Pesticidal activities in five medicinal plants collected from mid hills of western Himalayas

Tewary, Dhananjay Kumar; Bhardwaj, Anu; Shanker, Adarsh

doi:10.1016/j.indcrop.2005.01.004

Cited by 76 publications

(53 citation statements)

References 18 publications

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“…This is in agreement with the findings of [3] who observed that the hexane extract of A. monophylla had higher antifeedant activity on S. litura. The present results also corroborate with the findings of [23] who reported that low polar solvent extract had higher activity than the high polar solvent extracts. Many researchers reported earlier that hexane extract showed antifeedant activity on S. litura [21,15,25].…”

Section: Discussionsupporting

confidence: 92%

Bioefficacy of Atalantia Monophylla (L.) Correa. Against Earias Vittella Fab.

Muthu¹,

Baskar²,

Kingsley³

et al. 2010

JCEA

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Hexane, chloroform and ethyl acetate extracts of the leaves of Atalantia monophylla (L.) Correa. were evaluated for their antifeedant and larvicidal activities along with their effect on pupation and adult emergence against bhendi fruit borer, Earias vittella Fab. at 5, 2.5 and 1.25% concentrations. Commercial botanical insecticide, Vijay Neem was used as positive control. Hexane extract at 5% concentration showed significant antifeedant and larvicidal activity of 70.89 and 85.33% respectively. A reduction of 16.66% in adult emergence was recorded in hexane extract followed by 25% reduction in ethyl acetate extract at 5% concentration. The results revealed that hexane extract showed significant antifeedant, and larvicidal activity and good reduction in adult emergence. This extract could be further investigated to isolate the active principles.

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Section: Discussionsupporting

confidence: 92%

Bioefficacy of Atalantia Monophylla (L.) Correa. Against Earias Vittella Fab.

Muthu¹,

Baskar²,

Kingsley³

et al. 2010

JCEA

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“…The study clearly reveale that maximum feeding deterrent activity of 72.3% was recorded in methanol extract of Gliricidium sepium at 1000 ppm followed by Petroleum ether and ethyl acetate extract of Gliricidium sepium, compared to control. Similar results were reported in crude ethanolic extracts of five medicinal plants (Berberis lyceum L, Hedera nepalensis L, Acorus calamus L, Zanthoxylum armatum L and Valeriana jatamansi L.) with specific mode of action against insects in a complex mixture of compounds (Tewary et al,2005).…”

Section: Resultssupporting

confidence: 84%

Antifeedant activity of different solvent extracts of Gliricidia sepium against third instar larvae of Helicoverpa armigera (Hubner) (Lepidoptera : Noctuidae)

Jose¹,

Sujatha²

2017

Int. J. Adv. Res. Biol. Sci

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Plant based pesticides are known as phytopesticides. Phytopesticide formulations offer a more eco-friendly approach to Insect Pest Management than chemical pesticides. The biological compounds present in these formulations have several biological activities against insect pests. In the present work, an attempt has been made to study the antifeedant activity of Gliricidia sepium leaf extracts using three solvents, i.e; petroleum ether, ethyl acetate and methanol against third instar larvae of Helicoverpa armigera. All extracts exhibited as significant antifeedant activity at LC 50 . Methanol extract deterred feeding potential of the insect larvae by 62.38% at 1000 ppm, followed by ethyl acetate (46.67%) and petroleum ether (40.37%). Hence this naturally occurring plant extracts could be useful for managing the Helicoverpa armigera population.

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“…The inhibition percentage was obtained according to the equation: [100 -(absorbance/average absorbance of control) x 100]. The LD 50 was defined as the amount of essential oil needed to inhibit the DPPH…”

Section: Dpph • and Abts •+ Radical Scavenging Activitymentioning

confidence: 99%

“…Mites or aphids were considered dead if they did not move when prodded with a fine paintbrush. The mortality data were subjected to the PROBIT analysis [33] for calculations of the LD 50 , LD 90 , LCL and UCL with fiducially limits of 95%.…”

Section: Bioassays Of Oil Solutionmentioning

confidence: 99%

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Bioactivity of Licaria puchury-major Essential Oil Against Aedes aegypti , Tetranychus urticae and Cerataphis lataniae

Azevedo¹,

Mar²,

Silva³

et al. 2018

Rec.Nat.Prod.

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The present study was carried out to evaluate an alternative controlling agent for greenhouse pests and the yellow fever mosquito larvae. The potential bioactivity of Licaria puchury-major (Mart.) Kosterm. ("puxuri") was evaluated here against three most common pests in tropical and subtropical countries: Aedes aegypti Linn. Larvae, Tetranychus urticae Koch. mites and Cerataphis lataniae Boisd. aphids. The essential oil from seeds was analyzed by GC-FID and GC-MS. The major compounds were safrole (38.8%) and eucalyptol (21.7%). Phenylpropanes (51.7%) was the main group of compounds and oxygenated monoterpenes represented 28.8% of the total oil. The essential oil has shown no inhibition of acetylcholinesterase (AChE) in the tested concentrations. However, potential antioxidant activities were evaluated by different methods [DPPH: LD 50 = (27.8 ± 1.0) µg/.mL; ABTS: (977.3 ± 25.2) µM TEs/g (Trolox Equivalents); FRAP: (548.2 ± 29.0) µM Fe(II)/g]. A significant larvicidal potential for 24 h of exposure was observed with LD 50 = 98.9 µg/mL, being an indicative that the larval mortality may occur by ingestion or contact due to the no inhibition against AChE. Volatile phase effects were evaluated against T. urticae Koch. and C. lataniae Boisd. and LD 50 were found about 30.8 and 13.5 µg/mL, respectively. These results are consistent with an octopaminergic effect, since some phenylpropanoids (such as Safrole, identified as the major compound in this work) can block octopamine, a multi-functional, naturally occurring biogenic amine. Then, this study clearly illustrated the efficacy of the investigated seeds, which encourages the development of a new potential natural controlling agent against these common pests due to the abundance of these seeds in the Amazon region and to the high essential oil yield.

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Pesticidal activities in five medicinal plants collected from mid hills of western Himalayas

Cited by 76 publications

References 18 publications

Bioefficacy of Atalantia Monophylla (L.) Correa. Against Earias Vittella Fab.

Bioefficacy of Atalantia Monophylla (L.) Correa. Against Earias Vittella Fab.

Antifeedant activity of different solvent extracts of Gliricidia sepium against third instar larvae of Helicoverpa armigera (Hubner) (Lepidoptera : Noctuidae)

Bioactivity of Licaria puchury-major Essential Oil Against Aedes aegypti , Tetranychus urticae and Cerataphis lataniae

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