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Soil‐applied fungicides for controlling take‐all in field experiments with winter wheat
Author(s) -
BATEMAN G. L.
Publication year - 1984
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1984.tb03028.x
Subject(s) - fungicide , benomyl , biology , agronomy , sowing , take all , crop , soil treatment , seed treatment , yield (engineering) , botany , fungus , germination , materials science , metallurgy
SUMMARY Soil treatment fungicides were tested against take‐all (Gaeumannomyces graminis var. tritici) in three field experiments with winter wheat. Fungicides were applied as drenches either before sowing in autumn, and incorporated by rotary harrowing, or to the crop in spring. The most effective treatments were autumn applied benomyl (20 kg/ha) and nuarimol (0·55‐4·4 kg/ha). However, the highest nuarimol concentration depressed yield. Benomyl sometimes induced a resurgence of take‐all in the second wheat crop after treatment. Nuarimol had no adverse effects in subsequent crops, and neither fungicide hindered the onset of take‐all decline in a third crop after treatment. The possible value of soil treatment in future control strategies is discussed.