Distribution, Density and Swarming Periods of Homoeosoma nebulellum (Den. & Schiff.) Harmfull on Sunflower in Ankara Province

In the sunflower, which is an important oilseed and confection plant (Helianthus annuus L.), a study was conducted in 2013-2014 Ankara province order to determine distribution density of Homoeosoma nebulellum (Den. & Schiff.) causes lost terms quality quantity. The data were obtained from surveys Ayaş, Bala, Beypazarı Kalecik districts where sunflower found intensively. same period, adult flights district observed by delta-type traps containing sexual attractive pheromone period that pest harmful determined. As result study, H.nebulellum recorded as 94.37-100% widespread Ayas, Kalecik, Bala districts. 2013, infestation rate fields determined 4.77%, 7.51, 4.76 1.09 districts, respectively. 2014, decreasing rates except 3.73%, 6.45, 3.15 1.40, infestated 8.08, 9.93, 2.75 6.56 piece larvae/infestated it 2.87, 5.66, 3.08 2.25 larvae / H. causing yield loss feeding newly formed seeds. By monitoring swarming periods European moth, seasonal situation critical for management with pheremon traps.