Investigations on the Distribution, Morphology and Some Bioecological Aspects of Cicadatra hyalina (Fabricius, 1798) (Hemiptera: Cicadidae) Occurring in Cherry Orchards in İzmir Province of Turkey

This study was conducted to determine the distribution, some morphological and bioecological aspects of Cicadatra hyalina (Fabricius, 1798) (Hemiptera: Cicadidae) that damage on cherry trees i n İ zmir province of Turkey in 2005-2008. Visual inspection was done in an orchard in Kemalpaşa (Yukarıkızılca), İzmir, Turkey. Besides visually counting the adult, we took a count of the nymphs hatched at the base of the trunk and under canopy of 10 trees in that orchard. In addition, 10 strongboxes (registers) were put under 10 trees in this orchard and checked periodically to adult emergence. According to the results of these studies, the first adults of C. hyalina started to appear in the second week of june. The flying period began after the first week of june and finished at the third week of august. Flight duration of this species is about 50-67 days. The maximum adult emergence occurred between last june and mid of july. Population density was changed from year to year. The most of adults observed in 2005 (26.6 nymph skin/tree) and least in 2008 (7.7 nymph skin/tree). Adults were observed chiefly on cherry trees and different fruit trees such as olive, peach, vineyard, apricot and herbaceous plants such as Sorghum halepense L. and Chenopodium album L. Females lay their eggs on the a year twigs of cherries, and other fruit trees and stem of herbaceous plants and have preference for the most slight twigs. Eggs began to hatch at the end of july. It was determined that this species left thier eggs on plants such as cherry, mahaleb cherry, olive, peach and Sorghum halepense L. and emerged after 43-56 days