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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
13/09/2012 |
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Data da última atualização: |
13/09/2012 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MASCARIN, G. M.; DELALIBERA JUNIOR, I. |
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Afiliação: |
GABRIEL MOURA MASCARIN, CNPAF; ITALO DELALIBERA JUNIOR, ESALQ. |
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Título: |
Insecticidal activity of the granulosis virus in combination with neem products and talc powder against the potato tuberworm Phthorimaea operculella (Zeller) (Lepidoptera: Gelechiidae). |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Neotropical Entomology, Londrina, v. 41, n. 3, p. 23-231, 2012. |
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Idioma: |
Inglês |
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Conteúdo: |
The potato tuberworm Phthorimaea operculella (Zeller) is an important agricultural pest that causes significant economic losses to potato growers worldwide. The addition of an effective method of biological control for the potato tuberworm is greatly needed, and is currently unavailable in Brazil. The granulosis virus (Baculoviridae) is a promising biological control agent to protect post-harvest potatoes and in storage from the potato tuberworm. However, the control measure must be economically feasible. Liquid suspensions of a granulosis virus applied alone or in mixture with two commercial neem oil-based products (DalNeem? and NeemAzal?), and a dry powder formulation of viral granules were evaluated for control of potato tuberworm larvae by treating potato tubers under laboratory conditions. High larval mortality (86.7%) was achieved when DalNeem and virus were applied together at 4 mg of azadirachtin/L and 104 occlusion bodies (OBs)/mL, respectively. This combination resulted in ≥50% efficacy in relation to their counterparts alone. Conversely, NeemAzal did not enhance virus effectiveness against larvae of the potato tuberworm. The talc-based virus formulation was used for dusting seed tubers at different concentrations and resulted in 100% larval mortality at 5×108 OBs/g. Formulated and unformulated virus provided 50% mortality at 166 OBs/g and at 5.0× 105 OBs/mL, respectively. As a result, talc-based virus formulation had a better control efficiency on potato tuberworm than the aqueous virus suspension. The granulosis virus combined with DalNeem at low rates or formulated with talc powder is a viable option to control the potato tuberworm under storage conditions. MenosThe potato tuberworm Phthorimaea operculella (Zeller) is an important agricultural pest that causes significant economic losses to potato growers worldwide. The addition of an effective method of biological control for the potato tuberworm is greatly needed, and is currently unavailable in Brazil. The granulosis virus (Baculoviridae) is a promising biological control agent to protect post-harvest potatoes and in storage from the potato tuberworm. However, the control measure must be economically feasible. Liquid suspensions of a granulosis virus applied alone or in mixture with two commercial neem oil-based products (DalNeem? and NeemAzal?), and a dry powder formulation of viral granules were evaluated for control of potato tuberworm larvae by treating potato tubers under laboratory conditions. High larval mortality (86.7%) was achieved when DalNeem and virus were applied together at 4 mg of azadirachtin/L and 104 occlusion bodies (OBs)/mL, respectively. This combination resulted in ≥50% efficacy in relation to their counterparts alone. Conversely, NeemAzal did not enhance virus effectiveness against larvae of the potato tuberworm. The talc-based virus formulation was used for dusting seed tubers at different concentrations and resulted in 100% larval mortality at 5×108 OBs/g. Formulated and unformulated virus provided 50% mortality at 166 OBs/g and at 5.0× 105 OBs/mL, respectively. As a result, talc-based virus formulation had a better control efficiency on potato tub... Mostrar Tudo |
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Thesagro: |
Batata; Controle biológico; Nim; Praga de planta. |
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Thesaurus Nal: |
Biological control; Neem extracts; Phthorimaea operculella granulovirus. |
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Categoria do assunto: |
O Insetos e Entomologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/66182/1/v41n3p223-231.pdf
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Marc: |
LEADER 02470naa a2200217 a 4500
001 1933533
005 2012-09-13
008 2012 bl uuuu u00u1 u #d
100 1 $aMASCARIN, G. M.
245 $aInsecticidal activity of the granulosis virus in combination with neem products and talc powder against the potato tuberworm Phthorimaea operculella (Zeller) (Lepidoptera$bGelechiidae).$h[electronic resource]
260 $c2012
520 $aThe potato tuberworm Phthorimaea operculella (Zeller) is an important agricultural pest that causes significant economic losses to potato growers worldwide. The addition of an effective method of biological control for the potato tuberworm is greatly needed, and is currently unavailable in Brazil. The granulosis virus (Baculoviridae) is a promising biological control agent to protect post-harvest potatoes and in storage from the potato tuberworm. However, the control measure must be economically feasible. Liquid suspensions of a granulosis virus applied alone or in mixture with two commercial neem oil-based products (DalNeem? and NeemAzal?), and a dry powder formulation of viral granules were evaluated for control of potato tuberworm larvae by treating potato tubers under laboratory conditions. High larval mortality (86.7%) was achieved when DalNeem and virus were applied together at 4 mg of azadirachtin/L and 104 occlusion bodies (OBs)/mL, respectively. This combination resulted in ≥50% efficacy in relation to their counterparts alone. Conversely, NeemAzal did not enhance virus effectiveness against larvae of the potato tuberworm. The talc-based virus formulation was used for dusting seed tubers at different concentrations and resulted in 100% larval mortality at 5×108 OBs/g. Formulated and unformulated virus provided 50% mortality at 166 OBs/g and at 5.0× 105 OBs/mL, respectively. As a result, talc-based virus formulation had a better control efficiency on potato tuberworm than the aqueous virus suspension. The granulosis virus combined with DalNeem at low rates or formulated with talc powder is a viable option to control the potato tuberworm under storage conditions.
650 $aBiological control
650 $aNeem extracts
650 $aPhthorimaea operculella granulovirus
650 $aBatata
650 $aControle biológico
650 $aNim
650 $aPraga de planta
700 1 $aDELALIBERA JUNIOR, I.
773 $tNeotropical Entomology, Londrina$gv. 41, n. 3, p. 23-231, 2012.
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Embrapa Arroz e Feijão (CNPAF) |
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