Insecticidal activity of plant extracts on Dysmicoccus brevipes in pineapple
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://scielo.pt/scielo.php?script=sci_arttext&pid=S0871-018X2020000100175 |
Resumo: | Abstract Dysmicoccus brevipes is an insect that can cause many losses in the pineapple crop. Thus, it is necessary to study alternative methods to chemical control. The objective of this study was evaluate the insecticidal activity of extracts of Azadiractha indica and Cyperus iria on D. brevipes in pineapple. Tests were carried out on: colonization of D. brevipes and growth of pineapple plants; mortality of this insect by the application of extracts directly and by residual contact, with five repetitions in completely randomized design. Each repetition was composed by one plant to test of colonization of D. brevipes and growth of pineapple plants, and a Petri dish with ten female nymphs of 2nd instar to evaluate the mortality of D. brevipes by application of extracts directly and by residual contact. The treatments tested were: 1) control 1 (water); 2) control 2 (insecticide Evidence( WG, imidacloprid 700 g kg-1); 3 and 4) aqueous extract of A. indica at 5% and 10%, respectively; 5 and 6) aqueous extract of C. iria at 5% and 10%, respectively. The data were submitted to analysis of variance and Scott-Knott’s test at the 5% level of significance. It was found that extracts A. indica 10% and C. iria 5% and 10% sprayed once in pineapple plants may adversely affect D. brevipes population, not interfering with pineapple growth. Therefore, these extracts have a potential to be used in Integrated Management of Pests associated with other control methods. |
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Insecticidal activity of plant extracts on Dysmicoccus brevipes in pineapplemealybugneemCyperus iriaAnanas comosusAbstract Dysmicoccus brevipes is an insect that can cause many losses in the pineapple crop. Thus, it is necessary to study alternative methods to chemical control. The objective of this study was evaluate the insecticidal activity of extracts of Azadiractha indica and Cyperus iria on D. brevipes in pineapple. Tests were carried out on: colonization of D. brevipes and growth of pineapple plants; mortality of this insect by the application of extracts directly and by residual contact, with five repetitions in completely randomized design. Each repetition was composed by one plant to test of colonization of D. brevipes and growth of pineapple plants, and a Petri dish with ten female nymphs of 2nd instar to evaluate the mortality of D. brevipes by application of extracts directly and by residual contact. The treatments tested were: 1) control 1 (water); 2) control 2 (insecticide Evidence( WG, imidacloprid 700 g kg-1); 3 and 4) aqueous extract of A. indica at 5% and 10%, respectively; 5 and 6) aqueous extract of C. iria at 5% and 10%, respectively. The data were submitted to analysis of variance and Scott-Knott’s test at the 5% level of significance. It was found that extracts A. indica 10% and C. iria 5% and 10% sprayed once in pineapple plants may adversely affect D. brevipes population, not interfering with pineapple growth. Therefore, these extracts have a potential to be used in Integrated Management of Pests associated with other control methods.Sociedade de Ciências Agrárias de Portugal2020-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0871-018X2020000100175Revista de Ciências Agrárias v.43 n.1 2020reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAPenghttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0871-018X2020000100175Lira,Josélia A.Pereira,Rosane R. da C.Costa,Leidiane de O.Nogueira,Rayele C. C.Pereira,Carlos E.info:eu-repo/semantics/openAccess2024-02-06T17:02:50Zoai:scielo:S0871-018X2020000100175Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:17:44.043013Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Insecticidal activity of plant extracts on Dysmicoccus brevipes in pineapple |
title |
Insecticidal activity of plant extracts on Dysmicoccus brevipes in pineapple |
spellingShingle |
Insecticidal activity of plant extracts on Dysmicoccus brevipes in pineapple Lira,Josélia A. mealybug neem Cyperus iria Ananas comosus |
title_short |
Insecticidal activity of plant extracts on Dysmicoccus brevipes in pineapple |
title_full |
Insecticidal activity of plant extracts on Dysmicoccus brevipes in pineapple |
title_fullStr |
Insecticidal activity of plant extracts on Dysmicoccus brevipes in pineapple |
title_full_unstemmed |
Insecticidal activity of plant extracts on Dysmicoccus brevipes in pineapple |
title_sort |
Insecticidal activity of plant extracts on Dysmicoccus brevipes in pineapple |
author |
Lira,Josélia A. |
author_facet |
Lira,Josélia A. Pereira,Rosane R. da C. Costa,Leidiane de O. Nogueira,Rayele C. C. Pereira,Carlos E. |
author_role |
author |
author2 |
Pereira,Rosane R. da C. Costa,Leidiane de O. Nogueira,Rayele C. C. Pereira,Carlos E. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Lira,Josélia A. Pereira,Rosane R. da C. Costa,Leidiane de O. Nogueira,Rayele C. C. Pereira,Carlos E. |
dc.subject.por.fl_str_mv |
mealybug neem Cyperus iria Ananas comosus |
topic |
mealybug neem Cyperus iria Ananas comosus |
description |
Abstract Dysmicoccus brevipes is an insect that can cause many losses in the pineapple crop. Thus, it is necessary to study alternative methods to chemical control. The objective of this study was evaluate the insecticidal activity of extracts of Azadiractha indica and Cyperus iria on D. brevipes in pineapple. Tests were carried out on: colonization of D. brevipes and growth of pineapple plants; mortality of this insect by the application of extracts directly and by residual contact, with five repetitions in completely randomized design. Each repetition was composed by one plant to test of colonization of D. brevipes and growth of pineapple plants, and a Petri dish with ten female nymphs of 2nd instar to evaluate the mortality of D. brevipes by application of extracts directly and by residual contact. The treatments tested were: 1) control 1 (water); 2) control 2 (insecticide Evidence( WG, imidacloprid 700 g kg-1); 3 and 4) aqueous extract of A. indica at 5% and 10%, respectively; 5 and 6) aqueous extract of C. iria at 5% and 10%, respectively. The data were submitted to analysis of variance and Scott-Knott’s test at the 5% level of significance. It was found that extracts A. indica 10% and C. iria 5% and 10% sprayed once in pineapple plants may adversely affect D. brevipes population, not interfering with pineapple growth. Therefore, these extracts have a potential to be used in Integrated Management of Pests associated with other control methods. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-03-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0871-018X2020000100175 |
url |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0871-018X2020000100175 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0871-018X2020000100175 |
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 de Ciências Agrárias de Portugal |
publisher.none.fl_str_mv |
Sociedade de Ciências Agrárias de Portugal |
dc.source.none.fl_str_mv |
Revista de Ciências Agrárias v.43 n.1 2020 reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799137270303817728 |