Pauliquevis, Carolina Ferreira; Conte, Cintia de Oliveira and Favero, Silvio (2013) Atividade insetistática do óleo essencial de Pothomorphe umbellata (L.) Miq. sobre Rhyzopertha dominica (Fabricius, 1792) (Coleoptera: Bostrichidae). [Insectistatic activity of the essential oil of Pothomorphe umbellata (L.) Miq. against Rhyzopertha dominica (Fabricius, 1792) (Coleoptera: Bostrichidae).] Revista Brasileira de Agroecologia, 8 (3), pp. 39-45.
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Document available online at: http://www.aba-agroecologia.org.br/revistas/index.php/rbagroecologia/article/view/12911/9844
Summary in the original language of the document
Os óleos essenciais podem afetar negativamente o crescimento, desenvolvimento e reprodução de vários insetos de produtos armazenados. Dessa forma, o objetivo neste trabalho foi detectar o efeito insetistático do óleo essencial de Pothomorphe umbellata (L.) Miq. para o controle de Rhyzopertha dominica (Fabricius, 1792) (Coleoptera: Bostrichidae). Os testes para determinação da Concentração Letal (CL), teste de repelência e fumigação foram realizados. Os valores da CL50, obtidos para 24 horas e 48 horas, foram 0,21 e 0,12 μL/cm2, respectivamente. O óleo essencial foi mais eficaz nas 48 horas de avaliação do teste de toxicidade por contato. Houve efeito repelente sobre os insetos na CL5 (0,02μL/cm2), tanto na avaliação após uma hora, quanto na avaliação após 24 horas. Não houve efeito repelente na CL10 (0,03μL/cm2) e não foi possível identificar a CL50 para o controle por fumigação (pressão de vapor), podendo estar acima de 1,6 μL/cm3. O óleo essencial de P. umbellata apresenta potencial para o controle da praga de grãos armazenados como o R. dominica
Summary translation
The essential oils can affect negatively the growth, development and reproduction of several insects on stored products. The aim of this study was to detect the insectistatic effect of essential oil of Pothomorphe umbellata (L.) Miq. against Rhyzopertha dominica (Fabricius, 1792) (Coleoptera: Bostrichidae). Tests were made to determine the Lethal Concentration (LC), repellency and fumigation test. The LC50 values, obtained for 24 hours and 48 hours, were 0.21 e 0.12 μL/cm2, respectively. The essential oil was more effective in 48 hours of evaluation in toxicity by contact test. There was repellent effect on the insects in LC5 (0.02μL/cm2) in one hour after evaluation as than after 24 hours. There was no repellent effect in LC10 (0.03μL/cm2). It was not possible to identify the LC50 for fumigation test (vapor pressure), being possible to be above of 1.6 μL/cm3. The essential oil of P. umbellata has the potential to control the pest of stored grain as R. dominica.
| EPrint Type: | Journal paper |
|---|---|
| Keywords: | Agroecologia, Grãos armazenados, Trigo, Inseticida botânico, Besourinho-dos-cereais. Agroecology, Stored grains, Wheat, Botanical insecticide, Lesser grain borer. |
| Agrovoc keywords: | Language Value URI English agroecology http://aims.fao.org/aos/agrovoc/c_92381 English Wheats http://aims.fao.org/aos/agrovoc/c_8373 |
| Subjects: | Crop husbandry > Production systems Farming Systems Crop husbandry > Production systems > Cereals, pulses and oilseeds |
| Research affiliation: | Brazil > Other organizations Brazil |
| ISSN: | 1980-9735 |
| Related Links: | http://www.aba-agroecologia.org.br/revistas/index.php/rbagroecologia |
| Deposited By: | Pinto, Gabriela Franco |
| ID Code: | 26040 |
| Deposited On: | 29 Aug 2014 14:02 |
| Last Modified: | 29 Aug 2014 14:02 |
| Document Language: | Portuguese/Portugues |
| Status: | Published |
| Refereed: | Peer-reviewed and accepted |
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