Gerson Adriano Silva
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Research Interests
Gerson Adriano Silva has a total of 6 co-authors. Here are the top co-authors by number of shared publications:
Júlio Cláudio Martins
Universidade Federal de Viçosa
1 shared publication- Luiz Claudio Almeida Barbosa
Universidade Federal de Minas Gerais
1 shared publication - Marcelo Coutinho Picanço
Department of Entomology, Federal University of Viçosa, Viçosa, Brazil
1 shared publication - Mateus Ribeiro Campos
INRAE, CNRS, UMR ISA, University Côte d’Azur, Nice, France
1 shared publication - Márcio Dionizio Moreira
Universidade Federal de Viçosa
1 shared publication - Raul Narciso Carvalho Guedes
Departamento de Entomologia Universidade Federal de Viçosa Viçosa MG Brazil
1 shared publication
Latest Publications
- Open Access
- 1 July 2007
- Published by FapUNIFESP (SciELO) in Pesquisa Agropecuária Brasileira
- Vol. 42 (7) , 909-915
Plant compounds insecticide activity against Coleoptera pests of stored products
The objective of this work was to screen plants with insecticide activity, in order to isolate, identify and assess the bioactivity of insecticide compounds present in these plants, against Coleoptera pests of stored products: Oryzaephilus surinamensis L. (Silvanidae), Rhyzopertha dominica F. (Bostrichidae) and Sitophilus zeamais Mots. (Curculionidae). The plant species used were: basil (Ocimum selloi Benth.), rue (Ruta graveolens L.), lion's ear (Leonotis nepetifolia (L.) R.Br.), jimson weed (Datura stramonium L.), baleeira herb (Cordia verbenacea L.), mint (Mentha piperita L.), wild balsam apple (Mormodica charantia L.), and billy goat weed or mentrasto (Ageratum conyzoides L.). The insecticide activity of hexane and ethanol extracts from those plants on R. dominica was evaluated. Among them, only hexane extract of A. conyzoides showed insecticide activity; the hexane extract of this species was successively fractionated by silica gel column chromatography, for isolation and purification of the active compounds. Compounds 5,6,7,8,3',4',5'-heptamethoxyflavone; 5,6,7,8,3'-pentamethoxy-4',5'-methilenedioxyflavone and coumarin were identified. However, only coumarin showed insecticide activity against three insect pests (LD50 from 2.72 to 39.71 mg g-1 a.i.). The increasing order of insects susceptibility to coumarin was R. dominica, S. zeamais and O. surinamensis.
- 1 July 2007
- Published by FapUNIFESP (SciELO) in Pesquisa Agropecuária Brasileira
- Vol. 42 (7) , 909-915
Open AccessPlant compounds insecticide activity against Coleoptera pests of stored products
The objective of this work was to screen plants with insecticide activity, in order to isolate, identify and assess the bioactivity of insecticide compounds present in these plants, against Coleoptera pests of stored products: Oryzaephilus surinamensis L. (Silvanidae), Rhyzopertha dominica F. (Bostrichidae) and Sitophilus zeamais Mots. (Curculionidae). The plant species used were: basil (Ocimum selloi Benth.), rue (Ruta graveolens L.), lion's ear (Leonotis nepetifolia (L.) R.Br.), jimson weed (Datura stramonium L.), baleeira herb (Cordia verbenacea L.), mint (Mentha piperita L.), wild balsam apple (Mormodica charantia L.), and billy goat weed or mentrasto (Ageratum conyzoides L.). The insecticide activity of hexane and ethanol extracts from those plants on R. dominica was evaluated. Among them, only hexane extract of A. conyzoides showed insecticide activity; the hexane extract of this species was successively fractionated by silica gel column chromatography, for isolation and purification of the active compounds. Compounds 5,6,7,8,3',4',5'-heptamethoxyflavone; 5,6,7,8,3'-pentamethoxy-4',5'-methilenedioxyflavone and coumarin were identified. However, only coumarin showed insecticide activity against three insect pests (LD50 from 2.72 to 39.71 mg g-1 a.i.). The increasing order of insects susceptibility to coumarin was R. dominica, S. zeamais and O. surinamensis.