COMMON FUND FOR COMMODITIES

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1 COMMON FUND FOR COMMODITIES Technical Paper n 16 Integrated Pest Management of the Cotton Boll Weevil in Argentina, Brazil and Paraguay CFC/ICAC/04 Secretaría de Agricultura, Ganadería, Pesca y Alimentación International Cotton Advisory Committee Servicio Nacional de Sanidad y Calidad Agroalimentaria

2 This report has been produced by the project. The Common Fund for Commodities does not necessarily share the views expressed herein. Common Fund for Commodities, October 2001, The contents of this report may not be reproduced, stored in a data retrieval system or transmitted in any form or by any means without the prior written permission of the Common Fund for Commodities, except that reasonable extracts may be made for the purpose of comment, review or non-commercial use, provided the Common Fund for Commodities is acknowledged. ISBN: Author: Teodoro Stadler Institutional Author: Common Fund for Commodities Publishing Agency: SENASA

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7 TECHNICAL REPORT Project Title: Integrated Pest Management of the Cotton Boll Weevil in Argentina, Brazil and Paraguay (CFC/ICAC/04) Main participating institutions: SENASA (ex IASCAV) : Servicio Nacional de Sanidad y Calidad Agroalimentaria, Paseo Colón 367 (1063) Bs. As. Tel Fax , ARGENTINA INTA, IMYZA-Castelar: Instituto Nacional de Tecnología Agropecuaria - Instituto de Microbiología y Zoología Agrícola, cc 25 (1712) Castelar, prov. Bs. Aires. Tel , rlecuona@cnia.inta.gov.ar, ARGENTINA INTA EEA-Saenz Peña: Instituto Nacional de Tecnología Agropecuaria, EEA-Saenz Peña C.c. 164 (3700) Chaco Tel Int. 109, ARGENTINA CONICET UNLP- FCN: Consejo Nacional de Investigaciones Científicas y Técnicas, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Paseo del Bosque s/n (1900) La Plata, Tel/Fax: , alanteri@museo.fcnym.unlp.edu.ar, ARGENTINA FCEyN - UBA : Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Dto. De Ciencias Biológicas, UBA, Pab. II Ciudad Universitaria (1428) Buenos Aires, bibilu@bg.uba.ar, ARGENTINA LPE CONICET-UNComa: Laboratorio de Parasitología y Ecotoxicología - Consejo Nacional de Investigaciones Científicas y Técnicas. Fac. Ingeniería Universidad Nac. Comahue, Buenos Aires 1400 (Q8300BCX) Neuquen, lpe@uncoma.edu.ar - ARGENTINA UNNE: Universidad Nacional del Nordeste, C.c. 128 (3400) Corrientes Tel/Fax , E- mail ARGENTINA IBONE: Instituto de Botánica del Nordeste, Sargento Cbral Casilla de Correo 209 (3400) Corrientes, ibone@espacio.com.ar, ARGENTINA UNC-CREAN: Universidad Nacional de Córdoba, Av. Valparaíso s/n Ciudad Universitaria (5000) Córdoba Tel /17, Fax , ravelo@agro.uncor.edu, ARGENTINA EMBRAPA-CNPA : Empresa Brasileira de Pesquisa Agropecuaria, Centro Nacional de Pesquisa de Algodão, Rua Osvaldo Cruz 1143 Campina Grande - PB Caixa Postal 174 CtP Tel , framalho@cnpa.embrapa.br, BRASIL EMBRAPA-CENARGEN : Empresa Brasileira de Pesquisa Agropecuaria, Centro Nacional de Pesquisa de Recursos Genéticos e Biotecnología, SAIN Parque Rural- CEP Brasilia DF. Tel o , rose@cenargen.embrapa.br, BRASIL IAPAR : Instituto Agronómico Parana, Rod. Celso García Cid Km 375 Caixa Postal 481 CtP Londrina - PR Tel Int Fax , waljor@pr.gov.br, BRASIL INSTITUTO BIOLÓGICO : Estacão Exp. de Campinas Caixa Postal 70 Campinas SP Fax BRASIL MAG : Ministerio de Agricultura y Ganadería-Dirección de Investigación Agrícola Pte. Franco y Ayolas-Ed. AyFRA Piso 2 Tel PARAGUAY DIA : Dirección de Investigación Agrícola Asunción Tel/Fax Int. 227 PARAGUAY IAN : CAACUPE Ruta 2-Km Tel/Fax Caacupé, dia@quanta.com.py PARAGUAY

8 ACRONYMS AND ABBREVIATIONS CENARGEN Centro Nacional de Recursos Genéticos CC/CFC Consultative Committee of the Common Fund for Commodities CFC Common Fund for Commodities CONICET Consejo Nacional de Investigaciones Científicas y Tecnológicas CNPA Centro Nacional de Pesquisas do Algodao, Brazil DIA Dirección de Investigaciones Agrícolas EEA-INTA, Sáenz Peña Estación Experimental Agrícola EMBRAPA Empresa Brasileira de Pesquisa Agropecuaria FCEN/UBA Facultad de Ciencias Exactas y Naturales IAN Instituto Agrario Nacional IAPAR Instituto Agronómico de Paraná IBONE Instituto Botánico del Nordeste Argentino ICAC International Cotton Advisory Committee IMYZA-Castelar/INTA Instituto de Microbiologia y Zoologia Àplicada INTA Instituto Nacional de Tecnología Agropecuaria IPM Integrated Pest Management LPE Laboratorio de Parasitología y Ecotoxicología MACN Museo Argentino de Ciencias Naturales MAGIP Ministerio de Agricultura, Ganadería y Pesca, Corrientes, ARG MAG Ministerio de Agricultura y Ganadería PEA Project Execution Agency SENASA Servicio Nacional de Sanidad y Calidad Agroalimentaria TMB Tubo Matapicudos UBA Universidad Nacional de Buenos Aires ULP Universidad Nacional de La Plata UNC Universidad Nacional de Córdoba UNComa Universidad Nacional del Comahue UNNE Universidad Nacional del Nordeste iv

9 CONTENTS English Version (Versión en Inglés) Introduction 3 Executive Summary 5 Project activities, participating institutions and scientists 7 Administrative contact persons 11 ACTIVITY: Alternative hosts and feeding behavior of the cotton boll weevil 13 ACTIVITY: Phenology and dynamics of boll weevil adult dispersion 15 ACTIVITY: Use of insecticides Insecticide resistance monitoring 19 Sub-activity: Use of insecticides 19 Sub activity: Insecticide resistance monitoring 20 Sub-activity: Effects of hard water on the efficiency of two formulations of the pyrethroid insecticide β-cypermethrine Sub-activity: Insect cuticle softening effect of mineral and vegetable oils on the cotton boll weevil ACTIVITY: Biological Control 28 Sub-activity: Parasitoids and predators 28 Sub-activity: Entomopathogen fungi 30 ACTIVITY: Assessment of trap/kill devices for A. grandis 33 ACTIVITY: Geographical Information System (GIS) 34 ACTIVITY: Validation of life cycle and population characteristics of A grandis 41 Sub-activity: Molecular Studies on Argentine populations of Anthonomus grandis 41 Sub-activity: Mass rearing of the cotton boll weevil 44 ACTIVITY: Transfer of technology and information to farmers and extensionists 45 PROJECT PUBLICATIONS LIST 49 Spanish Version (Versión en español) 57 Consideraciones generales y objetivos del proyecto 59 Actividades del Proyecto, instituciones e investigadores participantes 7 Contactos 11 ACTIVIDAD: Hospederas alternativas y comportamiento alimentario del picudo del algodonero ACTIVIDAD: Fenología y dinámica de la dispersión de adultos de A. grandis 65 ACTIVIDAD: Uso de insecticidas Monitoreo de resistencia a insecticidas 69 Sub-actividad: Uso de insecticidas 69 Sub actividad: Monitoreo de resistencia a insecticidas 70 Sub actividad: Efectos del agua dura sobre la eficacia de dos formulaciones del insecticida piretroide β-cipermetrina. 74 Sub actividad: Toxicidad y ablandamiento de la cutícula causado por aceites minerales y vegetales sobre la cutícula de Anthonomus grandis. 76 ACTIVIDAD: Control Biológico 79 Sub-actividad: Parasitoides y predadores 79 Sub-actividad: Hongos Entomopatógenos 82 ACTIVIDAD: Evaluación de dispositivos de trampeo y captura para A. grandis 85 ACTIVIDAD: Sistema de Información Geográfica (SIG) 87 ACTIVIDAD: Validación del ciclo de vida y características poblacionales en A. grandis 94 Sub-actividad: Estudios moleculares sobre poblaciones argentinas de Anthonomus grandis 94 Sub-actividad: Cría en laboratorio del picudo del algodonero 97 ACTIVIDAD: Transferencia de información y tecnología a extensionistas y agricultores- Actividades de extensión 98 LISTA DE PUBLICACIONES CIENTIFICAS 49 Page

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15 Project CFC/ICAC/04 Technical Report Project activities, participating institutions and scientists! 3!! '!!!!!!!!.'!! K' 6$9$ J$ # / 5 $ L!! '&(.!!!.'!%!'!!%!!!#JI$($$- P$ % : - 9 5, 9 ( 6! 5!!LQ!!%.'!!6 R$##R$$# $% ((!!1QK!! % %.'!')$#(J$$L/, LDLKK$%N(#(O!!!!! )3 F -CL, % N!O 5! '! /K!!!%!!!!! (. -! ARGENTINA # Ecology & Biology of Boll Weevil in Cotton Agroecosystems of Proposing Countries Act. Description Institution Participants Pesticide Resistance Monitoring- Use of Insecticides 1 Development of a Protocol for Pesticide Resistance Monitoring Coord.: Maria Inés Zerba Adult Weevil Feeding & Foraging Behaviour 2 Adult Weevil Feeding Behavior and Taxonomic Studies on Malvaceae Coord.: G. Cuadrado and A. Krapovickas Biological Control 3 Microbial Control of the Boll Weevil Coord.: Roberto Lecuona 4 Phenology & Dynamics of Adult Dispersion 5 Host Plant Resistance CONICET MACN UNNE INTA Castelar Dolores Martínez Ginés Teodoro Stadler Graciela Cuadrado Krapovickas Marcelo Caldeo Alicia Cristina Gonzáles, Myriam Tigano y auxiliares (CENARGEN-EMBRAPA) No activities* No activities* 7

16 Project CFC/ICAC/04 Technical Report ARGENTINA $ Adapting Acquired & Developed Technology to Local Production Regions/Systems Act. Description Institution Participants Validating Life History and Development Data- Molecular Studies of Local Populations of A. Grandis Coord.: Analia Lanteri Development of Computer Aided Decision System for Boll Weevil Population Management Developing and Installing a GIS Database Coord.: Andrés Ravelo Field Assessment of Trap & Trap/Kill Devices CONICET-UNLP CONICET-CREAN- UNC % Viviana Confalonieri, Sonia Suárez Amalia Scataglini No activities* Ernesto Abril No activities* Transfer Technology & Information to Farmers & Extensionists Act. Description Institution Participants 1 Improvement of Knowledge and Awareness about Boll Weevil in Proposing Countries Technology Transfer to Farmers and Extensionists: Low Cost Technology with Social and Environmental Acceptability Coord.:Graciela Arias de Lavalle M. Amarilla (2)Θ, H. Arce (3)Θ, R. Balbuena (4)Θ, J. Bosh (5)Θ, N. Brignole (6), C. Demicheli (7)Θ,H. Gauna (8)Θ, A. Gomez(9)Θ, R. Gunther (10) Θ E. Insaurralde (11), J. Llorente (12)Θ, R. Pepi (13), J. L. Rodriguez(14), H. Roig (15), V. Silva (16) φ, A. Simonella (17), C. Simons (18) µ. INTA (Instituto Nacional de Tecnología Agropecuaria) Θ SAP (Servicio de Atención al Productor), MAGIP de Corrientes. φ Cooperativa Agropecuaria de Industria y Consumo de Las Breñas. µ Cooperativa Agrícola Charata Ltda. BRAZIL # Ecology & Biology of Boll Weevil in Cotton Agroecosystems of Proposing Countries Act. Description Institution Participants 1 Pesticide Resistance Monitoring- Use of Insecticides Field Evaluation of Insecticides for the Control of the Boll Weevil Coord.: Walter Jorge dos Santos 2 Adult Weevil Feeding & Foraging Behaviour Biology of A.grandis in Alternative Hosts Coord.: Dalva Gabriel 3 Biological Control Biological Control by Parasitoids and Predators Coord.:Francisco de Sousa Ramalho IAPAR Instituto Biologico EMBRAPA/ CNPA Roberto J. da Silva E. Vaz Bonatti W. Santos de Oliveira Adalton Raga Camila Lega Duarte Calindra Lima da Costa Ramos Rómulo de Sátiro Medeiros Walkymário de Paulo Lemos 8

17 Project CFC/ICAC/04 Technical Report BRAZIL # Act. Description Institution Participants 3 Mass Rearing of A. grandis on Artificial Diet, Study of it s Biology in Laboratory Conditions and Identification of Control Agents. Coord..: Rose Gomes Monnerat S. Pontes 4 Phenology & Dynamics of Adult Dispersion Study of Occurrence & Distribution of A. grandis in cotton areas Coord.: Walter Jorge dos Santos 5 Host Plant Resistance EMBRAPA/ CENARGEN IAPAR Maria Fátima Grossi de Sá Miryan Silvana Tigano Joseilde Oliveira Silva Werneck Osmundo Brilhante Simoni Campos Dias Silvania Ferreira Daniel Gehain Lilian Botelho Praça Roberto Joaquim da Silva W. Santos de Oliveira Maria Selia da Costa No activities* $ Adapting Acquired & Developed Technology to Local Production Regions/Systems Act. Description Institution Participants 1 Validating Life History and Development Data 2 Development of Computer Aided Decision System for Boll Weevil Population Management 3 Developing and Instaling a GIS Database 4 Field Assessment of Trap & Trap/Kill Devices Field Assessment of Traps and Boll Weevil Killer Tubes Coord.: Walter Jorge dos Santos IAPAR % No activities* No activities* No activities* Transfer Technology & Information to Farmers & Extensionists Roberto Joaquim da Silva Euclides Vaz Bonatti Maria Selia da Costa Act. Description Institution Participants 1 Improvement of Knowledge and Awareness about Boll Weevil in Proposing Countries Technology Transfer Coord.: Walter Jorge dos Santos Spreading and Transferring of Technology and Information to Farmers and Extensionists/ Technicians Coord.: José Méndes de Araújo IAPAR EMBRAPA- CNPA Roberto Joaquim da Silva, Euclides Vaz Bonatti, Maria Selia da Costa José Mário Cavalcanti de Oliveira, Isaias Alves, Dalfran Gonçalves Vale, Waltemilton Vieira Cartaxo, Marenilson Batista da Silva 9

18 Project CFC/ICAC/04 Technical Report PARAGUAY # Ecology & Biology of Boll Weevil in Cotton Agroecosystems of Proposing Countries Act. Description Institution Participants 1 Pesticide Resistance Monitoring-Use of Insecticides Comparative Trials of insecticides for boll weevil control Coord.: Victor Gómez IAN Caacupe Domingo Pessolani Juan Sosa 2 Adult Weevil Feeding & Foraging Behavior Study of the interaction Stubble-Pests Coord.: Victor Gómez 3 4 Biological Control Pathogenic Fungi Collection for bioassays with A. Grandis Coord.: Rafael Delgado Phenology & Dynamics of Adult Dispersion Study of the Cotton Boll Weevil Population Dynamics and dispersion Coord.: Victor Gómez IAN Caacupe IAN Caacupe IAN Caacupe Avelino Vera, Justo Cáceres Avelino Vera, Justo Cáceres Jorge Medina, Mario Sanabria, Juan Sosa, Elvira de Gómez, Oscar Benitez, Vicente Soria, Justo Cáceres, Federico Cáceres, Oscar Aguilera 5 Host Plant Resistance No activities* $ Adapting Acquired & Developed Technology to Local Production Regions/Systems Act. Description Institution Participants 1 Validating Life History and Development Data 2 Development of Computer Aided Decision System for Boll Weevil Population Management 3 To Develop and Install a GIS Database 4 Field Assessment of Trap & Trap/Kill Devices Coord.: Victor Gómez IAN Caacupe No activities* No activities* No activities* Avelino VeraA. Cáceres % Transfer Technology & Information to Farmers & Extensionists Act. Description Institution Participants 1 Improvement of Knowledge and Awareness about Boll Weevil in Proposing Countries Technology Transfer Coord.: Victor Gómez 2 Assessment of Adoption and Utilization of the technology. IAN Caacupe Ubaldo Britos Rafael Delgado Carmen Patiño. Técnicos D.E.A.G., DIA y DDV No activities* (*)NOTE: No activities indicates that the country decided to skip the activities because they were not consistent with their local research needs or skills. 10

19 Project CFC/ICAC/04 Technical Report Administrative contact persons Name Role Address Sietse Van der Werff Project Manager Common Fund for Commodities Stadhouderskade 55, 1072 AB Amsterdam The Netherlands Tel: Fax: Rafiq M. Chaudhry Carlos Valderrama Teodoro Stadler Ney Dias Dos Santos Víctor Gómez Supervisory Body Project Executing Agency Coordinator Brazil Coordinator Paraguay International Cotton Advisory Committee 1629 K Street, NW Suite 702 Washington DC, 20006, USA Tel: Fax: rafiq@icac.org Laboratory of Parasitology and Ecotoxicology Facultad de Ingeniería, UNComa Buenos Aires 1400 Q8300BCX-Neuquen, Argentina Tel (54-299) int lpe@uncoma.edu.ar Explanada dos Ministerio- Bloco D Anexo A sala 349 Brasilia, Brazil. ney@agricultura.gov.br IAN Ruta 2-Km Caacupé, PARAGUAY Tel/Fax dia@quanta.com.py Eduardo Cosenzo Coordinator Argentina SENASA. Servicio Nacional de Sanidad y Calidad Agroalimentaria. Arturo Illia 549, 1 P. Buenos Aires, Argentina. iicasenasa@impsat1.com.ar 11

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30 Project CFC/ICAC/04 Technical Report. Modified trap to collect adult boll weevils. 3. Heater and device for impregnating vials with insecticide. The heater keeps temperature at 30 ºC and a constant air flow. ADOPTION of a control strategy (chemical, cultural) 2 1. Detail of the device to impregnate vials. rollers (1) and one of the two levels (3) to ensure that the rollers are horizontal and that the vials are coated with an even layer insecticide (2).. Insecticide Resistance Diagnosis Kit. Instructions are detailed on the labels of the box.. 22

31 Project CFC/ICAC/04 Technical Report '!04' 2β024 * T?! : * : #(?? ' Detection of boll weevil infestation focus Capturing boll weevils using modified traps RESISTANCE DIAGNOSIS KIT + Selection of alternative insecticide 1N DECISION _- *! Fig h 24 h Selection of programmed insecticide 23

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55 Project CFC/ICAC/04 Technical Report 7 > N??4==8 RURAL COMMUNITY Crop Productivity kg/ha Sale price R$/kg Gross income R$ Cost / Production R$ Líquidity R$ Cost/kg R$ Relation B/C* Caiçara PB CNPA 7H ,60 630,00 524,00 106,00 0,50 0,20 Caiçara PB CNPA 7H 800 0,63 504,00 442,50 61,50 0,55 0,14 Caiçara PB CNPA PR ,65 390,00 327,50 62,50 0,55 0,19 Paulista PB CNPA 7H , ,00 440, ,00 0,20 2,58 Ibiara PB CNPA 7H ,53 768,50 611,00 157,50 0,42 0,26 Santana de CNPA Mangueira PB 7H ,52 975,00 563,00 412,00 0,30 0,73 Itaporanga PB CNPA 7H , ,00 478,00 642,00 0,24 1,34 Diamante PB CNPA 7H ,60 960,00 575,00 385,00 0,36 0,67 Cachoeira dos Índios CNPA PB 7H ,60 960,00 555,00 405,00 0,35 0,73 Carnaíba - PE CNPA 7H ,70 980,00 457,00 523,00 0,33 1,14 Carnaíba - PE CNPA 7H 600 0,70 420,00 299,00 121,00 0,50 0,40 Carnaíba - PE CNPA 7H 500 0,70 350,00 195,00 155,00 0,39 0,79 Carnaíba - PE CNPA PR ,70 350,00 263,00 87,00 0,53 0,33 MÉDIA ,63 767,88 440,77 327,12 0,40 0,73 *Benefít / Cost 2\ > N? \4==8 RURAL COMMUNITY LABOUR R$ SERVICES MACHINERY R$ 47 SEEDS R$ INPUTS DEFENSIVES R$ T O T A L R$ Caiçara PB 360,00 30,00 14,00 120,00 524,00 Caiçara PB 328,00 45,00 17,50 52,00 442,50 Caiçara PB 241,00 45,00 17,50 24,00 327,50 Mogeiro PB 320,00 40,00 20,00 60,00 440,00 Ibiara PB 464,00 50,00 25,00 72,00 611,00 S. de Mangueira-PB 460,00 30,00 25,00 48,00 563,00 Itaporanga PB 360,00 45,00 25,00 48,00 478,00 Diamante PB 448,00 30,00 25,00 72,00 575,00 C. dos Índios - PB 358,00 100,00 25,00 72,00 555,00 Carnaíba PE 360,00 0,00 25,00 72,00 457,00 Carnaíba PE 200,00 32,00 25,00 42,00 299,00 Carnaíba PE 170,00 0,00 25,00 0,00 195,00 Carnaíba PE 220,00 0,00 25,00 18,00 263,00 M E D I A 329,92 34,38 22,62 53,85 440,77 PERCENTAGE 74,9 7,8 5,1 12,2 100,0 *%(%1?&' #

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57 Project CFC/ICAC/04 Technical Report B'! Abril, E., Programa de capacitación en Sistemas de Información Geográfica (SIG) para el Manejo Integrado del picudo del algodonero. Workshop Proceedings III International Workshop on: Integrated Pest Management of the Cotton Boll Weevil in Argentina, Brazil and Paraguay. Riberão Preto, Brazil-September 5-7, pp Arias de Lavalle, M. G., Transferencia a los agricultores y expertos en extensión Agrícola de tecnología e información de bajos costos, socialmente aceptable y ambientalmente sana. Workshop Proceedings III International Workshop on: Integrated Pest Management of the Cotton Boll Weevil in Argentina, Brazil and Paraguay. Riberão Preto, Brazil-September 5-7, pp Arias de Lavalle, M. G., Transferencia a los agricultores y expertos en extensión Agrícola de tecnología e información de bajos costos, socialmente aceptable y ambientalmente sana. Progress Report: Integrated Pest Management of the Cotton Boll Weevil in Argentina, Brazil and Paraguay (CFC-ICAC/04). Reporting Period: July, 2000 to December, pp Arias de Lavalle, M. G., Alberto, E., Amarilla, M., Arce, H., Baluk, P., Balbuena, R., Bosh, J., Brignole, N., Cardozo, Z., Colonese, C., Contreras, G., Crimella, J., Demicheli, C., Farias, R., Gauna, H., Gomez Grandoli, A., Gunther, R., Insaurralde, E., Klein, H., Llorente, H., Monzon, L., Ortiz, R., Pajuelo, E., Pepi, R., Piersanti, M. C., Riester, V., Rodriguez, J. L., Roggero, L., Roig, H., Ronco, S., Silva, V., Simonella, A., Simonella, M. A., Simons, C., Sosa, M. A., Skupien, L., Polo, N., Tijera, J., Toledo, A., Tijera, J., Tuty, M & Zampa, Low cost technology and information transfer to farmers and extensionists aimed to minimize social cost and environmental risks Program and Summaries; Final International Workshop; Cotton in the Southern Cone, Integrated Pest Management of the Cotton Boll Weevil in Argentina, Brazil and Paraguay (CFC-ICAC/04); Fortaleza, Brazil-June, 26th-28th, pp. 61. Barrios, M. I., Moschione, F. N., Demaria, M. & Lanteri, A., Survey of reproductive host plant species of the Cotton Boll Weevil in Misiones, Argentina. Program and Summaries; Final International Workshop; Cotton in the Southern Cone, Integrated Pest Management of the Cotton Boll Weevil in Argentina, Brazil and Paraguay (CFC-ICAC/04); Fortaleza, Brazil-June, 26th-28th, pp. 28. Britos, U., Gómez, V. Delgado, R. & Villalba, M., Validación de tecnología a través de un día de campo en un cultivo de algodón. Workshop Proceedings III International Workshop on: Integrated Pest Management of the Cotton Boll Weevil in Argentina, Brazil and Paraguay. Riberão Preto, Brazil-September 5-7, pp Brodsky, H. A., Toledo, D. M. & Cosenzo, E.- Use of Scout traps for monitoring cotton boll weevil populations in Argentina. Program and Summaries; Final International Workshop; Cotton in the Southern Cone, Integrated Pest Management of the Cotton Boll Weevil in Argentina, Brazil and Paraguay (CFC-ICAC/04); Fortaleza, Brazil-June, 26th-28th, pp. 44. Buteler, M., Evaluación de la toxicidad de aceites de uso fitosanitario y su efecto sinérgico con ciflutrina para Dysdercus chaquensis (Insecta Heteroptera Pyrrhocoridae), plaga del algodonero Ms.Thesis in Compact Disk. Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Laboratorio de Parasitologia y Ecotoxicologia, Facultad de Ingenieria UNCOMA CONICET. (CFC ICAC/04). March, 2001 Cosenzo, E., Ramirez, C. & Steger, E.- Present Situation of the National Program for Prevention and Eradication of the Cotton Boll Weevil (PNPEPA) and its regional projection. Program and Summaries; Final International Workshop; Cotton in the Southern Cone, Integrated Pest Management of the Cotton Boll Weevil in Argentina, Brazil and Paraguay (CFC- ICAC/04);. Fortaleza, Brazil-June, 26th-28th, pp