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Pakistan Journal of Biological Sciences
  Year: 2008 | Volume: 11 | Issue: 4 | Page No.: 546-552
DOI: 10.3923/pjbs.2008.546.552
 
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Toxical Effect of Peganum harmala L. Leaves on the Cotton Leaf Worm, Spodoptera littoralis Boisd and its Parasitoids Microplitis rufiventris Kok

Mourad Shonouda, Salah Osman, Osama Salama and Amal Ayoub

Abstract:
The leaf extract and its fractions of Peganum harmala L. have shown pronounced mortal effect, decreased percent pupation and adult emergence of the cotton leaf worm, Spodoptera littoralis Boisd. The third instar larvae fed for two days on treated leaves were more susceptible to plant extract and its ethyl acetate and chloroform fractions. The active lowest concentration (5%) of the leaf fractions of P. harmala showed significant effect on the percentage of emerged adult parasitoids, Microplitis rufiventris Kok. GC/MS analysis showed the major constituent in ethyl acetate fraction was (23S) ethylcholest-5-en-3 beta-ol (28.04%) while those of chloroform fraction were hydroxyfuranocoumarin (Bergaptol) (15.68%), piperidinone (12.08%), thymol (11.82%), phosphoric acid, tributyl ester (9.80%) and trimethyl-nonenol (9.66%). The medicinal plant P. harmala could be carefully applied in integrated pest management due to its strong effect on cotton leaf worm pest.
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How to cite this article:

Mourad Shonouda, Salah Osman, Osama Salama and Amal Ayoub, 2008. Toxical Effect of Peganum harmala L. Leaves on the Cotton Leaf Worm, Spodoptera littoralis Boisd and its Parasitoids Microplitis rufiventris Kok. Pakistan Journal of Biological Sciences, 11: 546-552.

DOI: 10.3923/pjbs.2008.546.552

URL: https://scialert.net/abstract/?doi=pjbs.2008.546.552

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