Skip to Main Content
Tip-Dieback in Young Loblolly Pine PlantationsAuthor(s): David B. South; Patrick Brown; Phillip M. Dougherty; Sonya Olykan; Brett Runion; Adya Singh; Malcolm Skinner
Source: In: Gen. Tech. Rep. SRS-48. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. pg. 574-578
Publication Series: Miscellaneous Publication
PDF: View PDF (58 KB)
DescriptionDieback of loblolly pine (Pinus taeda L.) has been observed in certain intensively managed plantations throughout the South. There are two distinct types of dieback; winter dieback usually appears in February and March while summer dieback appears in July (or later) and increases during the fall. Both types have very high levels of K in terminal shoots. Winter dieback progresses in a "top-down" pattern while summer dieback progresses in a "bottom-up" pattern. Winter-dieback appears to be related to freezes and growth rate as slower-growing wildlings in the plantation almost never exhibit dieback. Freeze injury (brown cambium) is sometimes observed in the stem (at breast-height) and in the terminal shoot. Often the terminal pith turns brown. One fast-growing family, 7-56 from the Coastal Plain in South Carolina, is sensitive to freezes and is prone to tip-dieback. Although winter dieback is most noticeable in plantations, it also occurs on open-grown trees that are growing in weedy, non-fertilized areas. Land managers have grown accustomed to this dieback in rapidly growing plantations that are 2 to years old. On some soils, summer dieback appears to be exacerbated after fertilization with macronutrients. There is currently no consensus as to the cause of this phenomenon but we believe that growth rate, freezes, K, and B may be involved. This paper reviews some of the literature on dieback on pines and proposes some hypotheses to test.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- 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.
CitationSouth, David B.; Brown, Patrick; Dougherty, Phillip M.; Olykan, Sonya; Runion, Brett; Singh, Adya; Skinner, Malcolm. 2002. Tip-Dieback in Young Loblolly Pine Plantations. In: Gen. Tech. Rep. SRS-48. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. pg. 574-578
- Effect of biosolids on a loblolly pine plantation forest in the Virginia piedmont
- Freeze injury to southern pine seedlings
- Fall fertilization of Pinus resinosa seedlings: nutrient uptake, cold hardiness, and morphological development
XML: View XML