Efficacy of optical brightener formulations of Spodoptera exigua multiple nucleopolyhedrovirus (SeMNPV) as a biological insecticide in greenhouses in southern Spain
The efficacy of optical brightener formulations of a native Spanish isolate of Spodoptera exigua multiple nucleopolyhedrovirus (SeMNPV) was determined for control of S. exigua on greenhouse grown sweet pepper ( Capsicum annuum) in Almeria, Spain. In laboratory bioassays involving diet surface contam...
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| Veröffentlicht in: | Biological control 2007, Vol.40 (1), p.89-96 |
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| creator | Lasa, Rodrigo Ruiz-Portero, Carmen Alcázar, María D. Belda, José E. Caballero, Primitivo Williams, Trevor |
| description | The efficacy of optical brightener formulations of a native Spanish isolate of
Spodoptera exigua multiple nucleopolyhedrovirus (SeMNPV) was determined for control of
S. exigua on greenhouse grown sweet pepper (
Capsicum annuum) in Almeria, Spain. In laboratory bioassays involving diet surface contamination, the 50% lethal concentration in fourth instars was reduced 25-fold and 5731-fold, compared to SeMNPV occlusion bodies (OBs) alone, or in mixtures with 0.1% and 1% of the stilbene-derived optical brightener leucophor AP, respectively. The efficacy of spray applications of 1
×
10
12 OBs/Ha SeMNPV alone, or in mixtures with 0.1% leucophor AP, was tested in a greenhouse planted with sweet pepper. The prevalence of virus infection in larvae collected at intervals post-application and reared on artificial diet in the laboratory was very high (62–97% mortality). Compared to the treatment involving SeMNPV OBs alone, OBs applied in mixtures with leucophor AP resulted in a significant increase in the prevalence of infection in larvae collected at 2
days post-application, but not in insects collected subsequently. In contrast, a chemical insecticide treatment, lufenuron, performed poorly ( |
| doi_str_mv | 10.1016/j.biocontrol.2006.06.015 |
| format | Article |
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Spodoptera exigua multiple nucleopolyhedrovirus (SeMNPV) was determined for control of
S. exigua on greenhouse grown sweet pepper (
Capsicum annuum) in Almeria, Spain. In laboratory bioassays involving diet surface contamination, the 50% lethal concentration in fourth instars was reduced 25-fold and 5731-fold, compared to SeMNPV occlusion bodies (OBs) alone, or in mixtures with 0.1% and 1% of the stilbene-derived optical brightener leucophor AP, respectively. The efficacy of spray applications of 1
×
10
12 OBs/Ha SeMNPV alone, or in mixtures with 0.1% leucophor AP, was tested in a greenhouse planted with sweet pepper. The prevalence of virus infection in larvae collected at intervals post-application and reared on artificial diet in the laboratory was very high (62–97% mortality). Compared to the treatment involving SeMNPV OBs alone, OBs applied in mixtures with leucophor AP resulted in a significant increase in the prevalence of infection in larvae collected at 2
days post-application, but not in insects collected subsequently. In contrast, a chemical insecticide treatment, lufenuron, performed poorly (<45% mortality). Persistence of OBs on leaf surfaces was examined by subjecting leaf samples to laboratory bioassay in second instar
S. exigua. The reduction in OB activity over an 8
day period was greater in leaves sampled from the upper crop canopy compared to those from the lower part of the plant but persistence was not improved in the presence of leucophor AP. The plastic greenhouse structure reduced the intensity of incident UV-B (280–315
nm) readings by ∼90% compared to external readings. Applications of leucophor AP did not adversely affect the growth of sweet pepper plants over a 14-day period. We conclude that SeMNPV should be adopted as a biological insecticide in greenhouses of this region.</description><identifier>ISSN: 1049-9644</identifier><identifier>EISSN: 1090-2112</identifier><identifier>DOI: 10.1016/j.biocontrol.2006.06.015</identifier><language>eng</language><publisher>Elsevier Inc</publisher><subject>Baculovirus ; Capsicum annuum ; Efficacy ; Formulation ; Greenhouse crops ; greenhouse production ; insect control ; lethal dose 50 ; leucophor AP ; Nuclear polyhedrosis virus ; Nucleopolyhedrovirus ; Persistence ; pesticide adjuvants ; pesticide formulations ; pesticide persistence ; plant growth ; Spodoptera exigua ; Spodoptera exigua multiple nucleopolyhedrovirus ; stilbenes ; Sweet pepper ; sweet peppers ; viral insecticides</subject><ispartof>Biological control, 2007, Vol.40 (1), p.89-96</ispartof><rights>2006 Elsevier Inc.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c373t-a1919feebd1c89a2183f49a2873d76a1aab0a97bc0056948ed15da2fc99e15593</citedby><cites>FETCH-LOGICAL-c373t-a1919feebd1c89a2183f49a2873d76a1aab0a97bc0056948ed15da2fc99e15593</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S1049964406001782$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,4010,27900,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Lasa, Rodrigo</creatorcontrib><creatorcontrib>Ruiz-Portero, Carmen</creatorcontrib><creatorcontrib>Alcázar, María D.</creatorcontrib><creatorcontrib>Belda, José E.</creatorcontrib><creatorcontrib>Caballero, Primitivo</creatorcontrib><creatorcontrib>Williams, Trevor</creatorcontrib><title>Efficacy of optical brightener formulations of Spodoptera exigua multiple nucleopolyhedrovirus (SeMNPV) as a biological insecticide in greenhouses in southern Spain</title><title>Biological control</title><description>The efficacy of optical brightener formulations of a native Spanish isolate of
Spodoptera exigua multiple nucleopolyhedrovirus (SeMNPV) was determined for control of
S. exigua on greenhouse grown sweet pepper (
Capsicum annuum) in Almeria, Spain. In laboratory bioassays involving diet surface contamination, the 50% lethal concentration in fourth instars was reduced 25-fold and 5731-fold, compared to SeMNPV occlusion bodies (OBs) alone, or in mixtures with 0.1% and 1% of the stilbene-derived optical brightener leucophor AP, respectively. The efficacy of spray applications of 1
×
10
12 OBs/Ha SeMNPV alone, or in mixtures with 0.1% leucophor AP, was tested in a greenhouse planted with sweet pepper. The prevalence of virus infection in larvae collected at intervals post-application and reared on artificial diet in the laboratory was very high (62–97% mortality). Compared to the treatment involving SeMNPV OBs alone, OBs applied in mixtures with leucophor AP resulted in a significant increase in the prevalence of infection in larvae collected at 2
days post-application, but not in insects collected subsequently. In contrast, a chemical insecticide treatment, lufenuron, performed poorly (<45% mortality). Persistence of OBs on leaf surfaces was examined by subjecting leaf samples to laboratory bioassay in second instar
S. exigua. The reduction in OB activity over an 8
day period was greater in leaves sampled from the upper crop canopy compared to those from the lower part of the plant but persistence was not improved in the presence of leucophor AP. The plastic greenhouse structure reduced the intensity of incident UV-B (280–315
nm) readings by ∼90% compared to external readings. Applications of leucophor AP did not adversely affect the growth of sweet pepper plants over a 14-day period. We conclude that SeMNPV should be adopted as a biological insecticide in greenhouses of this region.</description><subject>Baculovirus</subject><subject>Capsicum annuum</subject><subject>Efficacy</subject><subject>Formulation</subject><subject>Greenhouse crops</subject><subject>greenhouse production</subject><subject>insect control</subject><subject>lethal dose 50</subject><subject>leucophor AP</subject><subject>Nuclear polyhedrosis virus</subject><subject>Nucleopolyhedrovirus</subject><subject>Persistence</subject><subject>pesticide adjuvants</subject><subject>pesticide formulations</subject><subject>pesticide persistence</subject><subject>plant growth</subject><subject>Spodoptera exigua</subject><subject>Spodoptera exigua multiple nucleopolyhedrovirus</subject><subject>stilbenes</subject><subject>Sweet pepper</subject><subject>sweet peppers</subject><subject>viral insecticides</subject><issn>1049-9644</issn><issn>1090-2112</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNqFkc9u1DAQxiNEJUrLM-ATgkMWT_77CFWhlQqttJSrNXHGWa-8drCTin0fHhSHReKINNKM5d_MN_aXZQz4Bjg07_eb3njl3Ry83RScN5s1oH6WnQMXPC8AiudrXYlcNFX1InsZ455zgKrl59mva62NQnVkXjM_zam2rA9m3M3kKDDtw2GxOBvv4opsJz8kjAIy-mnGBVm6ns1kiblFWfKTt8cdDcE_mbBE9nZLX74-fH_HMDJkaVXrxz8axkVSSc4MlGo2BiK380ukuB6jX-YdBZf00LjL7EyjjfTqb77IHj9df7u6ye_uP99efbjLVdmWc44gQGiifgDVCSygK3WVcteWQ9sgIPYcRdsrzutGVB0NUA9YaCUEQV2L8iJ7c5o7Bf9joTjLg4mKrEVHaTVZ8LZsRMMT2J1AFXyMgbScgjlgOErgcrVF7uU_W-Rqi1wD6tT6-tSq0Uscg4nycVtwKJMjRQXtSnw8EZSe-mQoyKgMOUWDCenL5ODN_2V-A1N3qew</recordid><startdate>2007</startdate><enddate>2007</enddate><creator>Lasa, Rodrigo</creator><creator>Ruiz-Portero, Carmen</creator><creator>Alcázar, María D.</creator><creator>Belda, José E.</creator><creator>Caballero, Primitivo</creator><creator>Williams, Trevor</creator><general>Elsevier Inc</general><scope>FBQ</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SS</scope><scope>7T7</scope><scope>7U9</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>H94</scope><scope>P64</scope></search><sort><creationdate>2007</creationdate><title>Efficacy of optical brightener formulations of Spodoptera exigua multiple nucleopolyhedrovirus (SeMNPV) as a biological insecticide in greenhouses in southern Spain</title><author>Lasa, Rodrigo ; Ruiz-Portero, Carmen ; Alcázar, María D. ; Belda, José E. ; Caballero, Primitivo ; Williams, Trevor</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c373t-a1919feebd1c89a2183f49a2873d76a1aab0a97bc0056948ed15da2fc99e15593</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Baculovirus</topic><topic>Capsicum annuum</topic><topic>Efficacy</topic><topic>Formulation</topic><topic>Greenhouse crops</topic><topic>greenhouse production</topic><topic>insect control</topic><topic>lethal dose 50</topic><topic>leucophor AP</topic><topic>Nuclear polyhedrosis virus</topic><topic>Nucleopolyhedrovirus</topic><topic>Persistence</topic><topic>pesticide adjuvants</topic><topic>pesticide formulations</topic><topic>pesticide persistence</topic><topic>plant growth</topic><topic>Spodoptera exigua</topic><topic>Spodoptera exigua multiple nucleopolyhedrovirus</topic><topic>stilbenes</topic><topic>Sweet pepper</topic><topic>sweet peppers</topic><topic>viral insecticides</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lasa, Rodrigo</creatorcontrib><creatorcontrib>Ruiz-Portero, Carmen</creatorcontrib><creatorcontrib>Alcázar, María D.</creatorcontrib><creatorcontrib>Belda, José E.</creatorcontrib><creatorcontrib>Caballero, Primitivo</creatorcontrib><creatorcontrib>Williams, Trevor</creatorcontrib><collection>AGRIS</collection><collection>CrossRef</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Virology and AIDS Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Biological control</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lasa, Rodrigo</au><au>Ruiz-Portero, Carmen</au><au>Alcázar, María D.</au><au>Belda, José E.</au><au>Caballero, Primitivo</au><au>Williams, Trevor</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Efficacy of optical brightener formulations of Spodoptera exigua multiple nucleopolyhedrovirus (SeMNPV) as a biological insecticide in greenhouses in southern Spain</atitle><jtitle>Biological control</jtitle><date>2007</date><risdate>2007</risdate><volume>40</volume><issue>1</issue><spage>89</spage><epage>96</epage><pages>89-96</pages><issn>1049-9644</issn><eissn>1090-2112</eissn><abstract>The efficacy of optical brightener formulations of a native Spanish isolate of
Spodoptera exigua multiple nucleopolyhedrovirus (SeMNPV) was determined for control of
S. exigua on greenhouse grown sweet pepper (
Capsicum annuum) in Almeria, Spain. In laboratory bioassays involving diet surface contamination, the 50% lethal concentration in fourth instars was reduced 25-fold and 5731-fold, compared to SeMNPV occlusion bodies (OBs) alone, or in mixtures with 0.1% and 1% of the stilbene-derived optical brightener leucophor AP, respectively. The efficacy of spray applications of 1
×
10
12 OBs/Ha SeMNPV alone, or in mixtures with 0.1% leucophor AP, was tested in a greenhouse planted with sweet pepper. The prevalence of virus infection in larvae collected at intervals post-application and reared on artificial diet in the laboratory was very high (62–97% mortality). Compared to the treatment involving SeMNPV OBs alone, OBs applied in mixtures with leucophor AP resulted in a significant increase in the prevalence of infection in larvae collected at 2
days post-application, but not in insects collected subsequently. In contrast, a chemical insecticide treatment, lufenuron, performed poorly (<45% mortality). Persistence of OBs on leaf surfaces was examined by subjecting leaf samples to laboratory bioassay in second instar
S. exigua. The reduction in OB activity over an 8
day period was greater in leaves sampled from the upper crop canopy compared to those from the lower part of the plant but persistence was not improved in the presence of leucophor AP. The plastic greenhouse structure reduced the intensity of incident UV-B (280–315
nm) readings by ∼90% compared to external readings. Applications of leucophor AP did not adversely affect the growth of sweet pepper plants over a 14-day period. We conclude that SeMNPV should be adopted as a biological insecticide in greenhouses of this region.</abstract><pub>Elsevier Inc</pub><doi>10.1016/j.biocontrol.2006.06.015</doi><tpages>8</tpages></addata></record> |
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| ispartof | Biological control, 2007, Vol.40 (1), p.89-96 |
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| source | Elsevier ScienceDirect Journals |
| subjects | Baculovirus Capsicum annuum Efficacy Formulation Greenhouse crops greenhouse production insect control lethal dose 50 leucophor AP Nuclear polyhedrosis virus Nucleopolyhedrovirus Persistence pesticide adjuvants pesticide formulations pesticide persistence plant growth Spodoptera exigua Spodoptera exigua multiple nucleopolyhedrovirus stilbenes Sweet pepper sweet peppers viral insecticides |
| title | Efficacy of optical brightener formulations of Spodoptera exigua multiple nucleopolyhedrovirus (SeMNPV) as a biological insecticide in greenhouses in southern Spain |
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