Prevention and control of HLB in family citriculture

In order to scale up integrated pest management (IPM), with a focus on the Huanglongbing vector (HLB), demonstration lots are installed in family citrus farms in Argentina, Uruguay, Paraguay and Bolivia

Context of the story

Huanglongbing (HLB) is the most important disease in citrus farming worldwide. Prevention is based on use of healthy material, monitoring of culture and vector insect (Diaphorina citri) control and elimination of ill plants (rooting).
Citrus production is characterized by small family owned units, in which pests and diseases monitoring is not common. Control prevails through routine applications of non-selective agrochemicals that cause risks and damage to the environment, the beneficial entomofauna and general population. Since 2012, the disease has been registered in Argentina and in 2013 in Paraguay.

Scale up integrated pest management with focus on the HLB vector in family citrus farming

The implemented initiative

To adapt and disseminate IPM technology in HLB vector control in FA, through a collective innovation management approach based on demonstration lots, training and communication, enhance social awareness, sustainability and fruit quality monitoring, economic analysis among lots. Funded by FONTAGRO, INTA / Fundación ArgenINTA (Argentina), INIA (Uruguay), UNI / FundUNI (Paraguay), Municipal Autonomous Government of Bermejo (Bolivia) take active part in the project. SENASA and FEDERCITRUS (Argentina) and UPEFRUY (Uruguay) act as Associated Organizations in project implementation.

HLB citrus vector control in integrated pest management (IPM) context

The technological solution

Local adaptation of integrated pest management (IPM) technology in demonstration lots (LD) located in FA units- chosen in a participatory way with local actors - with focus on controlling the HLB (Diaphorina citri) vector, through monitoring practices, use of safe products that preserve the natural balance and use of natural enemies (Tamarixia radiata, crispidae). Monitoring allows activating an alert system hosted in a free access web portal, (smartphone friendly) developed for FA and other actors. Training: certified IPM monitors; producer families, professionals and operators. Social awareness enhancement through dissertation in communities. Robust Communication strategy. Impact monitoring of the implementation of the IPM in lots: sustainability (AMBITEC-AGRO), effects on fruit quality (MEF, others) and economic-financial analysis. Collective innovation management is promoted as an approach to IPM scale up.

Participatory method for the selection of 16 demonstration lots in citrus family farming units
Participative workshop in El Colorado, Formosa, Argentina - August 29th 2019

Results

- 16 demonstration lots (LD) implementing integrated pest and disease management (IPM) installed with 16 conventional lots (LC) in family farming units.
- 141 monitoring activities held regarding pests and diseases control in LD and LC.
- 3 agreed protocols: Selection of LD in FA; Pest monitoring; Field notebook.
- Biological control in lots in Bella Vista, Corrientes, Argentina. Release of Tamarixia radiata.
- Early alert system prototype: BioTic INTA - Fontagro HLB free access web portal / smartphone.
- 31 socialization workshops and participatory selection of LDs. 591 attendees.
- 28 training sessions (534 trained in vector and symptoms identification and phytosanitary evaluation methodology.

Trained in vector and HLB and Fruit quality
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Trained in vector and HLB and Fruit quality
Demonstration lots  of IPM
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Demonstration lots of IPM
Monitoring activities held regarding pests and diseases control
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Monitoring activities held regarding pests and diseases control
Agreed protocols
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Agreed protocols
Early alert system prototype: web portal/smartphone
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Early alert system prototype: web portal/smartphone
Workshops with family citrus growers
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Workshops with family citrus growers
Biological control performed
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Biological control performed
Start-up workshop
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Start-up workshop

Number of installed demonstration lots, location, citrus crops and varieties, pests and diseases monitoring carried out between October 2019 and May 2020 are shown

Demonstration lots installed and monitoring activities

Demonstration lots installed and monitoring activities

Participating Organizations

Federación Argentina del Citrus (FEDERCITRUS) - Argentina
Instituto Nacional de Investigación Agropecuaria (INIA) - Uruguay
Instituto Nacional de Tecnología Agropecuaria (INTA) - Argentina
Gobierno Autónomo Municipal de Bermejo (GAM Bermejo) - Bolivia
Universidad Nacional de Itapúa (UNI Paraguay) - Paraguay
Unión de Productores y Exportadores Frutihortícolas del Uruguay (UPEFRUY) - Uruguay
Servicio Nacional de Sanidad y Calidad Agroalimentaria (SENASA) - Argentina
Fundación ArgenINTA (ARGENINTA) - Argentina
Instituto Nacional de Investigación Agropecuaria (INIA) - Uruguay
Instituto Nacional de Tecnología Agropecuaria (INTA) - Argentina
Gobierno Autónomo Municipal de Bermejo (GAM Bermejo) - Bolivia
Universidad Nacional de Itapúa (UNI Paraguay) - Paraguay

Main donors

FONTAGRO
FONTAGRO
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E-mail: fontagro@fontagro.org