Uşak İlinde Kışlamış Süne [(Eurygaster spp.) (Hemiptera: Scutelleridae)] Ergin Populasyonu ve Yumurta Parazitlenmesi Üzerine Sürvey

Abstract

Sunn Pest, Eurygaster spp. (Hemiptera: Scutelleridae), is the most important pest being able to cause significant losses on wheat yield and quality in Turkey. To monitor the overwintered adult population, this study was carried out in 41 sites in 19 regions during two consecutive years. Sampling was done in April and May in both years. During the study, the economic threshold, which is 0.8 overwintered adults per square meter, was determined only in Yesildere region, and the number of adults in other regions remained quite low. Moreover, it was detected that the parasitization rates in the regions where egg masses were collected varied between 48.2% and 70.1%. As a result of this study, it was found that the number of adults was higher in regions with high altitudes and close to overwintering areas. Therefore, more attention should be paid to survey studies in similar regions.