How Do You Rate This Publication?       

Title:	Stand dynamics of an old-field longleaf pine stand following herbicide application, poor survival, and subsequent replanting
Author(s):	Dickens, E. David; McElvany, Bryan C.; Moorhead, David J.; Torrance, Philip R.; Crosby, P. Mark
Date:	2010
Source:	In: Stanturf, John A., ed. 2010. Proceedings of the 14th biennial southern silvicultural research conference. Gen. Tech. Rep. SRS–121. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. 219-222.
Station ID:	GTR-SRS-121
Description:	A study area in Emanuel County, GA installed to discern the effectiveness of various herbicides over newly planted (December 1999) longleaf pine (Pinus palustris Mill.) seedlings on an old-field site. Survival and height growth data after herbicide treatment indicate that the early (April 7, 2000) Oust+Velpar L herbicide treatment gave greater initial survival and height growth compared to nine later herbicide treatments (May 9, 2000) or an untreated control. First year survival ranged from 90 percent with the April Oust+Velpar L treatment to 40 to 63 percent with the May herbicide treatments. All dead seedlings spots that were flagged and numbered were replanted in December 2000 in the May treatments and control plots. After six growing seasons, mean longleaf survival, d.b.h., height, and green weight per acre were greater with the April application. Sixth year survival ranged from 79 percent in the April application, 53 to 67 percent for the May herbicide treatments, and 41 percent for the control. In the May treatments, originally planted trees had significantly larger heights and diameters than the replanted trees. Original planted trees had an average diameter of 3.4 inches and height of 16 feet. Replanted trees had an average diameter of 1.9 inches and height of 9 feet. During the spring of 2000, rainfall patterns were well below normal. It appears that the early April herbicide treatment allowed for the seedlings to survive this critical dry period. These results indicate that substantial longleaf establishment costs can be saved with an earlier herbicide application under severe spring drought conditions on upland well drained soils.
	View and Print this Publication (69.44 KB)
Publication Notes:	We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information. This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain. Our on-line publications are scanned and captured using Adobe Acrobat. During the capture process some typographical errors may occur. Please contact the SRS Webmaster, srswebmaster@fs.fed.us if you notice any errors which make this publication unuseable. You may send email to pubrequest@fs.fed.us to request a hard copy of this publication. (Please specify exactly which publication you are requesting and your mailing address.)
	Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility