NDLI: Biochemical Analysis of a Castor Bean Leaf Extract and its Insecticidal Effects Against Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae)

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Biochemical Analysis of a Castor Bean Leaf Extract and its Insecticidal Effects Against Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae)

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Biochemical Analysis of a Castor Bean Leaf Extract and its Insecticidal Effects Against Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae)

Content Provider	Springer Nature Link
Author	Rossi, G D Carvalho, G A Alves, D S Pereira, L L S Santos, C D
Copyright Year	2012
Abstract	Plant extracts represent a great source of molecules, with insecticidal activity, which are used for pest control in several crop production systems. This work aimed to evaluate the toxicity of an aqueous extract of leaves of castor bean against larvae of Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) in search for different classes of molecules with insecticidal activities by using in vitro assays. The effects of the castor bean leaf extract on the food utilization, development, and survival of S. frugiperda larvae was evaluated by feeding the larvae an artificial diet supplemented with different concentrations of the extract (0%, 1%, 2.5%, 5%, and 10% w/v). The effects observed were dose-dependent, and the highest concentration evaluated (10% w/v) was the one the most affected food utilization by altering the nutritional indices, as well as larval weight gain, development time, and survivorship. In vitro assays to detect saponins, lectins, and trypsin inhibitors in the castor bean leaf extract were performed, but only trypsin inhibitors were detected. No preference for the diet source was detected in S. frugiperda by feeding the larvae in choice experiments with diets containing different concentrations of the castor bean extract tested. The data obtained indicate the existence of a potential molecule in the tested extract of castor bean to be used as an alternative insecticide to be integrated in the management of S. frugiperda.
Starting Page	503
Ending Page	509
Page Count	7
File Format	PDF
ISSN	1519566X
Journal	Neotropical Entomology
Volume Number	41
Issue Number	6
e-ISSN	16788052
Language	English
Publisher	Springer-Verlag
Publisher Date	2012-08-28
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Life Sciences Entomology fall armyworm Euphorbiaceae plant extract Agriculture pest control Ricinus communis
Content Type	Text
Resource Type	Article
Subject	Insect Science

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Biochemical analysis of a castor bean leaf extract and its insecticidal effects against Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae).

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Biochemical Analysis of a Castor Bean Leaf Extract and its Insecticidal Effects Against Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae)

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Biochemical analysis of a castor bean leaf extract and its insecticidal effects against Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae).

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Biochemical Analysis of a Castor Bean Leaf Extract and its Insecticidal Effects Against Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae)