Formerly International Journal of Basic and Applied Agricultural Research

Long-term efficacy of nineteen essential oils against Corcyra cephalonica (Stainton), Sitotroga cerealella (Olivier)and Callosobruchus chinensis (Linnaeus)

DEEPA KUMARI and S. N. TIWARI
Pantnagar Journal of Research, Volume - 20, Issue - 3 ( September-December 2022)

Published: 2022-12-31

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Abstract


Experiments were conducted to study the long- term bio-efficacy and fumigant toxicity of nineteen essential oils of Curcuma longa, Cymbopogon flexuous, Cymbopogon martini, Cymbopogon winterianus, Eucalyptus citriodora, Eucalyptus globulus, Ferula asafoetida, Lavandula angustifolia, Lippia alba, Mentha arvensis, Mentha cardiaca, Mentha citrata, Mentha piperita, Mentha spicata, Pelargonium graveolens, Pinus roxburghii, Ocimum basilicum, Salvia officinalis and Tanacetum cinerariifolium against Corcyra cephalonica (Stainton), Sitotroga cerealella (Olivier) and Callosobruchus chinensis (Linnaeus) at the concentration of 0.1, 0.2, 0.3, and 0.4 per cent (v/w). The study revealed that all the essential oils were highly effective against target insect pests of stored grains and they can be utilized for its protection. The essential oils of M. arvensis, F. asafoetida and L. angustifolia were highly effective against C. cephalonica at all the concentrations. The oils of M. arvensis, M. spicata, M. piperita, C. winterianus, T. cinerariifolium, O. basilicum and L. alba were also highly effective against S. cerealella. All the essential oils showed high efficacy against C. chinensis at all concentration as they caused 100 per cent mortality of it. The fumigant toxicity of some oils persisted for 263, 234 and 175 days against C. cephalonica, S. cerealella and C. chinensis, respectively. The findings suggest that all these essential oils may be exploited to prevent the post-harvest infestation of stored grains


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