Determining the Toxicity of Thyme Essential Oils against Sitophilus granarius L. and Sitophilus oryzae L. (Coleoptera: Curculionidae) Adults

  • Şeyma YİĞİT BAŞ Black Sea Agricultural Research Institute, Samsun, Turkey
  • Ali Kaan AŞKIN Ondokuz Mayis University, Samsun
  • İslam SARUHAN Ondokuz Mayis University, Samsun
  • İzzet AKÇA Ondokuz Mayis University, Samsun,
  • Yeter KÜÇÜKTOPÇU Ondokuz Mayis University, Samsun
  • Erol BAYHAN Dicle University, Diyarbakır
  • Selime BAYHAN Dicle University, Diyarbakır
  • Fethullah TEKİN GAP International Agricultural Research and Training Center, Diyarbakır
DOI: https://doi.org/10.15835/buasvmcn-ag:2023.0001
Keywords: Grain pest, essential oils, Thyme oil, S. granarius, S. oryzae

Abstract

The present study aimed to determine the effects of three different doses of three thyme essential oils on Sitophilus oryzae (L.) and Sitophilus granarius  (L.) (Coleoptera: Curculionidae). The present study was conducted under controlled laboratory conditions (25°C temperature and 65% relative humidity) in 2020. Various thyme varieties (Origanum majorona (L.), Origanum saccatum P.H. Davis, Thymbra spicata var spicata L. ( Lamiaceae)), cultivated in Diyarbakır province ecological conditions were employed in the study. After the 4th day of the experiment, the highest mortality rates (100%) were observed with the highest doses of T. spicata var spicata and O.  majarona on S. granarius adults, while the mortality rate was 73.75% with O. saccatum. The LC90 values for T. spicata var. spicata, O. majarona, and O. saccatum were 0.9, 0.1, and 1.3 µl/ml respectively. After the 4th day, 100% S. oryzae adult mortality was observed with higher doses of O. majarona (0.5%; 1% v/v), while 1% (v/v) T. spicata var spicata  dose led to a 72.50%, and 1% (v/v) O. saccatum oil dose led to 46.25% mortality.

Author Biographies

Şeyma YİĞİT BAŞ, Black Sea Agricultural Research Institute, Samsun, Turkey

Department of Plant Protection

Ali Kaan AŞKIN, Ondokuz Mayis University, Samsun

Faculty of Agriculture, Department of Plant Protection,

İslam SARUHAN, Ondokuz Mayis University, Samsun

Faculty of Agriculture, Department of Plant Protection

İzzet AKÇA, Ondokuz Mayis University, Samsun,

Faculty of Agriculture, Department of Plant Protection

Yeter KÜÇÜKTOPÇU, Ondokuz Mayis University, Samsun

Faculty of Agriculture, Department of Plant Protection

Erol BAYHAN, Dicle University, Diyarbakır

Faculty of Agriculture, Department of Plant Protection

Selime BAYHAN, Dicle University, Diyarbakır

Faculty of Agriculture, Department of Plant Protection

Published
2023-11-14
Issue
Vol. 80 No. 2 (2023): BULLETIN OF UNIVERSITY OF AGRICULTURAL SCIENCES AND VETERINARY MEDICINE CLUJ-NAPOCA. AGRICULTURE
Section
Research Articles

 Authors who publish with this journal agree to the following terms:

a) Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

b) Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.

c) Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).