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Application of fungicides and urea for control of ash dieback

Tine Hauptman (1)   , Franci Aco Celar (2), Maarten de Groot (1), Dušan Jurc (1)

iForest - Biogeosciences and Forestry, Volume 8, Issue 2, Pages 165-171 (2015)
doi: https://doi.org/10.3832/ifor1272-008
Published: Aug 13, 2014 - Copyright © 2015 SISEF

Research Articles


Ash dieback is caused by a highly pathogenic fungus Hymenoscyphus pseudoalbidus (anamorph Chalara fraxinea). Possibilities for disease control are limited, and treatment of fallen leaf debris to prevent sporulation of the pathogen is one of the possible options to control the disease. In some cases chemical treatments could be used, but data on effective chemical agents for control of the ash dieback are lacking. The purpose of this study was to examine the effect of different chemical fungicides and urea on the pathogen. Out of eight tested fungicides, mycelial growth in Petri plates as well as development of H. pseudoalbidus apothecia on ash leaf petioles were most efficiently inhibited by carbendazim. Urea also proved to be effective in prevention of apothecial formation. In addition to inhibition of the pathogen, urea accelerates the degradation of treated leaf debris. Therefore, the use of urea for treatment of infected ash leaf debris could be more effective than the use of fungicides and also more environmentally acceptable.

  Keywords


Hymenoscyphus pseudoalbidus, Chemical Control, Mycelial Growth, Leaf Petioles, Apothecia Formation

Authors’ address

(1)
Tine Hauptman
Maarten de Groot
Dušan Jurc
Department of Forest Protection, Slovenian Forestry Institute, Večna pot 2, SI-1000 Ljubljana (Slovenia)
(2)
Franci Aco Celar
Agronomy Department, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, SI-1000 Ljubljana (Slovenia)

Corresponding author

 
Tine Hauptman
tine.hauptman@gozdis.si

Citation

Hauptman T, Celar FA, de Groot M, Jurc D (2015). Application of fungicides and urea for control of ash dieback. iForest 8: 165-171. - doi: 10.3832/ifor1272-008

Academic Editor

Alberto Santini

Paper history

Received: Feb 20, 2014
Accepted: May 07, 2014

First online: Aug 13, 2014
Publication Date: Apr 01, 2015
Publication Time: 3.27 months

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