Skip Navigation


Forestry Advance Access originally published online on March 2, 2006
Forestry 2006 79(2):177-184; doi:10.1093/forestry/cpl008
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow All Versions of this Article:
79/2/177    most recent
cpl008v1
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrow Search for citing articles in:
ISI Web of Science (4)
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Esen, D.
Right arrow Articles by Sarginci, M.
Right arrow Search for Related Content
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© Institute of Chartered Foresters, 2006. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

Controlling Rhododendron spp. in the Turkish Black Sea Region

Derya Esen*, Oktay Yildiz, Semsettin Kulaç and Murat Sarginci

Düzce Orman Fakültesi (Faculty of Forestry), Abant Izzet Baysal Üniversitesi, Konuralp Yerleskesi, Konuralp, 81620 Düzce, Turkey

* Corresponding author. E-mail: guzelfethiye{at}yahoo.com

Rhododendrons (Rhododendron ponticum L. and Rhododendron luteum Sweet) dominate the understories of the mesic forests of the Black Sea Region (BSR) of Turkey. They dramatically reduce forest growth and regeneration and local plant diversity. This paper reports the results of a large rhododendron control experiment established on two different sites in the western and eastern BSR of Turkey 5 years after treatments (YAT). The paper also presents the second-year results of a second experiment in which the foliar herbicides of the previous experiment were tested on rhododendron at much lower rates on a western BSR site. Five YAT, grubbing and foliar spraying were still the best rhododendron control methods in the first experiment. Cut-stump spraying provided an intermediate level of woody control. Hand-cutting was ineffective on R. ponticum and did not significantly differ from the control treatment in rhododendron basal area 5 YAT. The performance ratings of foliar triclopyr ester and imazapyr for woody control in both experiments were rate dependent. At high rates ranging between 2.6 and 5.8 kg ae ha–1, foliar imazapyr controlled both rhododendron species significantly better than foliar triclopyr ester in the first experiment, suggesting enhanced imazapyr translocation to the roots. Some off-target damage was observed in the beech overstory for imazapyr at high rates. The performance ratings of these foliar herbicides were significantly reversed in the second experiment 2 YAT, where much lower rates were used (0.3–2.0 kg ae ha–1) than in the first experiment. Insufficient imazapyr accumulation in rhododendron roots might account for the poor impact of this herbicide. No beech damage was apparent from any of the herbicides in the second experiment. The low-rate foliar triclopyr ester is recommended for effective and cost-efficient rhododendron control.

Accepted 22 March 2005.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?




Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.