Asian Pacific Journal of Tropical Biomedicine
Ovicidal activity of Atalantia monophylla (L) Correa against Spodoptera litura Fab. (Lepidoptera: Noctuidae)
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Supported by Department of Science and Technology, New Delhi (Grant No. SR/SO/AS-03/2004).

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    Abstract:

    Objective: To evaluate the efficacy of Atalantia monophylla (A. monophylla) leaf in different solvent crude extracts and fractions against eggs of Spodoptera litura (S. litura). Methods: Hexane, ethyl acetate and chloroform solvent extracts of A. monophylla leaf and 12 fractions from hexane extract were screened at 5.0%, 2.5%, 1.0% and 0.5% for crude extracts and 1 000, 500, 250 and 125 mg/kg for fractions against the eggs of S. litura for the ovicidal activity. LC50 and LC90 were calculated using probit analysis. Results: Hexane crude extract showed maximum ovicidal activity of 61.94% at 5.0% concentration with a correlation value of r2=0.81, and least LC50 value of 3.06%. Hexane extract was fractionated using silica gel column chromatography and 12 fractions were obtained. Fraction 9 was active which showed maximum ovicidal activity of 75.61% at 1 000 mg/kg with the LC50 value of 318.65 mg/kg and LC90 value of 1 473.31 mg/kg. In linear regression analysis, significant and high correlation (r2=0.81%) was seen between concentration and ovicidal activity of hexane crude extracts and its active fraction. Conclusions: As per our knowledge, this is the first report for ovicidal activity of A. monophylla against S. litura, A. monophylla could be used for the management of S. litura and other insect pests.

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Kathirvelu Baskar, Chellaiah Muthu, Gnanaprakasam Antony Raj, Selvadurai Kingsley, Savarimuthu Ignacimuthu. Ovicidal activity of Atalantia monophylla (L) Correa against Spodoptera litura Fab. (Lepidoptera: Noctuidae). Asian Pac J Trop Biomed 2012; 2(12): 987-991.

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History
  • Received:July 17,2012
  • Revised:August 10,2012
  • Adopted:October 01,2012
  • Online: December 28,2012
  • Published:

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