Bioactivities of the Leaf Essential Oil of &lt;I&gt;Curcuma Longa&lt;/I&gt; (Var. Ch-66) On Three Species of Stored-Product Beetles (Coleoptera)

Tripathi, Arun Kumar; Prajapati, Veena; Verma, Neetu; Bahl, J. R.; Bansal, Renu; Khanuja, S. P. S.; Kumar, Sushil

doi:10.1603/0022-0493-95.1.183

Cited by 147 publications

(71 citation statements)

References 16 publications

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“…These results are in agreement with earlier workers who have exhibited effectiveness and economy in using these oils where plant materials are abundantly available (Jang et al, 2002;Tripathi et al, 2002;Amer and Mehlhorn, 2006;Okumu et al, 2007;Aivazi and Vijayan, 2008;Kovendan et al, 2007;Silva et al, 2008;Abdel-Ghaffar et al, 2009). The active compounds from plant oils have been isolated and their repellent and contact activities are well reported.…”

Section: Discussionsupporting

confidence: 91%

Bioactivity of Oils from Medicinal Plants against Immature Stages of Dengue Mosquito Aedes aegypti (Diptera: Culicidae)

Nasır¹,

Batool²,

Hussain³

et al. 2015

IJAB

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To evaluate the efficacy of the essential oils extracted from the branches and leaves of eucalyptus (Eucalyptus globules Labill.), neem (Azadirachta indica A. Juss), peppermint (Mentha piperita L.), basil (Ocimum basilicum L.) and from rhizome of ginger (Zingiber officinale Rosc.) against the larvae and pupae of Aedes aegypti L. The essential oils were extracted with Soxhlet apparatus using petroleum ether as a solvent. The oils were evaluated against 1 th instar larvae and the pupae of Ae. aegypti following WHO protocol. The dead individuals in all stages were counted after 8, 16, 24 and 48 hours in treatments of different concentrations (100, 200, 300 and 400 ppm). The percent mortality in each stage was determined and consequently LC 50 s were also calculated by Probit analysis. A control treatment was also run by using petroleum ether in which mortality (<6%) of different life stages of Aedes mosquitoes was observed. Results showed that higher mortality was observed in early life stages than later ones. Ginger was more effective having lowest LC 50 after 8 h (142 ppm) and 16 h (8.5 ppm) against 1 st instar larvae followed by peppermint, basil, eucalyptus and neem. However, eucalyptus and peppermint were efficacious after 24 h (66 and 84 ppm) and 48 h (19.5 and 17 ppm), respectively. Ginger oil showed high efficacy in short period of the time (8 and 16 h) followed by peppermint, basil, eucalyptus and neem, whereas eucalyptus oil exhibited its lethality after 24 h, whilst peppermint has longer potency and persistence (48 h) than other plant oils. For pupal stage, peppermint had knockdown effect (8 h) followed by eucalyptus (16 h), basil (24 h) and neem (48 h). From these results, it can be concluded that the oils of E. globules and M. piperita were effective larvicide against the immature stages of Ae. aegypti.

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Section: Discussionsupporting

confidence: 91%

Bioactivity of Oils from Medicinal Plants against Immature Stages of Dengue Mosquito Aedes aegypti (Diptera: Culicidae)

Nasır¹,

Batool²,

Hussain³

et al. 2015

IJAB

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“…Large variation in the sensitivity of stored grain pests to fumigation toxicity of volatiles of many plants have also been reported by several workers (Lee et al,2001;Schmidt et al,1991;Shaaya et al,1997;Tripathi et al, 2002).…”

Section: Means Followed By the Same Letters In Each Column Are Not Simentioning

confidence: 55%

Ethnobotanicals for Storage Pest Management: Effect of powdered leaves of Olax zeylanica in suppressing infestations of rice weevil Sitophilus oryzae (Coleoptera: Curculionidae)

Fernando

Karunaratne

2012

JTFE

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The rice weevil, Sitophilus oryzae is one of the major pests of stored rice in Sri Lanka. This study investigates the effectiveness of the botanical Olax zeylanica in controlling infestations of the rice weevil.In two separate bioassays, contact/feeding and fumigant toxicity of powdered leaves of O. zeylanica were tested against 1-7 days old adult S. oryzae under laboratory conditions. Contact/feeding toxicity was tested by directly exposing adult weevils to 1.0, 3.0, 5.0 and 7.5g of leaf powder mixed with 100g of rice grains while fumigant toxicity was evaluated by using the same doses where theadults were exposed to fumes emitted from the leaf powders. In both bioassays 100% mortality of the adult S. oryzae was observed within 18 hours of exposure to 3.0, 5.0 and 7.5g doses of leaf powder. Percentage adult weevil mortality in treated rice tested with three doses of O. zeylanica leaf powder at all the time intervals (except for 1.0g) was significantly higher (p < 0.05) than that of the corresponding control. No Contact/feeding toxicity was recorded when adult weevils were directly exposed to 1.0g leaf powder whereas only 14% adult weevil mortality was observed even after 24hours of exposure to fumes ofleafpowder. Results also revealed that mortality increased both with increasing dose and time of exposure. In both bioassays a 100% adult weevil mortality was obtained after18 hours of exposure to 3.0g leaf powder of O. zeylanica or to its fumes.Moreover, LD50 values of 2.55g and 2.08g for leaf powders obtained after 12 hours of exposure to adult S. oryzae in contact/feeding toxicity test and fumigation test respectively.The results indicatedthat leaf powder of O. zeylanica is more toxic to adults S. oryzae when they were in direct contact with it.Findings of this study bears out the exceptionally high efficacy of O. zeylanica leaves applied directly mixed with the rice grains or introduced as a fumigant to suppress weevil infestations in stored grains and strengthen the possibility of using powdered leaves of O. zeylanica as an alternative to synthetic chemicals in storage insect pest management.

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“…Tripathi et al (2002) reported that 1-8 Cineole from Curcuma longa have grain protectant potential against T. castaneum. Essential oil of Ocimum kilimandascharicum at 1,200 ppm was used as grain protectant against Rhyzopertha dominica (Obeng-Ofori et al 1998).…”

Section: Resultsmentioning

confidence: 99%

Leaves of Lantana camara Linn. (Verbenaceae) as a potential insecticide for the management of three species of stored grain insect pests

2012

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Insects cause extensive damage to stored grains and their value added products. Among the stored grain pests Sitophilus oryzae (L.) Callosobruchus chinensis (Fab.) and Tribolium castaneum (Herbst.) are considered as destructive pests in India. Plants may provide alternatives to currently used insect control agents as they constitute rich source in bioactive molecules. Lantana camara, an erect shrub, which grows widely in the tropics, exhibits insecticidal activity against several insects. The methanol extract from leaves of L. camara has fumigant and contact toxicity against S. oryzae, C. chinesis and T. castaneum. In fumigant assays, The LC 50 for S. oryzae was 128 μl/L 1 , C. chinensis 130.3 μl/L 1 , and T. castaneum 178.7 μl/L 1 . The LD 50 values for S. oryzae C. chinensis and T. castaneum in contact toxicity were 0.158, 0.140 and 0.208 mg/cm 2 , respectively. For grain treatment, a concentration of 500 mg/L 1 and 7 days exposure were needed to obtain 90 -100 % population extinction in all three insects. Probit analysis showed that C. chinensis were more susceptible than S. oryzae and T. castaneum. Gaschromatography-Mass Spectrometer (GCMS) studies for extracts indicated the presence of potent fumigant molecules in L. camara. The prospect of utilizing L. camara as potent fumigant insecticide is discussed.

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Bioactivities of the Leaf Essential Oil of <I>Curcuma Longa</I> (Var. Ch-66) On Three Species of Stored-Product Beetles (Coleoptera)

Cited by 147 publications

References 16 publications

Bioactivity of Oils from Medicinal Plants against Immature Stages of Dengue Mosquito Aedes aegypti (Diptera: Culicidae)

Bioactivity of Oils from Medicinal Plants against Immature Stages of Dengue Mosquito Aedes aegypti (Diptera: Culicidae)

Ethnobotanicals for Storage Pest Management: Effect of powdered leaves of Olax zeylanica in suppressing infestations of rice weevil Sitophilus oryzae (Coleoptera: Curculionidae)

Leaves of Lantana camara Linn. (Verbenaceae) as a potential insecticide for the management of three species of stored grain insect pests

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