Asghari, Javad (2009) Insecticidal activities of essential oils of six wild plants species on Tribolium castaneum and Callosobruchus maculatus. Masters thesis, University of Zabol.
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Abstract
In regard to the invasion of various food commodities by insects and destructive affect of chemical pesticides, Essential oils are among the best known substances tested against stored products pest. Insecticidal effects of essential oils from Acroptilon repens ،Ferula asafetida, Achillea wilhelmsii ،, Artemisia sp., Mentha longifolia, Pulicaria gnaphalodes that were collected from south khorasan province, tested on two stored product insects, Callosobruchus maculatus F. (Col: Bruchidae) and Tribolium CastaneumHerbst (Col: Tenebrionidae). For extracting essential oils from these plants, dry ground leaves were subjected to hydrodistillation using a modified Clevenger-type apparatus. The mortality of 1- 7 days old adults of C. maculatus and T. castaneum increased with concentration from 71.43 to 428.57 mL/L air and with exposure time from 3 to 24 h. A concentration of 71.43 mL/L and an exposure time of 24 h were sufficient to obtain more than 90% kill of the insects in all states. Callosobruchus maculatus was significantly more susceptible T. castaneum. The estimated LC50 values for C. maculatus after exposing to essential oil from M. longifolia were 2.05 mL/L, A. wilhelmsii were 2.24 mL/L and P. gnaphalodes were 1.6 mL/L, and for T. castaneum after exposing to essential oil from M. longifolia were 13.05 mL/L, A. wilhelmsii were 10.02 mL/L, P. gnaphalodes were 257.96 mL/L. The essential oils have significantly repelled insects. Mentha Essential oils were more repellent to C. maculatus than other Essential oils. The most constituent identified in the M. longifolia oil contained Piperitenon (43.92%), Tripal (14.3%), Oxathiane (9.27%), and Dl lilmonen (4.28%), A. wilhelmsii oil contained Cineole (13.03%), Caranol (8.26%), Alpha pipene (6.50%), and p-cymene (6.01%) and P. gnaphalodes oil contained Chrysanthnyl Acetat (22.38%), 2L -4L-Dihydroxy Eicosane (18.5%), Verbenol (16.59%), Dehydroaromadendrene (12.54%) and Beta pinen (6.43%). These results suggested that this Essential oil may have potential as a control agent against C. maculates and T. castaneum.
| Item Type: | Thesis (Masters) |
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| Uncontrolled Keywords: | Acroptilon repens, Ferula asafetida, Achillea wilhelmsii, Artemisia sp.،, Mentha longifolia, Pulicaria gnaphalode, Botanical insecticides, Essential oils, Bioassay, Reppellency, and Toxicity, probit |
| Subjects: | Q Science > QL Zoology |
| Depositing User: | admin admin1 admin2 |
| Date Deposited: | 22 Jun 2016 05:20 |
| Last Modified: | 22 Jun 2016 05:20 |
| URI: | http://eprints.uoz.ac.ir/id/eprint/827 |
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