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Journal of Entomology
  Year: 2013 | Volume: 10 | Issue: 4 | Page No.: 170-181
DOI: 10.3923/je.2013.170.181
Control of Spodoptera littoralis (Boisd.) (Lepidoptera:Noctuidae) and Tetranychus urticae Koch (Acari:Tetranychidae) by Coriander Essential Oil
Mohamad Khedr and Hany El-Kawas

Abstract:
This study aimed to evaluate essential oil bioactivity of Corianderum sativum L. on egg stage of Spodoptera littoralis (Boisd.) and Tetranychus urticae Koch in Egypt. Linalool and α-pinene were the basic constituents in the essential oil that recorded (64.103 and 11.964%). The ovicidal activity of obtained oil indicated that according to LC50 values, the younger one day-old eggs of both S. littoralis and T. urticae are more susceptible to coriander essential oil than older ones (three days-old) recording (0.055, 1.565%) and (1.489, 4.759%), respectively. Latent effect with LC50 of coriander oil on the successive stages of both pests resulted from treated eggs were detected. Larval mortality of S. littoralis recorded 20.00 and 16.00%, respectively, in return to zero% for controls. Furthermore, biological parameters were affected due to essential oil treatment that both larval and pupal duration as well as incubation period elongated compared to control while the reverse was true in case of pupation and pupal weight. Additionally, biological aspects of T. urticae, caused shortest incubation period of both tested egg-ages comparing to its control, treated 24 h old eggs caused elongation in longevity and life span of female compared to control, in both treated tested egg-ages. Finally results demonstrated that, highly significant reduction in the total number of eggs/female for 24 h old eggs was recorded 60.067 eggs, control gave 87.00±6.93 eggs. Insignificant reduction was detected as affected by treated 72 h old eggs laid 114 eggs, control laid 117 eggs.
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How to cite this article:

Mohamad Khedr and Hany El-Kawas, 2013. Control of Spodoptera littoralis (Boisd.) (Lepidoptera:Noctuidae) and Tetranychus urticae Koch (Acari:Tetranychidae) by Coriander Essential Oil. Journal of Entomology, 10: 170-181.

DOI: 10.3923/je.2013.170.181

URL: https://scialert.net/abstract/?doi=je.2013.170.181

 
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