Wirkungseffizienz von Fungiziden (Strobilurine, Triazole, Morpholine, Piperidine, Spiroketalamine) hinsichtlich Leistung und biologisch-epidemiologischer Effekte gegenüber pilzlichen Krankheitserregern in Winterweizen

In the years 2000, 2001 and 2002, several fungicides were tested under field conditions. The aim of the trial was to evaluate the efficiency on disease and yield of certain types of fungicides (azole, strobilurine, morpholine, piperidine und spiroketalamine) and combinations thereof. The fungicide treatments were based on the IPM Wheat Model. Recommended (full) and reduced application rates were tested. Prevailing pathogens were Septoria tritici and Erysiphe graminis, less important diseases were Puccinia recondita and Pseudocercosporella herpotrichoides. Regarding diseases and yield, the intense analysis of each fungicide showed for several fungicide combinations synergistic or improved effects. These effects were expressed through the same or a higher level of efficiency with a lower amount of active substance/ha. The biological and yield results confirmed the necessity of a well-devised selection of active substance as well as a fungicide application in the biological sensible phase of the epidemic.