Insecticidal Activity of Ageratum conyzoides L. Volatile Oil against Callosobruchus maculatus F. in Seed Treatment and Fumigation Laboratory Tests

Gbolade, A. A.; Onayade, O. A.; Ayinde, BA

doi:10.1017/s1742758400019536

Cited by 16 publications

(14 citation statements)

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“…Medicinally, they are used in aromatherapy, as insect repellents, larvicidal and insecticidal agents [2,[37][38][39]. Extracts of O. gratissimum has also been reported to have hypotensive effects, strong insect repellent effects and also showed significant antimicrobial effects against both fungi and bacteria [2,[39][40][41], while others like Cymbopogon citratus, Citrus sinensis and Citrus maxima have been reported to possess remarkable antimicrobial effects against some bacteria and fungi [2,[41][42].…”

Section: Discussionmentioning

confidence: 99%

Effects of Ocimum Gratissimum Leaves on Common Dermatophytes and Causative Agent of Pityriasis Versicolor in Rivers State, Nigeria

C¹,

O²

2012

MICROBIOLOGY

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This antifungal study on Ocimum gratissimum is rare in Nigeria and hence this study seeks to justify the ethobotanical uses of the plant. The antifungal activity of Ocimum gratissimum used by traditional medicine practitioners against the three major Dermatophytes -Trichophyton, Microsporum, Epidermophyton together with Malassezia furfur (the cause of Pityriasis versicolor (Eczema)), were studied by well-in-agar diffusion technique using different concentrations of ethanolic extracts. Isolates from the scalp, skin, toes and feet of forty individuals (mainly children) were obtained in four locations namely Aluu, Choba, Rumuosi and Emohua areas of Rivers State, Nigeria. The results of the study revealed the significant inhibitory effect of Ocimum gratissimum at five different concentrations of 250mg/ml, 200mg/ml, 150mg/ml, 100mg/ml and 50mg/ml used. The diameter zones of inhibition exhibited by the extracts against the test fungal species ranged between 12.50 and 20mm. The minimum inhibitory concentrations (MICs) of the ethanol extract of O. gratissimum was 50.01, 52.40, 63.06 and 63.09 mg/ml for Malassezia furfur, Microsporum, Trichophyton and Epidermophyton, respectively. Assessment of the various MICs showed that Ocimum gratissimum has great potential for use as an antidermatophytic agent. The study showed that the extracts from the leaves of Ocimum gratissimum had pronounced antifungal activities on all the fungi tested. The study has shown that the leaves extracts of O. gratissimum are quite promising and have strongly indicated the antifungal activity spectra of leaves extract of the plant. In conclusion, the results from this study indicated potentials of leaves extract of Ocimum gratissimum as a source of antifungal compounds.

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Section: Discussionmentioning

confidence: 99%

Effects of Ocimum Gratissimum Leaves on Common Dermatophytes and Causative Agent of Pityriasis Versicolor in Rivers State, Nigeria

C¹,

O²

2012

MICROBIOLOGY

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“…Gbolade, Onayade, and Ayinde () reported that A . conyzoides showed significant insecticidal activity.…”

Section: Pharmacologymentioning

confidence: 99%

“…Other studies have reported that the 3,4 double bond played no significant role in the toxicity. It has been reported that oil treated beans at 2.5 to 10 μl/9.5 g concentration showed considerable deterrence of oviposition and also inhibition of growth of adult insects (F1 offspring); however, no adverse physiological effect against beans was reported (Gbolade et al, ). A .…”

Section: Pharmacologymentioning

confidence: 99%

“…It has been found that the aqueous and ethanolic extracts of A. conyzoides show anti-ulcerative potential in rats with ethanol-HCL-induced gastric ulcer, and also that the effect was augmented when these extracts were used in combination with honey (Fathihah, Mahmood, Sidik, & Salmah, 2005). Gbolade, Onayade, and Ayinde (1999) reported that A. conyzoides showed significant insecticidal activity. Both essential oils and major constituents of the plant such as precocenes, exhibited antireproductive effects.…”

Section: Anti-ulcerative Activitymentioning

confidence: 99%

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Phytochemical constituents and ethnopharmacological properties of Ageratum conyzoides L.

Yadav

Ganie

Singh

et al. 2019

Phytotherapy Research

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Ageratum conyzoides L. (Asteraceae) is an invasive aromatic herb with immense therapeutic importance. The herb is distributed in tropical and subtropical regions. A. conyzoides has imparted numerous ethnomedicinal uses because it has been used to cure various ailments that include leprosy, skin disorders, sleeping sickness, rheumatism, headaches, dyspnea, toothache, pneumonia and many more. A number of phytoconstituents have been scrutinized such as alkaloids, flavonoids, terpenes, chromenes, and sterols from almost every part of this plant. These phytoconstituents have shown diverse pharmacological properties including antimicrobial, anti‐inflammatory, analgesic, antioxidant, anticancer, antiprotozoal, antidiabetic, spasmolytic, allelopathy, and many more. The plant A. conyzoides has provided a platform for doing pharmaceutical and toxicological research in order to isolate some promising active compounds and authenticate their safety in clinical uses. A. conyzoides provides principal information for advanced studies in the field of pharmaceutical industries and agriculture. Present review article describes the cytogenetics, ethnobotany, phytochemistry, pharmacology, and toxicological aspects of A. conyzoides.

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“…The leaves of Ghanaian plants contain 80.3% of precocene I [40], while those from Burkina-Faso, Benin, Lagos and Ibadan (Nigeria) respectively contain 86.0% [41], 85.6%, 63.1% [42] and 82.2% [43]. The EO exhibited remarkable insecticidal activity-against the cowpea weevil, Callosobruchus maculatus F. [44]. Work on EOs extracted from the leaves of A. conyzoides acclimatized in Ivory Coast showed a different chemical composition with only 46.5% of precocene I [41].…”

Section: Introductionmentioning

confidence: 99%

Chemical Constituents and Antibacterial Activity of Essential Oils from Flowers and Stems of Ageratum conyzoides from Ivory Coast

Kouamé¹,

Toure²,

Kablan³

et al. 2018

Rec.Nat.Prod.

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The essential oils (EOs) obtained by hydro-distillation of flowers and stems of Ageratum conyzoides L. (Asteraceae) growing in Ivory Coast were investigated. The oils were analyzed and characterized by GC and GC-MS. Analyses of the EOs led to the identification and quantification of 48 constituents in the flower oil and 44 from the stem oil, respectively. Characterization of the EOs revealed the predominance of 6-demethoxyageratochromene or precocene I (flower: 58.8%, stem: 76.5%) and the sesquiterpene β-caryophyllene (flower: 15.2%, stem: 8.1%). Six of the identified compounds β-copaene, hexanal, trans-cadina-1(6),4-diene, α-calacorene, caryophylla-4(12),8(13)-diene-5-β-ol and 1,10-di-epi-cubenol are reported for the first time as constituents of A. conyzoides. Comparative analysis with data from Nigeria, Pakistan, Fiji and Brazil is reported. The antibacterial activity of EOs from of A. conyzoides was tested against seven bacteria. The inhibition zones and minimum inhibitory concentration (MIC) for bacteria strains which were sensitive to A. conyzoides EOs were in the range of 6.7 to 12.7 mm and 64 to 256 μg/mL, respectively. The EOs showed moderate activity against Staphylococcus aureus and Enterococcus faecalis.

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Insecticidal Activity of Ageratum conyzoides L. Volatile Oil against Callosobruchus maculatus F. in Seed Treatment and Fumigation Laboratory Tests

Cited by 16 publications

References 4 publications

Effects of <i>Ocimum Gratissimum</i> Leaves on Common Dermatophytes and Causative Agent of <i>Pityriasis Versicolor</i> in Rivers State, Nigeria

Effects of <i>Ocimum Gratissimum</i> Leaves on Common Dermatophytes and Causative Agent of <i>Pityriasis Versicolor</i> in Rivers State, Nigeria

Phytochemical constituents and ethnopharmacological properties of Ageratum conyzoides L.

Chemical Constituents and Antibacterial Activity of Essential Oils from Flowers and Stems of Ageratum conyzoides from Ivory Coast

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