Insecticide resistance in Colombia and Ecuador

Farmer interviews conducted as part of extensive on-farm surveys for the diagnostic phase of the Tropical Whitefly Integrated Pest Management (TWF-IPM) Project (Rodríguez and Cardona, 2001; Chapter 4.1, this volume) showed that insecticide use against whiteflies in Colombia and Ecuador is excessive....

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Autores principales:	López Ávila, Aristóbulo, Cárdona, Cesar, Isaura, Rodríguez, Rendón, Francisco
Formato:	book part
Lenguaje:	Español
Publicado:	Centro Internacional de Agricultura Tropical - CIAT 2005
Materias:	Plagas de las plantas - H10 Insecticidas Fumigación Plagas Biotipos Transversal
Acceso en línea:	http://hdl.handle.net/20.500.12324/18636

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spelling	RepoAGROSAVIA186362022-11-30T16:20:03Z Insecticide resistance in Colombia and Ecuador López Ávila, Aristóbulo Cárdona, Cesar Isaura, Rodríguez Rendón, Francisco Plagas de las plantas - H10 Insecticidas Fumigación Plagas Biotipos Transversal Farmer interviews conducted as part of extensive on-farm surveys for the diagnostic phase of the Tropical Whitefly Integrated Pest Management (TWF-IPM) Project (Rodríguez and Cardona, 2001; Chapter 4.1, this volume) showed that insecticide use against whiteflies in Colombia and Ecuador is excessive. In the tropical highlands and mid-altitude valleys, farmers spray their crops 5 to 6 times on average to control Trialeurodes vaporariorum (Westwood). The mean number of applications against the B biotype of Bemisia tabaci (Gennadius) in the tropical lowlands of Colombia and Ecuador was estimated at 6.5. Over-reliance on insecticides for whitefly control is so widespread that 30% of 325 farmers interviewed reported that they make more than 10 applications per cropping season. The frequency of applications in many cases is as high as two to three times per week. Most farmers complained about the limited control achieved by conventional insecticides and many farmers are now using novel insecticides such as buprofezin, pyriproxyfen, diafenthiuron and imidacloprid reportedly with better results. However, the 10 most widely used insecticides identified in the surveys comprised nine conventional products—dimethoate, carbofuran, chlorpyriphos, methamidophos, methomyl, profenofos, monocrotophos, cypermethrin and malathion—and only one of these novel insecticides, imidacloprid. The high toxicity of several of the conventional products in widespread use raises concerns over both human and environmental health, underlining the need for alternative approaches based on IPM 2005 book part Capítulo http://purl.org/coar/resource_type/c_3248 info:eu-repo/semantics/bookPart http://purl.org/redcol/resource_type/CAP_LIB http://purl.org/coar/version/c_970fb48d4fbd8a85 http://hdl.handle.net/20.500.12324/18636 55290 reponame:Biblioteca Digital Agropecuaria de Colombia repourl:https://repository.agrosavia.co instname:Corporación colombiana de investigación agropecuaria AGROSAVIA spa 285 294 Whitefly and Whitefly-borne Viruses in the Tropics. Building a Knowledge base for Global Action Attribution-NonCommercial-ShareAlike 4.0 International http://creativecommons.org/licenses/by-nc-sa/4.0/ info:eu-repo/semantics/openAccess application/pdf application/pdf Colombia Centro Internacional de Agricultura Tropical - CIAT Cali, (Colombia)
institution	Corporación Colombiana de Investigación Agropecuaria
collection	Repositorio AGROSAVIA
language	Español
topic	Plagas de las plantas - H10 Insecticidas Fumigación Plagas Biotipos Transversal
spellingShingle	Plagas de las plantas - H10 Insecticidas Fumigación Plagas Biotipos Transversal López Ávila, Aristóbulo Cárdona, Cesar Isaura, Rodríguez Rendón, Francisco Insecticide resistance in Colombia and Ecuador
description	Farmer interviews conducted as part of extensive on-farm surveys for the diagnostic phase of the Tropical Whitefly Integrated Pest Management (TWF-IPM) Project (Rodríguez and Cardona, 2001; Chapter 4.1, this volume) showed that insecticide use against whiteflies in Colombia and Ecuador is excessive. In the tropical highlands and mid-altitude valleys, farmers spray their crops 5 to 6 times on average to control Trialeurodes vaporariorum (Westwood). The mean number of applications against the B biotype of Bemisia tabaci (Gennadius) in the tropical lowlands of Colombia and Ecuador was estimated at 6.5. Over-reliance on insecticides for whitefly control is so widespread that 30% of 325 farmers interviewed reported that they make more than 10 applications per cropping season. The frequency of applications in many cases is as high as two to three times per week. Most farmers complained about the limited control achieved by conventional insecticides and many farmers are now using novel insecticides such as buprofezin, pyriproxyfen, diafenthiuron and imidacloprid reportedly with better results. However, the 10 most widely used insecticides identified in the surveys comprised nine conventional products—dimethoate, carbofuran, chlorpyriphos, methamidophos, methomyl, profenofos, monocrotophos, cypermethrin and malathion—and only one of these novel insecticides, imidacloprid. The high toxicity of several of the conventional products in widespread use raises concerns over both human and environmental health, underlining the need for alternative approaches based on IPM
format	book part
author	López Ávila, Aristóbulo Cárdona, Cesar Isaura, Rodríguez Rendón, Francisco
author_facet	López Ávila, Aristóbulo Cárdona, Cesar Isaura, Rodríguez Rendón, Francisco
author_sort	López Ávila, Aristóbulo
title	Insecticide resistance in Colombia and Ecuador
title_short	Insecticide resistance in Colombia and Ecuador
title_full	Insecticide resistance in Colombia and Ecuador
title_fullStr	Insecticide resistance in Colombia and Ecuador
title_full_unstemmed	Insecticide resistance in Colombia and Ecuador
title_sort	insecticide resistance in colombia and ecuador
publisher	Centro Internacional de Agricultura Tropical - CIAT
publishDate	2005
url	http://hdl.handle.net/20.500.12324/18636
work_keys_str_mv	AT lopezavilaaristobulo insecticideresistanceincolombiaandecuador AT cardonacesar insecticideresistanceincolombiaandecuador AT isaurarodriguez insecticideresistanceincolombiaandecuador AT rendonfrancisco insecticideresistanceincolombiaandecuador
_version_	1808107335826014208

Insecticide resistance in Colombia and Ecuador

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