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Effect of eyespot control on the yield of winter wheat and eyespot damage in Belgium


  • Cavelier, M. & Couvreur, L. (1995). Effect of eyespot control on the yield of winter wheat and eyespot damage in Belgium. Agronomie, 15: (2),
Type Journal Article
Year 1995
Title Effect of eyespot control on the yield of winter wheat and eyespot damage in Belgium
Journal Agronomie
Recnumber 27
Volume 15
Issue 2
Endnote Keywords plant diseases|plant pathogens|plant pathogenic fungi|cereals|winter wheat|chemical control|plant disease control|fungicides|wheat|control|yield losses|chlorothalonil|prochloraz|crop losses|plant pathology|
Abstract In Belgium and most cereal-growing countries of Western Europe, eyespot (Pseudocercosporella herpotrichoides) is no longer considered as highly damaging to winter wheat, but still remains a major problem in decision making on fungicide application at the stem elongation stage. Users often associate increases in yield following chemical treatment with fungicide activity against eyespot even though the most commonly used fungicide prochloraz is also effective against Septoria tritici [Mycosphaerella graminicola] blotch. Investigations were carried out in 1994 using prochloraz on 6 winter wheat cultivars to discriminate the respective effects of the 2 diseases on yield under conditions of artificial inoculations. Low yield losses were associated with P. herpotrichoides. The yield increases obtained with prochloraz applications at the first node and last leaf stages mainly resulted from the control of M. graminicola in both eyespot-inoculated and uninoculated plots. Both chlorothalonil and a mixture of chlorothalonil and prochloraz resulted in higher yield increases in the eyespot-inoculated plots. It is concluded the eyespot control is only economically advisable if associated with control measures against M. graminicola.
Notes Cited Reference Count: 26 ref. Journal article French
Author address CRA-Gembloux, Station de Phytopathologie, Chemin de Liroux, B-5030 Gembloux, Belgium.
Fichier
Lien ://19952311567
Authors Cavelier, M. & Couvreur, L.