Dear Mr Hill,
A colleague with Union College sent me your list-serve post (below). The Albany Pine Bush Preserve Commission has restored approximately 300 acres of mature closed-canopy black locust to native prairie openings. We have had great success treating locust re-sprouts with glyphosate via a cut stem application by staff one and/or two years after the initial treatment. There are typically no native plants beneath a closed canopy stand of black locust so on larger sites (>20 acres) we have also utilized private contractors and ultra-low volume foliar applications of Krenite "S"( active ingredient Fosamine) and Arsenal (active ingredient Imazapyre) at the tail end of the growing season. Our Stewardship Director could give you more details on concentrations and application rates if you're interested and he is copied above. Sincerely, Neil A. Gifford Conservation Director [email protected] <mailto:[email protected]> (518) 456-0655 x1214 (Office) (518) 522-0361 (Mobile) www.albanypinebush.org <http://www.albanypinebush.org/> Albany Pine Bush Preserve Commission 195 New Karner Rd Albany, NY 12205 Partners in action, protecting and managing the Albany Pine Bush. -----Original Message----- From: Ecological Society of America: grants, jobs, news [mailto:[email protected]] On Behalf Of JASON M. HILL Sent: Wednesday, April 14, 2010 6:46 PM To: [email protected] Subject: [ECOLOG-L] Need Help With Black Locust Control in Grasslands Hello Everyone, I am looking to get some advice on managing black locust regeneration. I am studying grassland bird communities on reclaimed surface mines in Pennsylvania. As part of a manipulative research project, we cleared 100 plus acres of black locust trees (most of which were planted about 3 meters apart). The trees (1-5 inches DBH) were chopped with a hydro-axe down to the stump during the winter in order to protect grass cover and soil from being destroyed by the machines. The locust are, of course, going to resprout from the roots sometime this summer. We're thinking about hitting the new growth with some type of herbicide in August (after our data collection is over for this summer). We could delay herbicide application until the fall if needed. We want to minimize impact on the grass and forbs. There's a lot of information on the web, but most of it is for ideal situations and best practices. Our situation, and timing of our management efforts, was dictated by financial and logistical constraints. Does anyone out there have any experience controlling black locust regrowth over a large area or in a situation similar to ours? I would appreciate any and all feedback and suggestions about different herbicides and timing and method of application pertinent to our situation. Thank you, Jason Hill 'Nothing in biology makes sense, except in the light of evolution' --Theodosius Dobzhansky-- Jason Hill 221 Forest Resources Building University Park, PA 16802-4705 Office: 814-865-0772 Fax: 814-863-4710 Ecology Program - PhD Candidate Pennsylvania State University School of Forest Resources
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