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The economics of fungicide use in winter wheat in southern Sweden

Wiik, Lars and Rosenqvist, Håkan (2010). The economics of fungicide use in winter wheat in southern Sweden. Crop protection. 29:2010:1, 11-19
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Official URL: http://dx.doi.org/10.1016/j.cropro.2009.09.008

Abstract

In southern Sweden, fungicide treatment of winter wheat is prevalent and recommended almost routinely against leaf blotch diseases. However, yield increases and hence the resulting net returns from fungicide use are highly variable within and between years. These variations raise questions about whether, when and how fungicides should be used. To help answer these questions, a thorough economic evaluation of fungicide use was carried out, based on results from untreated plots and fungicide-treated plots in trials in farmers’ fields, 1983-2007. Scenarios with varying grain prices and costs of fungicide treatment were evaluated and examined. Doubling and tripling the grain price led to the largest impact on the net return from fungicide treatment, followed by increasing cost of the fungicide. Other costs were of minor importance. The mean net return from fungicide use was no more than 12 €/ha over the 25 years (2008 grain prices and costs used in calculations). Furthermore, the mean net return was negative in 10 years and less than 50% of the entries were profitable to treat in 11 years. Changes over time and changes in controllable factors (e.g. fungicide and cultivar choice, crop rotation, techniques) and uncontrollable factors (e.g. emerging and new diseases, price relations) influenced the profitability of fungicide use. Fungicide use was in fact more profitable (mean net return 21 compared with 3 €/ha) during the latter part of the period (1995-2007) than in the earlier part (1983-1994). Improved decision support systems in a holistic framework based on sound economics are urgently needed.

Authors/Creators:Wiik, Lars and Rosenqvist, Håkan
Title:The economics of fungicide use in winter wheat in southern Sweden
Series/Journal:Crop protection (0261-2194)
Year of publishing :2010
Volume:29
Number:2010:1
Page range:11-19
Publisher:Elsevier
ISSN:0261-2194
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Accepted version
Full Text Status:Public
Subjects:Obsolete subject words > FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING > Plant production > Plant and forest protection
Keywords:plant disease, net-return, profitability, integrated pest management, Septoria tritici
URN:NBN:urn:nbn:se:slu:epsilon-12-14
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-12-14
ID Code:4176
Department:(LTJ, LTV) > Department of Plant Protection Biology
Deposited By: Lars Wiik
Deposited On:02 Dec 2009 00:00
Metadata Last Modified:02 Dec 2014 10:28

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