Published in Scientific Papers. Series A. Agronomy, Vol. LXV, Issue 1
Written by Emil GEORGESCU, Iuliana VASIAN, Maria TOADER, Lidia CANĂ, Ștefania Maria TÖTÖS, Monica GORGAN
The European sunflower moth [Homoeosoma nebulellum (Den. & Schiff.)] is a pest that can sometimes significantly damage sunflower crops in the south and southeast of Romania. Many studies reveal that the pest attack on cultivated crops, including sunflower, can be higher because of global warming. Also, global warming can have consequences in increasing the pest generation's number in one year or the area in northern latitudes. This study has monitored the fly of the European sunflower moth in sunflower crops from NARDI Fundulea, Calărași County, southeast of Romania, between 2019 and 2021. It has used Delta traps with atraNeb pheromones, produced at "Raluca Ripan" Institute for Research in Chemistry, Cluj-Napoca, Romania. The evolution of the European sunflower moth in sunflower crops at NARDI Fundulea differed in this three-year study. The monitoring of this pest in sunflower crops reveals that first captures were recorded at the beginning of May in 2019 and 2021 and the end of April in 2020. In climatic conditions of the year 2019, at NARDI Fundulea, it has recorded three fly peeks of this pest on 28 May, 26 July, and 19 Augusr. In 2020 the maximum fly peek was registered on 9 June, and a secondary lower peek on 2 September. Similar to 2019, in 2021, it registered three fly peeks on 11 June, 19 August, and 13 September. Higher captures recorded at NARDI Fundulea in September 2019 and 2021 weren’t reported in Romanian literature before and are possible consequences of global warming, but further studies are necessary to elucidate these aspects.
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