Abstract :

The efficacy of five plant extracts, Lantana camara, Ruta chalepensis, Rhazya stricta, Heliotropium bacciferum and Marrubium vulgare against Tribolium confusum ware investigated by admixing plant extract with wheat grains. Mortality (%) increased with increasing concentrations, exposure periods and varying from plant to plant. L.camara and R. chalepensis induced the highest percent of mortalities (95.4 and 93.8%) at 500 ppm after 6 days of exposure respectively, for T. confusum, followed by Rh. Stricta, M. vulgare and H. baccifirum. (91.4, 84.5 and 83,3%) respectively. The lowest LC50s were for L. camara and R. chalepensis (114.61 and 117.78 ppm), after 6 days from exposure respectively, followed by Rh. Stricta, M. vulgare and H. bacciferum (175.48, 251.99 and 309.67 ppm respectively. The rate of repellency increased with increase of dose level.  L. camara had the lead in repellent action where repellent percentage was 100 % at 500 ppm followed by R. chalepensiswith, 91%. The repellency rates of other plant extracts were between 50.22 -66.54 at the same concentration which had a moderate repellent action. Statistical analysis showed that all plant extracts revealed significant deference except between H. bacciferum and M. vulgare. Among all the plant extracts L.camara and R. chalepensi were generally more toxic than other plant extracts against T. confusum.

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Keywords :

efficacy., Mortality, Plant extracts, Stored food products, Tribolium confusum

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References :

1. Christain Olsson, PO., Camilla Ryne, Rita Wallen, Olli Anderbrant, Christer Lofstedt. 2005. Male-produced sex pheromone in Tribolium confusum: Behavioural and investigation of pheromone production locations. Stored Prod. Res. 42: 173-182.
2. Via, S. 1999. Cannibalism facilitates the use of a novel environment in the flour beetle, Tribolium castaneum. Heredity. 82: 267-275.
3. Weston, PA., Rattlingourd, PL. 2000. Progeny production by Tribolium castaneum (Coleoptera: Tenebrionidae) and Oryzaephilus surinamensis (Coleoptera: Silvanidae) on maize previously infested by Sitotroga cerealla (Lepidoptera: Gelechiidae) J. Econ. Entomol. 93: 533-536.
4. Georghiou, GP. 1987. Insecticides Pest Resistance: The Consequences of Abuse, Faculty Research Lecture, Academie Senate, University of California, Riverside, Calif, USA.
5. Metcalfe, JL. 1989. Biological water quality assessment of running waters based on macro invertebrate communities: history and present status in Europe, Environmental pollution, 60 (1-2): 101-139.
6. Lamiri, M., lhaloui, S., Benjilali, B., Berrada, M. 2001. Insecticidal effects of essential oils against Hessian fly, Mayetiola destructor (Say). Field crops Research. 71: 9-15.
7. Saxena, RC. 1982. Naturally occurring pesticides and potential. In: Conference on Chemistry Applied to World Needs (Ed., Shemilt, L.W.). Manila, Phillippines. 143 pp
8. Rahman, A., Talukder, FA. 2006. Bioefficacy of some plant derivatives that protect grain against the pulse beetle, Callosobruchus maculatus. J. Insect Sci. 6(3): 1 – 10.
9. Sagheer, M., Hasan, MU., Latif, MA., Iqbal, J. 2011. Evaluation of some indigenous medicinal plants as a source of toxicant, repellent and growth inhibitors against Tribolium castaneum (Coleoptera: Tenebrionidae). Pak. Entomol. 33(2): 87-91.
10. Bhalerao, SN. 2014. Insecticidal Activity of Two Herbal Plant Extracts Against Tribolium Castaneum (Coleoptera: Herbst.). Zoology. 3 (4): 455-457.
11. Saidana, D., Ben Halima-Kamel, M., Mahjoub, MA., Haouas, D., Mighri, Z., Helal, AN. 2007. Insecticidal activities of Tunisian halophytic plant extracts against larvae and adults of Tribolium confusum. Tropicultura. 25:1-3.
12. Finney, DJ. 1971. Probit analysis. Cambridge Univ. Press, Cammbridge. 333
13. Talukder, FA., Howse, PE. 1995. Evaluation of Aphanamixis polystachya as repellents, antifeedants, toxicants and protectants in storage against Tribolium castaneum (Herbst) J. Stored Prod. Res. 31:55-61.
14. Shaaya, E., Kostjukovski, M., Eilberg, J., Sukprakarn, C. 1997. “Plant oils as fumigants and contact insecticides for the control of stored-product insects,” J. Stored Prod. Res. 33(1): 7–15.
15. Talukder, FA., Miyata, M. 2002. In vivo and in vitro toxicities of pithraj and neem against rice green leaf hopper (Nephotettix cincticeps Uhler). Zeitschrift für Pflanzenkrankheiten und Pflanzenschutz 109:543- 550.
16. Khan, A., Gumbs, FA. 2003. Repellent effect of ackee (Blighia sapida Koenig) component fruit parts against stored-product insect pests. Tropical Agriculture. 80: 19-27.
17. Park, C., Kim, SI., Ahn, Y J. 2003. Insecticidal activity of asarones identified in Acorus gramineus rhizome against three coleopteran stored-product insects. J. Stored Prod. Res. 39: 333-342.
18. Schmutterer, H. 1990. Properties and potential of natural pesticides from the neem tree Azadirachta indica. Annu. Rev. Entomol. 35: 271-297.
19. Xie, YS., Field, PG., Isman, MB. 1995. Repellency and toxicity of Azadirachtin and Neem concentrates to three stored product beetles. J. Econ. Entomol. 88: 1024–1031.
20. Singal, SK., Chauhan, R. 1997. Effect of some plant products and other materials on development of pulse beetle, Callosobruchus chinensis (L.) on stored pigeonpea, Cajanus cajan (L.) Millsp. J. Insect Sci. 10:196-197.
21. Golob, P., Moss, C., Dales, M., Fidgen, A., Evans, J. 1999. The use of spices and medicinals as bioactive protectants for grains. FAO Agricultural services Bulletin 137.
22. Weaver, D., Subramanyam, Bh. 2000. Botanicals. Pp303-320 in Subramanyam, Bh., Hagstrum, D. (Eds), Alternatives to pesticides in stored product IPM. Dordrecht, Netherlands: Kluwer Academic publishers.
23. Schmutterer, H., Singh, R. 2002. List of insect pests susceptible to neem products In: Schmutterer, H. (ed) “The neem tree and other Meliaceae. Source of unique natural products for integrated pest management medicine, industry and other purpose” 2nd Edition, The neem foundation, 411-456.
24. Aslan, I., Özbek, H., Çalmaşur, Ö., Şahin, F. 2004. Toxicity of essential oil vapors to two greenhouse pests, Tetranychus urticae Koch and Bemisia tabaci Genn. Ind Crops Prod. 19 (2): 167-73.
25. Ali, WK., Mohammed, HH. 2013. Toxic effect of some plant extracts on the mortality of flour beetle Tribolium confusum (Duval) (Coleoptera: Tenebrionidae). Entomol Ornithol Herpetol. 2: 115.
26. Padin, SB., Fuse, C., Urrutia, MI., Dal Bello, GM. 2013. Toxicity and repellency of nine medicinal plants against Tribolium castaneum in stored wheat. Bull Insectol. 66 (1): 45-9.