Influence of Mahanarva fimbriolata (Stål) (Hemiptera: Cercopidae) injury on the quality of cane juice

Detalhes bibliográficos
Autor(a) principal: Madaleno,Leonardo L.
Data de Publicação: 2008
Outros Autores: Ravaneli,Gisele C., Presotti,Leandro E., Mutton,Miguel A., Fernandes,Odair A., Mutton,Márcia J.R.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Neotropical entomology (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2008000100010
Resumo: Mahanarva fimbriolata (Stål) is an important pest in Latin America and causes significant reduction in sugarcane productivity. There is no information regarding the effect of this pest on the quality of cane juice used for sugar and alcohol production. This work aimed at evaluating the quality of sugarcane juice from plants attacked by spittlebugs. The experiment was arranged in a completely randomized design with 15 replications, and comprised two treatments: control and chemical treatment with thiamethoxam. An average of 9.2 ± 4.44 spittlebug nymphs m-1 were found in the plots prior to insecticide application. Nymphs were counted 18, 35, 55, and 82 days after the initial sampling (december/2003). During the mid growing season (July 2004), the juice was extracted from stalks and analyzed for Brix, Pol, RS, pH, fiber, purity, TRS, dextran, starch, and total phenolic compounds. Stalk yield was also measured. Chemical treatment was efficient in reducing spittlebug population, and elevated both stalk yield and juice pH. The accumulated infestation expressed as insect-days was significantly and negatively correlated to yield, Pol, pH, and purity. The concentration of phenolic compounds increased with pest infestation, while dextran and starch levels were not affected. The infestation of 2.4 and 7.3 nymphs m-1 day-1 caused reductions of 8.3% and 29.8% in yield; 1.9% and 5.8% in Pol; 0.4% and 1.1% in pH and 0.4% and 1.2% in purity, respectively, in comparison to areas where the pest population was extremely low (< 0.1 nymphs m-1).
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spelling Influence of Mahanarva fimbriolata (Stål) (Hemiptera: Cercopidae) injury on the quality of cane juiceSpittlebuginsect-daychemical controlMahanarva fimbriolata (Stål) is an important pest in Latin America and causes significant reduction in sugarcane productivity. There is no information regarding the effect of this pest on the quality of cane juice used for sugar and alcohol production. This work aimed at evaluating the quality of sugarcane juice from plants attacked by spittlebugs. The experiment was arranged in a completely randomized design with 15 replications, and comprised two treatments: control and chemical treatment with thiamethoxam. An average of 9.2 ± 4.44 spittlebug nymphs m-1 were found in the plots prior to insecticide application. Nymphs were counted 18, 35, 55, and 82 days after the initial sampling (december/2003). During the mid growing season (July 2004), the juice was extracted from stalks and analyzed for Brix, Pol, RS, pH, fiber, purity, TRS, dextran, starch, and total phenolic compounds. Stalk yield was also measured. Chemical treatment was efficient in reducing spittlebug population, and elevated both stalk yield and juice pH. The accumulated infestation expressed as insect-days was significantly and negatively correlated to yield, Pol, pH, and purity. The concentration of phenolic compounds increased with pest infestation, while dextran and starch levels were not affected. The infestation of 2.4 and 7.3 nymphs m-1 day-1 caused reductions of 8.3% and 29.8% in yield; 1.9% and 5.8% in Pol; 0.4% and 1.1% in pH and 0.4% and 1.2% in purity, respectively, in comparison to areas where the pest population was extremely low (< 0.1 nymphs m-1).Sociedade Entomológica do Brasil2008-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2008000100010Neotropical Entomology v.37 n.1 2008reponame:Neotropical entomology (Online)instname:Sociedade Entomológica do Brasil (SEB)instacron:SEB10.1590/S1519-566X2008000100010info:eu-repo/semantics/openAccessMadaleno,Leonardo L.Ravaneli,Gisele C.Presotti,Leandro E.Mutton,Miguel A.Fernandes,Odair A.Mutton,Márcia J.R.eng2008-03-17T00:00:00Zoai:scielo:S1519-566X2008000100010Revistahttp://www.scielo.br/neONGhttps://old.scielo.br/oai/scielo-oai.php||editor@seb.org.br1678-80521519-566Xopendoar:2008-03-17T00:00Neotropical entomology (Online) - Sociedade Entomológica do Brasil (SEB)false
dc.title.none.fl_str_mv Influence of Mahanarva fimbriolata (Stål) (Hemiptera: Cercopidae) injury on the quality of cane juice
title Influence of Mahanarva fimbriolata (Stål) (Hemiptera: Cercopidae) injury on the quality of cane juice
spellingShingle Influence of Mahanarva fimbriolata (Stål) (Hemiptera: Cercopidae) injury on the quality of cane juice
Madaleno,Leonardo L.
Spittlebug
insect-day
chemical control
title_short Influence of Mahanarva fimbriolata (Stål) (Hemiptera: Cercopidae) injury on the quality of cane juice
title_full Influence of Mahanarva fimbriolata (Stål) (Hemiptera: Cercopidae) injury on the quality of cane juice
title_fullStr Influence of Mahanarva fimbriolata (Stål) (Hemiptera: Cercopidae) injury on the quality of cane juice
title_full_unstemmed Influence of Mahanarva fimbriolata (Stål) (Hemiptera: Cercopidae) injury on the quality of cane juice
title_sort Influence of Mahanarva fimbriolata (Stål) (Hemiptera: Cercopidae) injury on the quality of cane juice
author Madaleno,Leonardo L.
author_facet Madaleno,Leonardo L.
Ravaneli,Gisele C.
Presotti,Leandro E.
Mutton,Miguel A.
Fernandes,Odair A.
Mutton,Márcia J.R.
author_role author
author2 Ravaneli,Gisele C.
Presotti,Leandro E.
Mutton,Miguel A.
Fernandes,Odair A.
Mutton,Márcia J.R.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Madaleno,Leonardo L.
Ravaneli,Gisele C.
Presotti,Leandro E.
Mutton,Miguel A.
Fernandes,Odair A.
Mutton,Márcia J.R.
dc.subject.por.fl_str_mv Spittlebug
insect-day
chemical control
topic Spittlebug
insect-day
chemical control
description Mahanarva fimbriolata (Stål) is an important pest in Latin America and causes significant reduction in sugarcane productivity. There is no information regarding the effect of this pest on the quality of cane juice used for sugar and alcohol production. This work aimed at evaluating the quality of sugarcane juice from plants attacked by spittlebugs. The experiment was arranged in a completely randomized design with 15 replications, and comprised two treatments: control and chemical treatment with thiamethoxam. An average of 9.2 ± 4.44 spittlebug nymphs m-1 were found in the plots prior to insecticide application. Nymphs were counted 18, 35, 55, and 82 days after the initial sampling (december/2003). During the mid growing season (July 2004), the juice was extracted from stalks and analyzed for Brix, Pol, RS, pH, fiber, purity, TRS, dextran, starch, and total phenolic compounds. Stalk yield was also measured. Chemical treatment was efficient in reducing spittlebug population, and elevated both stalk yield and juice pH. The accumulated infestation expressed as insect-days was significantly and negatively correlated to yield, Pol, pH, and purity. The concentration of phenolic compounds increased with pest infestation, while dextran and starch levels were not affected. The infestation of 2.4 and 7.3 nymphs m-1 day-1 caused reductions of 8.3% and 29.8% in yield; 1.9% and 5.8% in Pol; 0.4% and 1.1% in pH and 0.4% and 1.2% in purity, respectively, in comparison to areas where the pest population was extremely low (< 0.1 nymphs m-1).
publishDate 2008
dc.date.none.fl_str_mv 2008-02-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2008000100010
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2008000100010
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1519-566X2008000100010
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Entomológica do Brasil
publisher.none.fl_str_mv Sociedade Entomológica do Brasil
dc.source.none.fl_str_mv Neotropical Entomology v.37 n.1 2008
reponame:Neotropical entomology (Online)
instname:Sociedade Entomológica do Brasil (SEB)
instacron:SEB
instname_str Sociedade Entomológica do Brasil (SEB)
instacron_str SEB
institution SEB
reponame_str Neotropical entomology (Online)
collection Neotropical entomology (Online)
repository.name.fl_str_mv Neotropical entomology (Online) - Sociedade Entomológica do Brasil (SEB)
repository.mail.fl_str_mv ||editor@seb.org.br
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