Mortality of Bemisia tabaci biotype B (sternorrhyncha: aleyrodidae) adults by aliphatic and aromatic synthetic sucrose esters

The B-strain of Bemisia tabaci Gennadius is a key pest of several crops and chemical control is the main control method used by growers, although reduction in efficacy due to insecticide resistance has already been reported. The aim of this work was to investigate the insecticidal effect of an array...

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Main Authors: Mariangela Alves, Maurício Boscolo, Odair Aparecido Fernandes, Maria Andréia Nunes
Format: Article
Language:English
Published: Instituto de Tecnologia do Paraná (Tecpar) 2008-12-01
Series:Brazilian Archives of Biology and Technology
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000600005
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spelling doaj-09dccba343864a13a7bfbb66896f9e832020-11-24T22:56:57ZengInstituto de Tecnologia do Paraná (Tecpar)Brazilian Archives of Biology and Technology1516-89131678-43242008-12-015161115111910.1590/S1516-89132008000600005Mortality of Bemisia tabaci biotype B (sternorrhyncha: aleyrodidae) adults by aliphatic and aromatic synthetic sucrose estersMariangela AlvesMaurício BoscoloOdair Aparecido FernandesMaria Andréia NunesThe B-strain of Bemisia tabaci Gennadius is a key pest of several crops and chemical control is the main control method used by growers, although reduction in efficacy due to insecticide resistance has already been reported. The aim of this work was to investigate the insecticidal effect of an array of synthetic sucrose esters with the aliphatic and aromatic groups on whitefly adults. Sucrose butyrate, caprate, octanoate, palmitate, oleate, octaacetate, phthalate, benzoate, and sucrose diacetate hexaisobutyrate were tested. The solutions were prepared and applied on the adults caught on yellow sticky traps using the Potter spray tower. Long-chains sucrose aliphatic esters were more effective against the silverleaf whiteflies and the highest mortality was obtained with sucrose oleate and sucrose octanoate. Since these compounds were tensoactive, sodium dodecylsulphate was also tested for the comparison but no effect was observed. Sucrose butyrate and other aliphatic and aromatic sucrose polyesters showed negligible effect on the silverleaf whiteflies.<br>O biótipo B de B. tabaci Gennadius tem se destacado como uma praga-chave de diversas culturas. O controle químico tem sido a principal tática de controle utilizada, embora já se tenha observado redução na eficiência dos produtos devido ao desenvolvimento de resistência. Assim, o objetivo do presente trabalho foi avaliar o efeito de diversos ésteres de sacarose com grupos alifáticos ou aromáticos sobre adultos de mosca-branca. Butirato de sacarose, caprato, octanoato, palmitato, oleato, actaacetato, ftlato, benzoato e diacetato hexaisobutirato de sacarose foram testados. Soluções de éster de sacarose foram preparadas e aplicadas sobre adultos capturados em armadilhas adesivas utilizando Torre de Potter. Ésteres alifáticos de sacarose com longas cadeias foram mais efetivos contra mosca-branca e as maiores taxas de mortalidade foram obtidas com oleato e octanoato de sacarose. Uma vez que estes compostos são caracterizados como tensoativos, dodecilsulfato de sódio foi testado para comparação e não se observou qualquer efeito. Butirato de sacarose e outros poliésteres de sacarose alifáticos ou aromáticos foram praticamente inócuos para mosca-branca.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000600005Sucroesterssilverleaf whiteflypest controlintegrated pest management
collection DOAJ
language English
format Article
sources DOAJ
author Mariangela Alves
Maurício Boscolo
Odair Aparecido Fernandes
Maria Andréia Nunes
spellingShingle Mariangela Alves
Maurício Boscolo
Odair Aparecido Fernandes
Maria Andréia Nunes
Mortality of Bemisia tabaci biotype B (sternorrhyncha: aleyrodidae) adults by aliphatic and aromatic synthetic sucrose esters
Brazilian Archives of Biology and Technology
Sucroesters
silverleaf whitefly
pest control
integrated pest management
author_facet Mariangela Alves
Maurício Boscolo
Odair Aparecido Fernandes
Maria Andréia Nunes
author_sort Mariangela Alves
title Mortality of Bemisia tabaci biotype B (sternorrhyncha: aleyrodidae) adults by aliphatic and aromatic synthetic sucrose esters
title_short Mortality of Bemisia tabaci biotype B (sternorrhyncha: aleyrodidae) adults by aliphatic and aromatic synthetic sucrose esters
title_full Mortality of Bemisia tabaci biotype B (sternorrhyncha: aleyrodidae) adults by aliphatic and aromatic synthetic sucrose esters
title_fullStr Mortality of Bemisia tabaci biotype B (sternorrhyncha: aleyrodidae) adults by aliphatic and aromatic synthetic sucrose esters
title_full_unstemmed Mortality of Bemisia tabaci biotype B (sternorrhyncha: aleyrodidae) adults by aliphatic and aromatic synthetic sucrose esters
title_sort mortality of bemisia tabaci biotype b (sternorrhyncha: aleyrodidae) adults by aliphatic and aromatic synthetic sucrose esters
publisher Instituto de Tecnologia do Paraná (Tecpar)
series Brazilian Archives of Biology and Technology
issn 1516-8913
1678-4324
publishDate 2008-12-01
description The B-strain of Bemisia tabaci Gennadius is a key pest of several crops and chemical control is the main control method used by growers, although reduction in efficacy due to insecticide resistance has already been reported. The aim of this work was to investigate the insecticidal effect of an array of synthetic sucrose esters with the aliphatic and aromatic groups on whitefly adults. Sucrose butyrate, caprate, octanoate, palmitate, oleate, octaacetate, phthalate, benzoate, and sucrose diacetate hexaisobutyrate were tested. The solutions were prepared and applied on the adults caught on yellow sticky traps using the Potter spray tower. Long-chains sucrose aliphatic esters were more effective against the silverleaf whiteflies and the highest mortality was obtained with sucrose oleate and sucrose octanoate. Since these compounds were tensoactive, sodium dodecylsulphate was also tested for the comparison but no effect was observed. Sucrose butyrate and other aliphatic and aromatic sucrose polyesters showed negligible effect on the silverleaf whiteflies.<br>O biótipo B de B. tabaci Gennadius tem se destacado como uma praga-chave de diversas culturas. O controle químico tem sido a principal tática de controle utilizada, embora já se tenha observado redução na eficiência dos produtos devido ao desenvolvimento de resistência. Assim, o objetivo do presente trabalho foi avaliar o efeito de diversos ésteres de sacarose com grupos alifáticos ou aromáticos sobre adultos de mosca-branca. Butirato de sacarose, caprato, octanoato, palmitato, oleato, actaacetato, ftlato, benzoato e diacetato hexaisobutirato de sacarose foram testados. Soluções de éster de sacarose foram preparadas e aplicadas sobre adultos capturados em armadilhas adesivas utilizando Torre de Potter. Ésteres alifáticos de sacarose com longas cadeias foram mais efetivos contra mosca-branca e as maiores taxas de mortalidade foram obtidas com oleato e octanoato de sacarose. Uma vez que estes compostos são caracterizados como tensoativos, dodecilsulfato de sódio foi testado para comparação e não se observou qualquer efeito. Butirato de sacarose e outros poliésteres de sacarose alifáticos ou aromáticos foram praticamente inócuos para mosca-branca.
topic Sucroesters
silverleaf whitefly
pest control
integrated pest management
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000600005
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