BIO-EFFECTS OF CINNAMON (Cinnamomum zeylanicum) BARK EXTRACTS AGAINST Rhizopertha dominica (F.) (COLEOPTERA: BOSTRICHIDAE) | ||||
| Journal of Plant Protection and Pathology | ||||
| Article 8, Volume 31, Issue 1, January 2006, Page 473-480 PDF (2.2 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jppp.2006.235159 | ||||
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| Authors | ||||
| Salwa M. S. Ahmed,; M. S.A. Gharib; S. A. Shemais | ||||
| Plant Protection Research Institute, Dokki, Giza, 12618, Egypt. | ||||
| Abstract | ||||
| Ceylon cinnamon bark extracts were evaluated under constant conditions against Rhizopertha dominica adults and the effective lethal concentrations (LC50 and LC95) of each extract were calculated. Effects of LC50 and LC95 on both reduction of progeny (%) and weight loss (%) were inve stigated. Also the persistent effect of LC95 of the tested extracts was done weekly on both adult mortality (%) and grain viability (%). Results showed that percent adult mortality increased with increase of the concentration and exposure time. Chloroform extract was the most effective than other extracts, since its lethal effective concentration (LC50) reached a minimum value of 1.8 mllKg, while the acetone extract was the least effective which its LCoO was 3.57 mllKg. All tested extracts significantly reduced adult progeny (%) and weight loss (%) compared to control. Tested extracts persisted effective on adult mortality (%) for two months and droppsd suddenly thereafter for all extracts. Tested extracts slightly affected germination (%) of wheat treated with LC95 value either initially or at end of the storage compared to control. Cinnamon extracts could be used as wheat protectant for wheat from R. dominica attack. | ||||
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