Orta Anadolu Bölgesi’nde buğdayda Avrupa Sünesi (Eurygaster maura L. Hemiptera: Scutelleridae)’nin neden olduğu ürün kayıpları ve ekonomik zarar eşiğinin belirlenmesi

This study was carried out to determine economic damage threshold of sunn pest ( Eurygaster maura L. Hemiptera: Scutelleridae) in the field conditions in Central Anatolia Region. Revealing the economic damage threshold was based on the damage rate of kernel (rate of consume). According to the results, it was determined that there was no damage of dry-heart leaves caused by overwintered adult. Also, it was revealed that the white spike damage was too low (0.09) to control this pest. It was determined that the quality losses were occured in lower populations compared to quantitative losses caused by new generation adults and nymphs. It was found out that the rate of kernel damage was changed by depending on the pest, number of kernel and number of kernel in spikes in per square meter. When average of 407 spikes in m 2 , 26 number of kernel in spikes and 3.5% of disturbed quality of wheat acceptable upper rate of kernel damage tolerance limit were taken in the conditions of average climate for many years in Central Anatolia Region it was determined that the threshold of economic damage was appropriate as 7 individuals/m 2 . However, it was concluded that it would be appropriate to revise the threshold of economic damage only that year, if necessary, by evaluating conditions of climate which effect yield of wheat until to control sunn pest.