Assessment of Adiantum incisum, Alternanthera pungens and Trichodesma indicum as Bio-insecticides against Stored Grain Pests

Plants as Bio-insecticides

Authors

  • Zehra Kazmi Microbiology and Biotechnology Research Laboratory, Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi, Pakistan
  • Naila Safdar Microbiology and Biotechnology Research Laboratory, Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi, Pakistan
  • Azra Yasmin Microbiology and Biotechnology Research Laboratory, Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi, Pakistan

Keywords:

Adiantum incisum, Alternanthera pungens, FTIR, insecticidal activity, phytochemistry

Abstract

This study investigated the insecticidal potential of Adiantum incisum Forssk (Pteridaceae), Alternanthera pungens Kunth (Amaranthaceae) and Trichodesma indicum L. (Boraginaceae). Aqueous, methanolic and n-hexane extracts of whole plants (roots, stem and leaves) were prepared using maceration technique. Insecticidal activities of aqueous, methanolic and n-hexane extracts of three plants (10, 20 and 30 mg/mL) were evaluated by impregnated filter paper insecticidal assay. Methanol and hexane extracts of Adiantum incisum gave effective LD50 (15.3 mg/mL) against Callosobruchus chinensis and Sitophilus oryzae
(LD5022 mg/mL) after 24 hours respectively. Present research elucidates the important phytochemicals (alkaloids, saponins and tannins) in three plants by FTIR and good insecticidal activity (LD50 < 25 mg/mL in 24 hours) against Callosobruchus chinensis and Sitophilus oryzae. Current study promotes further investigations for using these plant extracts as anti-feedants, repellents, fumigants and formulation of nontoxic bio-insecticides. 

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Published

2017-06-21

How to Cite

Kazmi, Z. ., Safdar, N., & Yasmin, A. . (2017). Assessment of Adiantum incisum, Alternanthera pungens and Trichodesma indicum as Bio-insecticides against Stored Grain Pests: Plants as Bio-insecticides. Proceedings of the Pakistan Academy of Sciences: B. Life and Environmental Sciences, 54(2), 103–109. Retrieved from http://ppaspk.org/index.php/PPAS-B/article/view/382

Issue

Vol. 54 No. 2 (2017)

Section

Research Articles

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