The Colima outbreak, detected in April 2021 in the country’s largest port, Manzanillo, posed an immediate risk to crops such as carambolas, figs, guavas, mangoes, papaya, pink grapefruits, and oranges. If not managed promptly, Mexico, the world’s seventh-largest producer and exporter of fresh fruits and vegetables, could face quarantine restrictions imposed by countries free from this pest. This could affect the country’s trade in such goods, which generates over 189 billion Mexican pesos (EUR 8.8 billion) annually in exports, as well as millions of local jobs.
After receiving an emergency request for assistance in April 2021, the IAEA and FAO acted immediately, dispatching expert missions to help set up and evaluate the eradication actions. "This is one more example where SIT has been successfully used to prevent, suppress and eradicate invasive insect pests, contributing worldwide to food security and safety," said Walther Enkerlin Hoeflich, an FAO/IAEA entomologist, about the technique, which is a priority activity of the IAEA assistance for Member States, through the Joint FAO/IAEA Centre of Nuclear Techniques in Food and Agriculture.
Medfly females can damage crops by laying eggs in ripe fruits, impacting the quality of products, making them unsellable and nonedible. To control the outbreak, Mexico designed and implemented an emergency action plan with the assistance of FAO/IAEA experts, delivered through the IAEA technical cooperation programme. Based on this plan, Mexico released more than 1450 million sterile male flies in Colima using the environmentally-friendly SIT insect pest control method, which applies irradiation to sterilize insects. After being released, these males mate with wild females, producing no offspring, thereby leading to a declining pest population and eventually to its eradication.
Mexico has managed to maintain its status as a country free of the Mediterranean fly," said Francisco Ramírez y Ramírez, General Director of Plant Health of the National Service for Agrifood Health, Safety, and Quality (SENASICA) of Mexico at the event declaring the eradication of the pest in the State of Colima. "If the Mediterranean fly had settled in the country, the consequence would have been the closure of access to national and international markets for Mexican fruits and vegetables, which ultimately would have meant economic losses for local producers," he added.
The sterile male medflies were produced at a newly built facility in Mexico. The facility, with a design that benefited from IAEA expertise, was inaugurated in 2021. It is the second largest in the world, with a production capacity of 1 billion sterile medflies every week. The new facility, located in the state of Chiapas, focuses on mass production of sterile insects and, together with the El Pino facility in Guatemala, helps maintain the containment barrier that prevents the introduction and spread of the pest to northern Guatemala, Mexico, and the United States.
FAO and IAEA assisted Mexico in designing a new mass-rearing facility that can produce one billion sterile flies in a week. This facility is proving vital in containing the current outbreak in Colima and eradicating the pest. ©DGSV Senasica - Photo: fao.org
The IAEA will continue assisting and working together with Mexico through national and regional technical cooperation projects and through Mexico’s National Fruit Fly Programme (PNMF), an IAEA Collaborating Centre.
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WAJAt first glance, she doesn't stand out when standing next to her Asian girls, I become more and more in the middle European women. Yet, people like look at you, especially like to peek, every time you say, or every time she laughs. Asian-style face Dong, round black eyes that can talk, the corner of his mouth when also fresh. Long, silky black hair, clear voice, Standard and flexible pronunciation even when I speak the language German and Vietnamese.
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