Prognoza pojave važnijih štetočina ratarskih biljaka u 2010. godini

The forecasting of the degree of occurrence of major field crops pests in Vojvodina Province has been regularly reported since 1978. By inspection of soil samples from fields where cereals and sugar beet were grown in 2009, the following average number/m2 was recorded: 3.0 wireworms (Elateridae), 4.7 whitegrubs (Scarabaeidae), 0.34 caterpillars of Agrotis spp., 0.65 adults of Bothynoderes punctiventris and 0.1 chrysalides of Mamestra spp. The number of Cotton bollworm (Helicoverpa armigera) decreased in 2009, with fewer injuries on sweet corn, paprika, tomato, tobacco etc. The number and injuries of ECB (Ostrinia nubilalis) were under average and previous year values. The adults of Diabrotica virgifera virgifera had usual population dynamics.Pregledom zemljišta posle gajenja strnina, u jesen 2009. godine, na području Bačke, konstatovano je smanjenje brojnosti žičara i podgrizajućih sovica, ali vrlo značajno povećanje gustine larvi žitnih pivaca. Pregledom starih repišta, utvrđena je vrlo niska brojnost važnijih štetočina šećerne repe - repine pipe i lisnih sovica. To ukazuje na potrebu redovnog praćenja pojave navedenih i drugih štetočina tokom vegetacije u ovoj i narednim godinama, uz praćenje fenofaza razvoja useva i meteoroloških uslova