About
Us
Fruit flies are one of the main pests affecting fruit crops worldwide. To prevent or minimize losses caused by these insect pests, phytosanitary programs have been implemented in various parts of the world.
The Western Hemisphere Fruit Fly Working Group originated in the 1980s when an initiative arose to bring together researchers and managers of Mediterranean fruit fly control programs in Guatemala, Mexico, and the United States. The goal was to analyze and discuss priority research needs in order to more effectively address the challenges these programs faced. Subsequently, a similar group was formed to address the research needs of fruit fly control programs targeting Anastrepha species in the Americas. In 1990, following an agreement to merge these two groups, the Western Hemisphere Fruit Fly Working Group was established (see table).
Over the past three decades, there has been a significant increase in the number of fruit fly control programs implemented in the Americas. Our Working Group has experienced similar growth. Since its formation, it has held seven meetings.
1st
– Oct.1992 – San José, Costa
Rica
2nd
– Aug. 1996 – Viña del Mar,
Chile
3rd – Jul. 1999 – Guatemala City, Guatemala
4th – May. 2001 – Mendoza, Argentina
5th
– May. 2004 – Fort Lauderdale, USA
6th
– Sep. 2006 – Salvador,
Brazil
7th
– Nov. 2008 – Mazatlán,
Mexico
8th - July30-August 3rd 2012- Panama City, Panama
Under the networking framework, our objectives are:
Promote the exchange of information, knowledge, ideas and experiences that allow feedback and innovation in research, development of methods and in operational control programs.
Facilitate communication and promote collaboration between scientists, operational program managers and producers.
To serve as a platform for collaboration between countries and international organizations.
To contribute to the sustainable solution of the problems posed by fruit flies in the Americas.
(Last updated: September 22, 2026)
HISTORY OF THE WESTERN HEMISPHERE FRUIT FLY WORKING GROUP
(YEARS)
|
MEETINGS |
VENUE, NAME OF LOCAL ORGANIZER (number of participants and countries) |
80's |
Medfly Working Group |
Tapachula, Chis., Mexico; Honolulu, HI, and San Jose, CA, USA. G. Rowher, D. Lindquist. |
Sept. 22-25 1987 |
1st
Anastrepha Working
Group |
Metapa, Chis., Mexico. G. Rowher, J. Gutierrez-Samperio. |
1989 |
2nd
Anastrepha WG + Medfly WG |
Sao Roque, S. Paulo, Brazil. D. Lindquist, D. Chambers, A. Malavasi, J. Morgante. |
1990 |
Medfly WG +
3rd Anastrepha WG |
Antigua, Guatemala, in conjunction with ISFF. C. Calkins, D. Lindquist, D. Chambers.
Proposal of WGFFWH |
1992 |
1st WGFFWH |
San Jose, Costa Rica. A. Malavasi, N. Leppla, H. Camacho. |
1994 |
WGFFWH (not numbered) |
Clearwater, Florida, USA in conjunction with ISFF. Pat Greany |
1996 |
2nd WGFFWH |
Viña de Mar, Chile. D. Frías, A. Malavasi & R. Sugayama. |
July 4-9, 1999 |
3rd WGFFWH |
Guatemala City, Guatemala. Pedro Rendón, 162 participants, 21 countries. |
Nov. 25–30, 2002 |
4th WGFFWH |
Mendoza, Argentina. O. De Longo, P. Riera, 162 participants, 21 countries. |
May 16–23, 2004 |
5th WGFFWH |
Fort Lauderdale, FL, USA. R. Heath, N. Epsky, 226 participants, 33 countries. |
Sept. 10-15, 2006 |
6th WGFFWH |
Salvador, Bahia, Brazil in conjunction with ISFF. A. Malavasi 387 participants, 55 countries. |
Nov. 2-7, 2008 |
7th WGFFWH |
Mazatlán, Mexico. P. Montoya & P. Rendón, 243 participants, 20 countries. |
|
July 30 - August 3, 2012 |
8th TWWH |
Panama
City, Panama.
Emmeris Quintero. 208 participants,
29 countries
|
October 16-22, 2016
|
9th TWWH
|
Buenos Aires, Argentina |
November 2-6, 2020
| 10th TWWH
| Bogota, Colombia (Rescheduled from March because of Covid-June9)
|
June 3-7, 2024
| 11th TWWH
| Montego Bay, Jamaica
|