Papers by Gayatri Jaiswal
Journal of Applied Sciences and Environmental Management, 2010
Capparis deciduas and its combinatorial mixtures were evaluated to observe the anti-termite effic... more Capparis deciduas and its combinatorial mixtures were evaluated to observe the anti-termite efficacy against Indian white termite Odontotermes obesus. These have shown very high termiticidal activity and wood protection in the soil. It is proved by very low LD 50 values i.e. 0.0218mg/g and 0.021mg/g obtained in stem fractions CDS3 and CDS7 respectively. When other ingredients, were used to prepare combined mixtures with C. decidua these have shown synergistic action and caused very high termite mortality in termites. Besides this, both tag binding and wood seasoning experiments significantly cut down (p<0.05 and 0.01 level) in termite infestation in garden saplings and in seasoned dry wood planted in the garden soil. Above treatments have successfully obstructed the ascending and descending movements of termites and prohibited mud plastering and tunnel formation in workers. It was found statistically significant at the level 0.05. @JASEM
Psyche: A Journal of Entomology, 2012
In the present investigation, we have tested antitermite responses ofCapparis deciduastem, root, ... more In the present investigation, we have tested antitermite responses ofCapparis deciduastem, root, flower, and fruit extracts and pure compounds toOdontotermes obesusin various bioassays. Crude stem extract has shown very high susceptibility and very low LD50values, that is, 14.171 μg/mg in worker termites. From stem extract, three pure compounds were isolated in pure form namely, heneicosylhexadecanoate (CDS2), triacontanol (CDS3), and 2-carboxy-1, 1-dimethylpyrrolidine (CDS8) which have shown very low LD50value in a range of 5.537–10.083 μg/mg. Similarly, one novel compound 6-(1-hydroxy-non-3-enyl)-tetrahydropyran-2-one (CDF1) was isolated from flower extract that has shown an LD508.08 μg/gm. Repellent action of compounds was tested in a Y-shaped glass olfactometer in which CDF1 compounds have significantly repelled termites to the opposite arm. Besides this,C. deciduaextracts have shown significant reduction (P<0.05and 0.01) in termite infestation in garden saplings when it was ...
Bulletin of Insectology, 2007
The essential oil of Piper nigrum (L.) was evaluated for its repellent, insecticidal and developm... more The essential oil of Piper nigrum (L.) was evaluated for its repellent, insecticidal and developmental inhibitory activities against an important wheat grain pest Tribolium castaneum (Herbst). Adults of T. castaneum were repelled significantly by P. nigrum at 0.2% concentration (v:v) and ...
Agriculture and …, 2010
Abstract. In the present investigation termiticidal effects of Capparis decidua and its combinato... more Abstract. In the present investigation termiticidal effects of Capparis decidua and its combinatorial mixtures on biochemical and enzymatic pa-rameters of Odontotermes obesus (Isoptera: Termitidae) were observed. C. decidua has shown very high termiticidal activity to O. ...
Psyche A Journal of Entomology
In the present investigation, we have tested antitermite responses of Capparis decidua stem, root... more In the present investigation, we have tested antitermite responses of Capparis decidua stem, root, flower, and fruit extracts and pure compounds to Odontotermes obesus in various bioassays. Crude stem extract has shown very high susceptibility and very low LD50 values, that is, 14.171 μg/mg in worker termites. From stem extract, three pure compounds were isolated in pure form namely, heneicosylhexadecanoate (CDS2), triacontanol (CDS3), and 2-carboxy-1, 1-dimethylpyrrolidine (CDS8) which have shown very low LD50 value in a range of 5.537–10.083 μg/mg. Similarly, one novel compound 6-(1-hydroxy-non-3-enyl)-tetrahydropyran-2- one (CDF1) was isolated from flower extract that has shown an LD50 8.08 μg/gm. Repellent action of compounds was tested in a Y-shaped glass olfactometer in which CDF1 compounds have significantly repelled termites to the opposite arm. Besides this, C. decidua extracts have shown significant reduction (P < 0.05 and 0.01) in termite infestation in garden saplings...
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Papers by Gayatri Jaiswal