Published in Scientific Papers. Series B, Horticulture, Vol. LXVI, Issue 1
Written by Nicolae GHEORGHIU, Laurențiu BĂLONIU
This paper presents the results recorded following the application in apple culture of different treatment programs with fungicide in order to control Venturia inaequalis, a pathogen recognized for the quantitative and qualitative damages caused. In order to control this pathogen, the chemical measures are necessary in addition to the agro-phytotechnical ones. The efficacy of the new active substance fluopyram, present in Luna Experience, with effect in blocking the pathogen's respiration. The apple variety on which the experiments were carried out is Idared, chosen especially for its sensitivity to the apple scab. The observations took place in 2016 at I.C.D.P. Mărăcineni. The evolution of the meteorological parameters was noted using Watchdog station, the dedicated software and IRFAN VIEW (Freeware). With its help, the dynamics of the infections were graphically highlighted and warnings were elaborated. In the field, observations were made to determine the frequency (F%) and intensity (I%) of the attack, in order to calculate the degree attack (DA%). In the end, the effectiveness of the treatment programs was calculated.
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