Botanicals

Weaver, David K.; Subramanyam, Bhadriraju

doi:10.1007/978-1-4615-4353-4_11

Cited by 48 publications

(24 citation statements)

References 43 publications

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“…Farmers and researchers often claim the successful use of plant materials in insect pest control, including ash (Ofuya, 1986;Ajayi et al, 1987), vegetable oils (Schoovoven, 1978), plant extracts (Talukdar and Howse, 1993;Adedire and Lajide, 1999), and botanical powders (Abdullahi and Efficacy of Acorus calamus L. leaves and rhizome on mortality and reproduction of Callosobruchus chinensis L. (Coleoptera: Bruchidae) Muhammad, 2004;Shukla et al, 2007). It has been reported that certain plant preparations and traditional methods are much safer than chemical insecticides (Verma and Dubey, 1999;Weaver and Subramanyam, 2000); therefore, these materials should be explored to protect stored products against pest infestation.…”

Section: Introductionmentioning

confidence: 99%

Efficacy of Acorus calamus L. leaves and rhizome on mortality and reproduction of Callosobruchus chinensis L. (Coleoptera: Bruchidae)

Shukla

Kumar

Prasad

et al. 2009

Appl. Entomol. Zool.

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Laboratory and field experiments were conducted to investigate the bioefficacy of sweet flag (Acorus calamus) against the pulse beetle Callosobruchus chinensis, which infests stored chick pea seeds. Dried powders of the leaf and rhizome as well as their extracts in methanol (ME) and petroleum ether (PEE) were evaluated as bio-insecticides against the beetle. Rhizome powder (5 mg/g seed) was found to be more efficacious, causing 100% mortality, than leaf powder (20 mg/g seed), showing 91.1% mortality. Rhizome powders also showed 100% ovicidal activity and thus completely inhibited F 1 emergence at a lower dose than that of leaf powders. The ME and PEE of leaves and rhizome showed 12 to 100% mortality. The percentage of egg laying decreased from 12.8 to 100 with increasing doses of powders and extracts. No F 1 adult emerged at 0.3-0.4 mg/g ME of leaves and rhizome and PEE of rhizome. In six-month field trials, all treatments at laboratory doses proved efficacious (75-98%) over organophosphate insecticide malathion (74.4%) in terms of feeding deterrence. Powder-and extract-treated chick pea seeds did not lose their viability and germinated at 100%, similar to control seeds. It was concluded that leaf and rhizome powders and their solvent extracts showed significant mortality, and inhibition of egg laying and F 1 emergence of C. chinensis at varying concentrations. Hence, the leaves and rhizome of A. calamus may be recommended as admixtures in the integrated management of beetle infestation of pulse seeds during storage.

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Section: Introductionmentioning

confidence: 99%

Efficacy of Acorus calamus L. leaves and rhizome on mortality and reproduction of Callosobruchus chinensis L. (Coleoptera: Bruchidae)

Shukla

Kumar

Prasad

et al. 2009

Appl. Entomol. Zool.

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“…2003, 2005a,b; Kavallieratos et al. 2005) and plant derivatives (Prakash and Rao 1997; Weaver and Subramanyam 2000; Athanassiou et al. 2005).…”

Section: Introductionmentioning

confidence: 99%

Toxicity of some terpenoids of essential oils of Xylopia aethiopica from Cameroon against Sitophilus zeamais Motschulsky

Kouninki

Hance

Noudjou

et al. 2007

J Applied Entomology

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Abstract:The acute toxicity of essential oils from the whole fruit (EF) or from the fibres of the fruit (FF) of the local aromatic plants Xylopiα αethiopicα Dunal (Annonaceae) collected in north Cameroon was evaluated on Sitophilus zeαmαis adults. A concentration of 1 ml of essential oil per 100 g of maize seeds was tested to determine weevil mortality after 24 h of exposure. Under these conditions, the essential oil derived from both EF and FF of X. αethiopicα led to 100% mortality. In a second step, proportions of active compounds present in the oil of both EF and FF of X. αethiopicα were quantified. The toxicity of the four main compounds was tested against S. zeαmαis: α-pinene, β-pinene, ∆-3-carene and terpinen-4-ol according to their proportion in the essential oil of the concerned plant part. β-pinene and terpinen-4-ol were responsible for 50% of the mortality at the proportion found in EF and FF essential oils respectively. When mixed, a synergic effect of the compounds was observed that restored the mortality percentage observed for the crude oil. It appears that X. αethiopicα essential oil could be a potential source of natural and low-cost insecticide to control storage pests.

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“…Recently, there has been a growing interest in research concerning the possible use of plant extracts as alternatives to synthetic insecticides. Different types of aromatic plant preparations such as powders, solvent extracts, essential oils and whole plants are being investigated for their insecticidal activity including their action as fumigants, repellents, anti‐feedents and insect growth regulators (Prakash and Rao 1997; Isman 2000; Weaver and Subramanyam 2000). Essential oils are among the best‐known substances tested against insects.…”

Section: Introductionmentioning

confidence: 99%

“…Essential oils are among the best‐known substances tested against insects. Weaver and Subramanyam (2000) suggested that fumigant activity in botanicals could have a greater potential use than grain protectants in future on the basis of their efficacy, economic value and use in large‐scale storages. More current research showed that essential oils and their constituents may have potential as alternative compounds to currently used fumigants (Tunc et al.…”

Section: Introductionmentioning

confidence: 99%

Fumigant toxicity of Eucalyptus intertexta, Eucalyptus sargentii and Eucalyptus camaldulensis against stored‐product beetles

Negahban

Moharramipour

2007

J Applied Entomology

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Three essential oils extracted from the species of the family Myrtaceae found in Kashan (centre regions of Iran) were shown to have potent fumigant toxicity against three major stored-product insects: Callosobruchus maculatus (Fab.), Sitophilus oryzae (L.) and Tribolium castaneum (Herbst). These were the essential oils from Eucalyptus intertexta R.T. Baker, Eucalyptus sargentii Maiden and Eucalyptus camaldulensis Dehnh. The mortality of 1-to 7-day-old adults of the insect pests increased with concentration from 37 to 926 ll/l air and with exposure time from 3 to 24 h. The LC 50 values to the selected essential oils were between 2.55 and 3.97 ll/l air for C. maculatus, 6.93 and 12.91 ll/l for S. oryzae and 11.59 and 33.50 ll/l air for T. castaneum. Fumigant effects of these essential oils were considered to warrant further research into their potential for commercial use.

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Botanicals

Cited by 48 publications

References 43 publications

Efficacy of Acorus calamus L. leaves and rhizome on mortality and reproduction of Callosobruchus chinensis L. (Coleoptera: Bruchidae)

Efficacy of Acorus calamus L. leaves and rhizome on mortality and reproduction of Callosobruchus chinensis L. (Coleoptera: Bruchidae)

Toxicity of some terpenoids of essential oils of Xylopia aethiopica from Cameroon against Sitophilus zeamais Motschulsky

Fumigant toxicity of Eucalyptus intertexta, Eucalyptus sargentii and Eucalyptus camaldulensis against stored‐product beetles

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