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The Global Invasive Species Team | |
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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) --------------------------------------- 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. --------------------------------------- 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 --------------------------------------- 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). --------------------------------------- 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://tncweeds.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://tncweeds.ucdavis.edu Nonplant Invader documents: hemlock woolly adelgid SEE: http://tncweeds.ucdavis.edu/esadocs/adeltsug.html asian longhorned beetle SEE: http://tncweeds.ucdavis.edu/esadocs/anopglab.html red imported fire ants SEE: http://tncweeds.ucdavis.edu/esadocs/soleinvi.html New information on the "Sudden Oak Death" disease SEE: http://tncweeds.ucdavis.edu/newsnotes.html |
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