The results of the plant pathological and infection dynamical examinations showed that the number and occurrence of pathogens in rape are continuously increasing. Based on the results of the regulator rape experiment, it can be stated that Peronospora infection was the strongest in rape (Smart variety, control plot, 1.0 million germs per ha: 27%), but the levels of Phoma and Sclerotinia infection were also relatively strong. In the regulator rape experiment, the level of infection was reduced by the applied regulators (that were also fungicides). No significant difference could be observed between the disease resistance of the hybrid (Vectra) and the variety (Smart). The level of infection was somewhat more moderate in the case of lower plant density.
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