Evaluation of the impact caused by boll weevil in the infested area of Campinas and Sorocaba, São Paulo State, in the 83/84 season

Detalhes bibliográficos
Autor(a) principal: Campanhola, Clayton
Data de Publicação: 2014
Outros Autores: Martin, Dial Franklin, Schattan, Salomão
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/13967
Resumo: The objective of this investigation was to evaluate the damage caused by the boll weevil and other pests that attack squares and bolls of cotton as well as controls used by growers in the boll weevil (Anthonomus grandis Boheman, 1843) infested area of São Paulo State, throughout the 1983/84 season. A survey was conducted in a random sample of farms in municipalities infested by the boll weevil in the Campinas and Sorocaba regions. There was a decrease of 19.9% and 32.9%, respectively, in the planting of cotton in the two regions during the 83/84 season as compared with the previous season. However in the 83/84 crop there was an increase in cotton yield per hectare of 26.8% and 29.9% in the Campinas and Sorocaba regions, respectively. The average number of spray applications increased from 2.8 to 4.1 in the 83/84 season over 82/83. Insecticides in descending order of use were: methyl parathion, endosulfan, endrin and monocrotophos. The losses on farms with the highest boll weevil damage was 4.7% in the Campinas region and 6.6% in the Sorocaba region. In the 83/84 crop the boll weevil caused more damage than pink bollworm, expressive pest in the region. 
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spelling Evaluation of the impact caused by boll weevil in the infested area of Campinas and Sorocaba, São Paulo State, in the 83/84 seasonAlgumas consequências da presença do bicudo-do-algodoeiro na região infestada de Campinas e Sorocaba, Estado de São Paulo, na safra 83/84Anthonomus grandis; survey; losses; economic importance; spraying costsAnthonomus grandis; levantamento; perdas; importância; custos de pulverizaçõesThe objective of this investigation was to evaluate the damage caused by the boll weevil and other pests that attack squares and bolls of cotton as well as controls used by growers in the boll weevil (Anthonomus grandis Boheman, 1843) infested area of São Paulo State, throughout the 1983/84 season. A survey was conducted in a random sample of farms in municipalities infested by the boll weevil in the Campinas and Sorocaba regions. There was a decrease of 19.9% and 32.9%, respectively, in the planting of cotton in the two regions during the 83/84 season as compared with the previous season. However in the 83/84 crop there was an increase in cotton yield per hectare of 26.8% and 29.9% in the Campinas and Sorocaba regions, respectively. The average number of spray applications increased from 2.8 to 4.1 in the 83/84 season over 82/83. Insecticides in descending order of use were: methyl parathion, endosulfan, endrin and monocrotophos. The losses on farms with the highest boll weevil damage was 4.7% in the Campinas region and 6.6% in the Sorocaba region. In the 83/84 crop the boll weevil caused more damage than pink bollworm, expressive pest in the region. Objetivou-se avaliar a área cultivada com algodoeiro, a produção e as perdas causadas pelo bicudo-do-algodoeiro (Anthonomus grandis Boheman, 1843) e outras pragas de estruturas produtivas, na região infestada do Estado de São Paulo, bem como detalhes do controle utilizado pelos agricultores contra o bicudo, durante a safra 83/84. Para isso, conduziu-se um levantamento em uma amostra de propriedades em municípios infestados por essa praga. Observou-se que nas DIRAs de Campinas e Sorocaba houve um decréscimo de 19,9% e 32,9%, respectivamente, na área plantada com algodão na safra 83/84 em relação à safra anterior. Na safra 83/84, embora tenha havido maior incidência da praga, houve um aumento de produtividade de algodão de 26,8% e 29,9% nas DIRAs de Campinas e Sorocaba, respectivamente, em relação à safra 82/83. O número de pulverizações com inseticidas se elevou de 2,8 a 4,1, em média, de 82/83 para 83/84. Os inseticidas mais utilizados, em ordem decrescente, foram: methyl parathion, endosulfan, endrin e monocrotophos. As propriedades com maiores danos de bicudo nas DIRAs de Campinas e Sorocaba, dentro da amostra estudada, apresentaram decréscimos na produção de, respectivamente, 4,7% e 6,6%. Na safra 83/84 o bicudo foi mais prejudicial que lagarta-rosada, praga de expressão na região. Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraCampanhola, ClaytonMartin, Dial FranklinSchattan, Salomão2014-04-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/13967Pesquisa Agropecuaria Brasileira; v.23, n.8, ago. 1988; 811-823Pesquisa Agropecuária Brasileira; v.23, n.8, ago. 1988; 811-8231678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/13967/7938info:eu-repo/semantics/openAccess2014-09-16T16:47:31Zoai:ojs.seer.sct.embrapa.br:article/13967Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-09-16T16:47:31Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Evaluation of the impact caused by boll weevil in the infested area of Campinas and Sorocaba, São Paulo State, in the 83/84 season
Algumas consequências da presença do bicudo-do-algodoeiro na região infestada de Campinas e Sorocaba, Estado de São Paulo, na safra 83/84
title Evaluation of the impact caused by boll weevil in the infested area of Campinas and Sorocaba, São Paulo State, in the 83/84 season
spellingShingle Evaluation of the impact caused by boll weevil in the infested area of Campinas and Sorocaba, São Paulo State, in the 83/84 season
Campanhola, Clayton
Anthonomus grandis; survey; losses; economic importance; spraying costs
Anthonomus grandis; levantamento; perdas; importância; custos de pulverizações
title_short Evaluation of the impact caused by boll weevil in the infested area of Campinas and Sorocaba, São Paulo State, in the 83/84 season
title_full Evaluation of the impact caused by boll weevil in the infested area of Campinas and Sorocaba, São Paulo State, in the 83/84 season
title_fullStr Evaluation of the impact caused by boll weevil in the infested area of Campinas and Sorocaba, São Paulo State, in the 83/84 season
title_full_unstemmed Evaluation of the impact caused by boll weevil in the infested area of Campinas and Sorocaba, São Paulo State, in the 83/84 season
title_sort Evaluation of the impact caused by boll weevil in the infested area of Campinas and Sorocaba, São Paulo State, in the 83/84 season
author Campanhola, Clayton
author_facet Campanhola, Clayton
Martin, Dial Franklin
Schattan, Salomão
author_role author
author2 Martin, Dial Franklin
Schattan, Salomão
author2_role author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Campanhola, Clayton
Martin, Dial Franklin
Schattan, Salomão
dc.subject.por.fl_str_mv Anthonomus grandis; survey; losses; economic importance; spraying costs
Anthonomus grandis; levantamento; perdas; importância; custos de pulverizações
topic Anthonomus grandis; survey; losses; economic importance; spraying costs
Anthonomus grandis; levantamento; perdas; importância; custos de pulverizações
description The objective of this investigation was to evaluate the damage caused by the boll weevil and other pests that attack squares and bolls of cotton as well as controls used by growers in the boll weevil (Anthonomus grandis Boheman, 1843) infested area of São Paulo State, throughout the 1983/84 season. A survey was conducted in a random sample of farms in municipalities infested by the boll weevil in the Campinas and Sorocaba regions. There was a decrease of 19.9% and 32.9%, respectively, in the planting of cotton in the two regions during the 83/84 season as compared with the previous season. However in the 83/84 crop there was an increase in cotton yield per hectare of 26.8% and 29.9% in the Campinas and Sorocaba regions, respectively. The average number of spray applications increased from 2.8 to 4.1 in the 83/84 season over 82/83. Insecticides in descending order of use were: methyl parathion, endosulfan, endrin and monocrotophos. The losses on farms with the highest boll weevil damage was 4.7% in the Campinas region and 6.6% in the Sorocaba region. In the 83/84 crop the boll weevil caused more damage than pink bollworm, expressive pest in the region. 
publishDate 2014
dc.date.none.fl_str_mv 2014-04-17
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/13967
url https://seer.sct.embrapa.br/index.php/pab/article/view/13967
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/13967/7938
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.23, n.8, ago. 1988; 811-823
Pesquisa Agropecuária Brasileira; v.23, n.8, ago. 1988; 811-823
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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