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Registro Completo |
Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
13/03/2015 |
Data da última atualização: |
13/03/2015 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MARQUES, M. de A.; QUINTELA, E. D.; MASCARIN, G. M.; FERNANDES, P. M.; ARTHURS, S. P. |
Afiliação: |
MIRIAM DE ALMEIDA MARQUES, UFG; ELIANE DIAS QUINTELA, CNPAF; GABRIEL MOURA MASCARIN, CNPAF; PAULO MARÇAL FERNANDES, UFG; STEVEN PAUL ARTHURS, UNIVERSITY OF FLORIDA, Apopka. |
Título: |
Management of Bemisia tabaci biotype B with botanical and mineral oils. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
Crop Protection, v. 66, p. 127-132, Dec. 2014. |
ISSN: |
0261-2194 |
DOI: |
10.1016/j.cropro.2014.09.006 |
Idioma: |
Inglês |
Conteúdo: |
While the toxic effects of neem, Azadirachta indica A. Juss, on Bemisia tabaci Genn. are well documented, few studies have evaluated other oils. We compared neem, sesame, citrus, castor, vegetable and mineral oils (1% v/v) to a chemical standard thiamethoxam (0.17 g A.I./L) against B. tabaci biotype B life stages on dry bean plants Phaseolus vulgaris L. under screenhouse conditions. Oils and thiamethoxam exhibited low ovicidal activity (<10% egg mortality). However, significant mortality occurred due to the residual activity to 1st instars that emerged from treated eggs. Overall, impacts of egg treatments were greatest for thiamethoxam (77% total mortality for eggs and 1st instars) compared with oils which were statistically similar (22e29% mortality). Larvicidal effect of oils (against 2nd instars) was greater than ovicidal effects. Highest nymphal mortality (>81%) was achieved with castor, sesame, citrus and neem oils, which was significantly greater than for thiamethoxam (65% mortality). Adult whiteflies were exposed to fresh and aged spray residues, rather than being sprayed directly. In this case, comparatively lower efficacy was achieved from oil treatments compared with thiamethoxam. While some mortality was observed from fresh residues of slow drying oils (up to 41% for castor oil), no significant control from any oil residues >3 days old was observed in our tests. The different route of exposure against adults likely reduced the effectiveness of oil treatments which act directly on the cuticle. In trials with viruliferous adult whiteflies exposed to fresh residues, none of the tested products completely prevented transmission of bean golden mosaic virus (BGMV). However, we noted reduced virus severity ratings from plants pre-treated with castor and citrus oil. We conclude that castor, sesame, citrus and neem oils have the potential to be used in whitefly management programs. MenosWhile the toxic effects of neem, Azadirachta indica A. Juss, on Bemisia tabaci Genn. are well documented, few studies have evaluated other oils. We compared neem, sesame, citrus, castor, vegetable and mineral oils (1% v/v) to a chemical standard thiamethoxam (0.17 g A.I./L) against B. tabaci biotype B life stages on dry bean plants Phaseolus vulgaris L. under screenhouse conditions. Oils and thiamethoxam exhibited low ovicidal activity (<10% egg mortality). However, significant mortality occurred due to the residual activity to 1st instars that emerged from treated eggs. Overall, impacts of egg treatments were greatest for thiamethoxam (77% total mortality for eggs and 1st instars) compared with oils which were statistically similar (22e29% mortality). Larvicidal effect of oils (against 2nd instars) was greater than ovicidal effects. Highest nymphal mortality (>81%) was achieved with castor, sesame, citrus and neem oils, which was significantly greater than for thiamethoxam (65% mortality). Adult whiteflies were exposed to fresh and aged spray residues, rather than being sprayed directly. In this case, comparatively lower efficacy was achieved from oil treatments compared with thiamethoxam. While some mortality was observed from fresh residues of slow drying oils (up to 41% for castor oil), no significant control from any oil residues >3 days old was observed in our tests. The different route of exposure against adults likely reduced the effectiveness of oil treatments which... Mostrar Tudo |
Palavras-Chave: |
Bemisa tabaci. |
Thesagro: |
Controle biológico; Feijão; Mosca branca; Phaseolus vulgaris. |
Thesaurus Nal: |
Bean golden mosaic virus; Biopesticides; Horticultural oils; Insect control; Thiamethoxam. |
Categoria do assunto: |
O Insetos e Entomologia |
Marc: |
LEADER 02814naa a2200313 a 4500 001 2011363 005 2015-03-13 008 2014 bl uuuu u00u1 u #d 022 $a0261-2194 024 7 $a10.1016/j.cropro.2014.09.006$2DOI 100 1 $aMARQUES, M. de A. 245 $aManagement of Bemisia tabaci biotype B with botanical and mineral oils.$h[electronic resource] 260 $c2014 520 $aWhile the toxic effects of neem, Azadirachta indica A. Juss, on Bemisia tabaci Genn. are well documented, few studies have evaluated other oils. We compared neem, sesame, citrus, castor, vegetable and mineral oils (1% v/v) to a chemical standard thiamethoxam (0.17 g A.I./L) against B. tabaci biotype B life stages on dry bean plants Phaseolus vulgaris L. under screenhouse conditions. Oils and thiamethoxam exhibited low ovicidal activity (<10% egg mortality). However, significant mortality occurred due to the residual activity to 1st instars that emerged from treated eggs. Overall, impacts of egg treatments were greatest for thiamethoxam (77% total mortality for eggs and 1st instars) compared with oils which were statistically similar (22e29% mortality). Larvicidal effect of oils (against 2nd instars) was greater than ovicidal effects. Highest nymphal mortality (>81%) was achieved with castor, sesame, citrus and neem oils, which was significantly greater than for thiamethoxam (65% mortality). Adult whiteflies were exposed to fresh and aged spray residues, rather than being sprayed directly. In this case, comparatively lower efficacy was achieved from oil treatments compared with thiamethoxam. While some mortality was observed from fresh residues of slow drying oils (up to 41% for castor oil), no significant control from any oil residues >3 days old was observed in our tests. The different route of exposure against adults likely reduced the effectiveness of oil treatments which act directly on the cuticle. In trials with viruliferous adult whiteflies exposed to fresh residues, none of the tested products completely prevented transmission of bean golden mosaic virus (BGMV). However, we noted reduced virus severity ratings from plants pre-treated with castor and citrus oil. We conclude that castor, sesame, citrus and neem oils have the potential to be used in whitefly management programs. 650 $aBean golden mosaic virus 650 $aBiopesticides 650 $aHorticultural oils 650 $aInsect control 650 $aThiamethoxam 650 $aControle biológico 650 $aFeijão 650 $aMosca branca 650 $aPhaseolus vulgaris 653 $aBemisa tabaci 700 1 $aQUINTELA, E. D. 700 1 $aMASCARIN, G. M. 700 1 $aFERNANDES, P. M. 700 1 $aARTHURS, S. P. 773 $tCrop Protection$gv. 66, p. 127-132, Dec. 2014.
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Embrapa Arroz e Feijão (CNPAF) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
02/12/2013 |
Data da última atualização: |
20/09/2016 |
Tipo da produção científica: |
Artigo de Divulgação na Mídia |
Autoria: |
FACÓ, O.; SILVA, P. H. T. da; SHIOTSUKI, L.; LÔBO, R. N. B.; SILVA, K. de M.; MORAIS, O. R. de. |
Afiliação: |
Olivardo Facó, CNPC; Pedro Henrique Tomás da Silva; LUCIANA SHIOTSUKI, CNPC; Raimundo Nonato Braga Lôbo, CNPC; Kleibe de Moraes Silva, CNPC; Octávio Rossi de Morais, CNPC. |
Título: |
O padrão racial e o melhoramento genético da raça Morada Nova. |
Ano de publicação: |
2013 |
Fonte/Imprenta: |
Revista Arco, Bagé, v. 1, n. 2, p. 7-9, maio, 2013. |
Idioma: |
Português |
Palavras-Chave: |
Brasil; Indigenous organisms; Padrão racial; Raça Morada Nova; Raça nativa; Região Nordeste. |
Thesagro: |
Melhoramento genético animal; Ovino. |
Thesaurus NAL: |
Brazil; Sheep. |
Categoria do assunto: |
G Melhoramento Genético |
Marc: |
LEADER 00782naa a2200289 a 4500 001 1972599 005 2016-09-20 008 2013 bl uuuu u00u1 u #d 100 1 $aFACÓ, O. 245 $aO padrão racial e o melhoramento genético da raça Morada Nova. 260 $c2013 650 $aBrazil 650 $aSheep 650 $aMelhoramento genético animal 650 $aOvino 653 $aBrasil 653 $aIndigenous organisms 653 $aPadrão racial 653 $aRaça Morada Nova 653 $aRaça nativa 653 $aRegião Nordeste 700 1 $aSILVA, P. H. T. da 700 1 $aSHIOTSUKI, L. 700 1 $aLÔBO, R. N. B. 700 1 $aSILVA, K. de M. 700 1 $aMORAIS, O. R. de 773 $tRevista Arco, Bagé$gv. 1, n. 2, p. 7-9, maio, 2013.
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