Effect of sixteen essential oils on the progeny production of Sitophilus oryzae (Linnaeus)Pantnagar Journal of Research, Volume - 19, Issue - 2 ( May-August, 2021)
PDF Views - 183 | Downloads - 98
Three sets of experiment were conducted at 0.1, 0.2, 0.3 and 0.4 per cent (v/w) to study the effect of sixteen essential oils on the progeny production of Sitophilus oryzae. The essential oils showing >90.00, 80.00 to 89.99, 70.00-79.99 and <70.00 per cent mean inhibition were classified as highly, moderately, less and least effective, respectively. None of the oil was found to be highly effective at 0.1 per cent. The essential oils of Mentha arvensis and Mentha spicata suppressed more than 90 per cent progeny of test insect at 0.2 per cent due to which they were classified as highly effective at this level. Similar result was also observed in case of Cymbopogon winterianus, Eucalyptus citriodora, Eucalyptus globulus, Mentha piperita, Mentha spicata and Pinus roxburghii at 0.3 and 0.4 per cent due to which they were also classified as highly effective at these concentrations. The essential oil of Cymbopogon flexuosus was highly effective at 0.4 per cent. The oil of Cymbopogon martinii was moderately effective at 0.2 to 0.4 per cent while the oils of Cedrus deodara, Cinnamomum camphora , Curcuma longa, Myristica fragrans, Pelargonium graveolens, Pogostemon patchouli were least effective against S. oryzae in the present study.
Download Full PDF