Disease management of spring barley with reduced doses of fungicides in Northern Ireland

Trials over 8 years in Northern Ireland with a range of fungicides, applied at a range of doses, to spring barley showed a reduction in disease and increase in green leaf area and yield, particularly from 1993 to 97, when mildew ( Blumeria graminis f.sp. tritici) was the main disease. Fungicides in...

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Bibliographic Details
Published inCrop protection Vol. 22; no. 1; pp. 79 - 85
Main Authors Mercer, P.C, Ruddock, A
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 2003
Subjects
Blumeria graminis
Fungicides
Hordeum vulgare
Leaf blotch
Mildew
Reduced doses
Rhynchosporium secalis
Spring barley
Blumeria graminis
Rhynchosporium secalis
Hordeum vulgare
Fungicides
Reduced doses
Spring barley
Mildew
Leaf blotch
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Summary:Trials over 8 years in Northern Ireland with a range of fungicides, applied at a range of doses, to spring barley showed a reduction in disease and increase in green leaf area and yield, particularly from 1993 to 97, when mildew ( Blumeria graminis f.sp. tritici) was the main disease. Fungicides in those years had considerable effect even at low doses. In the latter years of the project, there was relatively little mildew or leaf blotch ( Rhynchosporium secalis) and the effect of fungicides was less. Results generally indicate that the potential of disease resistance of cultivars should be fully exploited and prophylactic spraying at present is unlikely to be profitable.
ISSN:0261-2194
1873-6904
DOI:10.1016/S0261-2194(02)00114-X