which have not negatively impacted
the native vegetation? What worked best?
3)Have you done your control work stepwise (i.e. a little bit each year)
or have you done the herbiciding all at once?
4)Have you followed up with any planting of native plants?
Call me with your comments (610-834-1323, ext. 103).
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4. Useful new weed documents available (Nationwide)
From: Barry Rice (bamrice(at)ucdavis.edu)
The Invasive Species Team has been diligently working to put new
documents on our website, including:
New Hydrilla verticillata Species Management Summary
SEE: http://tncinvasives.ucdavis.edu/esadocs/hydrvert.html
Weed Alerts on:
Glyceria maxima (a grass, may occur east of Mississippi River)
Schinus polygamus (a tree, California)
Cenchrus ciliaris (buffelgrass, southern states)
SEE: http://tncinvasives.ucdavis.edu
Nonplant Invader documents:
hemlock woolly adelgid
SEE: http://tncinvasives.ucdavis.edu/esadocs/adeltsug.html
asian longhorned beetle
SEE: http://tncinvasives.ucdavis.edu/esadocs/anopglab.html
red imported fire ants
SEE: http://tncinvasives.ucdavis.edu/esadocs/soleinvi.html
New information on the "Sudden Oak Death" disease
SEE: http://tncinvasives.ucdavis.edu/newsnotes.html