4thInternational Weed Science Seminar
Primer Taller Latinoamericano de Malezas
Pelotas, RS, Brazil, October 7 to 9th 2019

Auditório da Faculdade de Agronomia Eliseu Maciel
Universidade Federal de Pelotas – Campus do Capão do Leão

Pelotas – RS – Brazil



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History: The Weed Science Seminar is a biannual event promoted by the Crop Protection Graduate Program and organized by the Weed Science Research Group from the Federal University of Pelotas in partnership with several institutions in Southern Brazil (List can be checked in the end of this page).  This year the event is a promoted not only by the Crop Protection Graduate Program but is an effort of the graduate programs from UEM, UFRGS, UNESP and UFAM.  This partnership is an effort to integrate the institution on research, extension and education activities.

In the first two days of the event is the Seminar and in the last day we will have the “Primer Taller Latinoamericano de Malezas” which will be a workshop aiming at congregate researchers from key Latin American countries to discuss The Challenges and Opportunities for Weed Managements in their countries to find opportunities to solve local and regional weed problems. At the end of the workshop we will make a joint effort to build collaborative projects.

The events are sponsored by Corteva, BASF, CAPES and FAPERGS.

In this event we will discuss the challenge to train the next generation of weed scientist, the new technologies in weed management, the auxin herbicides and herbicide toxicology and legislation.

The community is welcome to participate in both events.


Final Program

4th International Weed Science Seminar


Monday October the 07th

8:30-9:15 Open Ceremony
Panel: Training the next generation of weed scientists
Chair: Carlos Eduardo Schaedler – IFSUL
9:15-10:00 Training the next generation of weed scientists: A Global Perspective
Franck DayanColorado State University, USA
10:00-10:30 Training the next generation of weed scientists: Training for Innovation
Edivaldo VeliniUNESP, Brazil
10:30-11:00 Training the next generation of weed scientists: The Industry Perspective
Angela Da Cas BundtCorteva Agriscience
11:00-11:30 Training the next generation of weed scientists: Training for entrepreneurship
Alexandre M. ChequimCEO e Co-founder da DigiFarmz
11:30-12:00 Questions and Answers
12:30-14:00 Lunch Break
Panel: New Technologies for weed management
Chair: Anderson Luis Nunes
14:00-14:45 Nanoencapsulation of herbicides
André Fajardo – UFPel
14:45-15:30 Development and application of RNAi system for weed control
Dana MacGregorRothamstead, England
15:30-16:00 Coffee Break
16:00-16:45 Gene Editing as a tool to create weed resistant crops
Alexandre NepomucenoEmbrapa Soja – Brazil
16:45-17:15 Questions and Answers
19:00 Dinner: Aki na Praia

Tuesday October the 08th

Panel: Auxin herbicide
Chair: Marcelo Zimmer – Purdue University
8:30-9:15 Auxin Herbicide Mode of Action
Catarine Markus UFRGS, Brazil
9:15-10:00 Weed resistance to auxin herbicides
Aldo Merotto Jr.UFRGS, Brazil
10:00-11:00 Auxin herbicide use and challenges in US
Bryan Young – Purdue University, US
11:00-11:45 Perspective of auxin herbicides use in Brazil
Mario BianchiCCGL Tec, Brazil
11:45-12:00 Questions and Answers
12:00-14:00 Lunch Break
Panel: Herbicide ecotoxicology and regulation
Chair: Edinalvo CamargoUFPel
14:00-14:45 Pesticides: Safety and Risks
Caio Carbonari – UNESP, Brazil
14:45-15:30 Overview on pesticide ecotoxicology
Gladys Stephenson – University of Guelph, Canada
15:30-16:00 Coffee Break
16:00-16:45 Glyphosate toxicology and ecological risks
Keith Solomon – University of Guelph, Canada
16:45-17:15 Determination of pesticide residues: State of the art
Renato Zanella LARP – UFSM
17:15-17:45 Questions and Answers
19:00 Dinner: Galeteria Lobão

Primer Taller Latinoamericano de Malezas

“Challenges and opportunities for weed management in LATAM”

Wednesday October the 09th

8:20-8:40 The UFPel vision on Latin America Integration on Research
Max Cenci – Director International Relations UFPel
8:40-9:00 Abertura: Introdução e objetivos a serem alcançados pelo workshop
Luis Avila – Coordenador
9:00-9:30 Manejo de plantas daninhas em terras altas no Brasil: desafios e oportunidades
Dirceu Agostinetto e Leandro Vargas – UFPel – Brazil
9:30-10:00 Manejo de plantas daninhas em terras baixas no Brasil: desafios e oportunidades
André Andres – Embrapa Clima Temperado
10:00-10:30 Manejo de plantas daninhas em arroz pré-germinado no Brasil: desafios e oportunidades
José Alberto Noldin – Epagri – SC
10:30-11:00 Manejo de Plantas Daninhas em Pastagens – Desafios e oportunidades
Fabiane Pinto Lamego – Embrapa
11:00-12:00 Manejo de plantas daninhas na Colômbia: desafios e oportunidades
Baldomero Puentes – Fedearroz – Colômbia
12:00-14:00 Almoço
14:00-14:30 Manejo de plantas daninhas no Uruguai: desafios e oportunidades
Dr. Alejandro Garcia – INIA – Uruguai
14:30-15:00 Manejo de plantas daninhas na Argentina: desafios e oportunidades
Horacio Acciaresi – INTA – Argentina
15:00 – 15:30 Weed management on Central America and the Andian Countries: Challenges and Oportunity
Dr. Ian Zelaya – Private Consultant – Honduras
15:30-15:30 Discussão em Grupo
15:30-16:30 Fechamento e compilação dos resultados



Federal and State Sponsors




PPG em Fitossanidade – UFPel
PPG Fitotecnia – UFRGS
PPGP – UNESP Botucatu

UFSM- Campus Frederico Westphalen
PPG em Fisiologia Vegetal da UFPel
PPG Agronomia – UTFPR