Identification of chemical composition of eugenia aromatica and its bio-efficacy against <em>Sitophilus oryzae</em> (L.) And <em>Tribolium castaneum</em> (Herbst)

Author : Abeer A. Salem

In this investigation plant oil and powder of E. aromatica were evaluated under laboratory
conditions to determine their toxicity, fumigant effect and impact on F1 progeny of S. oryzae and T. castaneum
adults. Essential oil and powder of flower buds obtained from Eugenia aromatica were purified and analyzed by
Gas-Chromatography–Mass Spectrometer (GC-MC). The results obtained showed that the two products of E.
aromatica had good disorders on the all tested parameters. For toxicity and fumigant effect the oil was the premier
compared to powder. In addition, that the two products completely prevented the F1 emergence of the two insects.
In respect of the toxicity and fumigation the T. castaneum was more tolerant than S. oryzae adults. Phytochemical
analysis showed that euegnol (89.62%) was the premier component of essential oil, while euegnol (78.66%),
caryophyllene (6.30%), -a-Terpinyl acetate (1.35%) were the major components for its powder. These findings
suggest application of E. aromatica products as suitable tools as a potential source of insecticides, alternative to
synthetic insecticides or using these products in integrated pest management program against stored product
insects, especially S. oryzae or T. castaneum adults.

Keywords : E. aromatica, oil and powder, insecticidal activity, phytochemical, stored product pests, T. castaneum and S. oryzae.,

Received:1/1/0001 12:00:00 AM; Accepted: 1/1/0001 12:00:00 AM