EXPERIMENTAL DATA ON CHEMICAL CONTROL OF MAIN PATHOGENS AND PESTS IN AN APPLE ORCHARD IN NORTHEASTERN ROMANIA IN 2019

"The researches were carried out in 2019 in an apple plantation with Jonathan, Golden Delicious, Starkrimson varieties grafted on MM106 in the fields of the Fălticeni Development Centre belonging to the Development Research Station for Fruit Growing Iași (North Eastern Romania). The climatic conditions in 2019 were favorable for the development of pathogens Venturia inaequalis, Podosphaera leucotricha and Monilinia fructigena. In the conditions of fungicide treatments, the varieties sensitive to apple scab on fruits were Starkrimson and Golden Delicious with an attack degree between 4.5 and 10.5%. Pest species Cydia pomonella and Adoxophyes reticulana showed a frequency of attack of 45% and 15%, respectively in the case of untreated control. The results of the studies highlight the importance of applying phytosanitary treatments correlated with climatic conditions and resistance of varieties to the attack of diseases and pests."