Formerly International Journal of Basic and Applied Agricultural Research

The effect of different formulations of herbal fumigant on progeny production of stored grain insect pest, Sitophilus oryzae (Linnaeus)

DEEPA KUMARI and S. N. TIWARI
Pantnagar Journal of Research, Volume - 21, Issue - 1 ( January - April, 2023)

Published: 2023-04-30

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Abstract


The experiment was conducted to evaluate the long-term efficacy of different formulations seven essential oils and their combinations on the progeny productions of notorious stored grain pest, Sitophilus oryzae L. (Rice weevil). The essential oils of Mentha arvensis (Mint), Mentha piperita (Peppermint), Mentha spicata (Spearmint), Cymbopogon winterianus (Citronella), Eucalyptus citriodora (Nilgiri), Curcuma longa (Turmeric) and Pinus roxburghii at 0.2, 0.4 per cent concentration (v/w) and in combination of 0.2+0.2, 0.14, 0.1, 0.08, 0.07, 0.06, 0.1+0.1 and 0.3+0.1 per cent each were evaluated for this purpose. It was observed that all the formulations of herbal fumigants except M. arvensis oil, C. winterianus oil, C. longa oil at 0.2 per cent, M. arvensis + C. longa at 0.2 per cent each, M. piperita + C. longa, C. longa + P. roxburghii, C. longa + M. arvensis at 0.1 per cent each, C. longa + M. arvensis at 0.3+0.1 per cent completely inhibited the progeny production of S. oryzae. Herbal fumigants used at 0.4 per cent with sole component of M. arvensis, M. piperita, M. spicata, C. winterianus, E. citriodora, C. longa or P. roxburghii oil or their two-component combination 0.2 per cent each, three component combination at 0.14 per cent each, four component combination at 0.1 per cent each, five component combination at 0.08 per cent each, or six component combination at 0.07 per cent each or seven component combination at 0.06 per cent each completely inhibited the progeny production of S. oryzae up to 515 days showing high efficacy of these oils as herbal fumigants.


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