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​​About us

Acerca de nosotros

Fruit flies are a major pest of fruit crops worldwide. To avoid or minimize the losses caused by these insect pests, phytosanitary programs have been implemented in various parts of the world.

The Working Group on Fruit Flies of the Western Hemisphere has its origins in the 1980s when it was proposed to bring together researchers and technical staff in charge of the programs against the Mediterranean fruit fly in Guatemala, Mexico and the United States. The aim was to analyze and discuss research needs and priorities in order to confront more effectively the problems facing these programs.  Later, a  similar group was formed to meet the research needs of programs against fruit flies of the genus Anastrepha on the American continent. In 1990, following the agreement to unite these two groups, the working group on Fruit Flies of the Western Hemisphere was established (History of the Working Group).

Under the scheme of networking, our goals are:

  • To promote the exchange of information, knowledge, ideas and experiences that allows feedback and innovation in research, methods development and action programs.
  • To facilitate communication and encourage collaboration among scientists, operational program officers and the industry.
  • To serve as a platform for collaboration among countries and international agencies.
  • To contribute to the sustainable solution of fruit fly problems in the Americas.

In the past three decades, there has been a significant increase in the number of programs implemented against fruit flies in the Western Hemisphere. Our Working Group has experienced similar growth with regular meetings taking place every four years:

1st – October 1992 – San José, Costa Rica

2nd – August 1996 – Viña del Mar, Chile

3rd – July 1999 – Guatemala City, Guatemala

4th – May 2001 – Mendoza, Argentina

5th – May 2004 – Fort Lauderdale, USA

6th – September 2006 – Salvador, Brazil

7th – November 2008 – Mazatlán, México

8th – July – August 2012, Panama City, Panama (208 delegates, 29 countries)

9th – 16-22 October 2016, Buenos Aires, Argentina

10th - 2-6 November 2020, Bogota, Colombia (Rescheduled because of Covid-19) 

11th - 3-7 June 2024, Montego Bay, Jamaica                      

TWWH | Ministry of Agriculture, Fisheries and Mining (

logo 11th twwh jamaica JUNE-3-7-2024.jpg

Book of Abstracts



TWWH Steering Committee (2020-2024):



Click here for more information on how to become a TWWH member
. In addition, send a notification to the TWWH chair, Teresa Vera <>, <>, or to Contact us


2024Montego Bay city, Jamaica
The Jamaican Ministry of Agriculture, Fisheries and Mining and the Tephritids Workers of Western Hemisphere (TWWH) are pleased to announce the 11th Meeting that will be hosted by Jamaica in the City of Montego Bay from June 3-7, 2024.
>>First announcement
>>Second announcement
>>Third announcement
>>Fourth announcement
>>Fifth announcement
>>Sixth announcement
>>Book of abstracts
2020 Bogota, Colombia
10TWWH2020-​Bogota-Colombia-7th Announcement
Date 31/08/2020
Dear Congress participants,
It is a great pleasure to contact you again to restart the activities related to our Congress, which was postponed due to the global health emergency generated by Covid-19.The Local Organizing Committee wishes to communicate the following:
After discussions with the Steering Committee, it was decided to hold the Congress virtually on 2nd – 6th November, 2020.
The main rational for this decision was the advanced organization that the steering committee and local organizing committee put into the originally planned meeting in Bogota. Read more
The local Organizing Committee
The congress
2016Buenos Aires, Argentina
The 9th TWWH meeting was held in BUENOS AIRES, AREGENTINA, on 16-22 OCTOBER 2016. First Announcement. Second announcement (En); Third announcement; Website
We invite you to visit the meeting website where you will find the The book of abstracts and the metting Conclusions and recommendations
2012Panama City, Panama
Panama meeting posters, presentations, photos and technical activities are attached. Related information: Video of the Technical Tour: visit of Anastrepha grandis eradication zone
2008Mazatlán, México
2006Salvador, Brazil
6th TWWH meeting held in conjunction with 7th ISFFEI in Brazil.
See 7th ISFFEI Proceedings
2004Fort Lauderdale, USA
2001Mendoza, Argentina
1999Guatemala City, Guatemala
1996Viña del Mar, Chile
1992San José, Costa Rica