Toxicological effect of the botanical extract castor oil seeds Ricinus communis and their biochemical activity on the cotton leafworm, Spodoptera littoralis (Boisd.) (Lepidoptera: Noctuidae)

Bakr, Reda F.A.; Al Yousef, Al Bandari F.; H., Hassan S.

doi:10.21608/eajbsc.2015.13707

	Toxicological effect of the botanical extract castor oil seeds Ricinus communis and their biochemical activity on the cotton leafworm, Spodoptera littoralis (Boisd.) (Lepidoptera: Noctuidae)
Egyptian Academic Journal of Biological Sciences. C, Physiology and Molecular Biology
Article 10, Volume 7, Issue 1, September 2015, Pages 99-111 PDF (317.61 K)
Document Type: Original Article
DOI: 10.21608/eajbsc.2015.13707
Authors
Reda F.A. Bakr¹; Al Bandari F. Al Yousef²; Hassan S. H.³
¹-Entomology Department, Faculty of Science, Ain Shames University -Department of Biology, College of Science and Arts, University of Bisha, Bisha, KSA
²Biology Department, Faculty of Science, Princes Nora University, Riyadh, K.S.A.
³Cotton leafworm department, Plant Protection Research Institute, Dokki, Giza, Egypt
Abstract
The present work aimed to studying the effect of ethanol extract of Ricinus commnuis L. seeds on biological and physiological for cotton leafworm Spodoptera littoralis 2^nd and 4^th instar larvae. The results cleared that the larval duration were 17.08 &15.58 days and 10.11 & 9.36 days for treated and untreated of the 2^nd & 4^th instar larvae, respectively. The pupation percent was 60.0 and 96.0 % for treated and untreated of the 2^nd instar larvae and 61.0 and 93.0 for treated and untreated of the 4^th instar larvae. The pupal weight was affected by the botanical extract. The pupal duration was 11.40 and 11.71 days for treated and untreated of the 2^nd instar larvae and it was 11.96 and 12.51 days for treated and untreated of the 4^th instar larvae. The emergence % was 82.0 compare to 97.0 % and 86.0 compare to 98.0 % for the 2^nd & 4^th instar larvae, respectively. On the other hand, the malformed adult was 28.0 and 2.0 % for the 2^nd instar larvae (treated and untreated) and 16.0 & 5.0 % for 4^th instar larvae (treated and untreated), respectively. There are decreasing in fecundity for treatment by botanical extract to S. littoralis 2^nd and 4^th instar larvae. Effect of LC₅₀value of the tested plant extract on the biochemical aspects of the 4^th larval instar of S. littoralis was detected. The biochemical aspects AST, ALT, alkaline and acid phosphatase and total protein activities post treatment were considered throughout the present study.
Keywords
Botanical extract; Ricinus communis biological effect; Biochemical aspects AST; ALT; Alkaline and acid phosphatase; Total protein Spodoptera littoralis

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