A research on the pests observed on organically produced blessed thistle plants (Scolymus hispanicus L.) in Seferihisar (İzmir, Turkey) district

Bilge GÜLLÜDAĞ, Zeynep YOLDAŞ
769 247

Abstract


This study aims to cultivate healthy and high quality crops by revealing the pests on Blessed Thistle (Scolymus hispanicus L.) and controlling those species through conducting appropriate pest management programs and decreasing crop losses.
In this study the pests on the blessed thistle plants were determined between August 2013 (sowing stage) and August 2014 (maturation of seed). The trials were conducted in the 6 predetermined fields. The pest counting was carried out from the upper foliar parts of the randomly selected 100 plants, as to represent each field, once a week for the first 3 months and once every two weeks during the following 3 months till to the harvest. Counting was progressed once a month for 10 plants until seeds obtained. During the counting and harvest, the dry and damaged parts of the Blessed Thistle plants were surveyed together with roots to determine contamination situations with the pests.
As a result of the study, 15 species belonging to Orthoptera, Hemiptera, Coleoptera and Diptera have been identified. Within these species Chromatomyia horticola (Goureau), Liriomyza sativae (Blanchard) (Diptera: Agromyzidae) and Brachycaudus helichrysi (Kaltenbach) (Hemiptera: Aphididae) have been evaluated as the most harmful species that need to be focused on in the further studies.

Keywords


Seferihisar, Scolymus hispanicus L., pests, species detected

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DOI: http://dx.doi.org/10.16969/teb.04587