Alternative to fungicides for the control of Pecan scab

Symptoms of pecan scab on pecan fruit © Charles J. Graham

Symptoms of pecan scab on pecan fruit © Charles J. Graham

Pecan scab, caused by the fungus Fusicladium effusum, is a major yield-limiting disease of pecan (Carya illinoinensis). Planting varieties with some resistance to the disease is the most practical way to avoid losses from pecan scab, but the scab fungus can change over time to overcome host resistance. The use of chemical fungicides is another widely used method of prevention and control. However, increasing resistance of the scab fungus to fungicides, coupled with greater awareness of the environmental impact of chemicals, is prompting farmers to consider other management options.

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Elaborando recomendaciones sobre plagas en Costa Rica

Ana María Solano Guevara elaborando una Lista Verde y Amarilla (Léna Durocher-Granger)

Ana María Solano Guevara elaborando una Lista Verde y Amarilla (Léna Durocher-Granger, CABI)

English summary follows

Costa Rica es uno de los últimos países que se agregó en la metodología de Plantwise. Del 10 al 12 de setiembre 2014, se realizó en San José un taller para la elaboración de Guías de manejo de plagas que se llaman “Listas Verde y Amarilla”. Los participantes eran expertos en entomología, fitopatología y acarología así como extensionistas agrícolas de diferentes instituciones (universidades públicas, Ministerio de Agricultura y Ganadería, institutos de investigación) y regiones del país. Los participantes aprendieron a elaborar consejos claros y precisos sobre algunas de las plagas más importantes para los productores y productoras en Costa Rica. Estas Listas Verde y Amarilla producidas durante el taller estarán disponibles en el Banco de Conocimientos para consulta y distribución a los productores y productoras a través de los Doctores de plantas.

Ana María Solano Guevara, ingeniera agrónoma y estudiante de maestría de la Universidad de Costa Rica contribuyó al taller con su experiencia en la disciplina de la Acarología. Ana María nos cuenta como el taller la benefició para su trabajo diario:

“El curso que impartieron me pareció de gran utilidad para el aprendizaje sobre bases de datos novedosas y actualizadas para la consulta sobre información de plagas en los cultivos, además, sobre medidas de combate químico, lo cual, muchas veces es en lo que se incurre en errores de uso así como de recomendación técnica.

Además, el tener nuevos contactos y retroalimentación con colegas del área, amplía más los conocimientos.

Me será de utilidad este aprendizaje recibido por ustedes para contribuir en mejor medida al diagnóstico de muestras en el Laboratorio de Acarología, así como de difundir la información a los estudiantes de agronomía de la universidad.

Considero que como se ha manejado el curso, se realizó de manera adecuada; se difundió información y se crearon productos como las Listas Verde y Amarillas de algunas plagas.

Les agradezco sinceramente el tiempo dedicado, la preparación así como su disponibilidad y atención en la clase y en las preguntas que teníamos como participantes.”

Para más información sobre las clínicas de plantas en su región consulte la página de Plantwise o si tiene consulta, manda un mensaje a plantwise@cabi.org

 From September 10th to 12th, a workshop in San José was given to participants from different institutions and regions around Costa Rica. Experts in entomology, plant pathology and acarology learned how to create Pest Management Decision Guides, called Green & Yellow Lists. Ana María Solano Guevara, agronomist and M.Sc. student at the University of Costa Rica, explained how the workshop will impact her work in the future: “The course given was useful for learning new innovative and updated databases on pests and crops, as well on chemical control measures. Moreover, having new contacts and feedback from colleagues broadens your knowledge. This learning will be useful for me to contribute to give better diagnosis of samples in the Acarology Laboratory, as well as to disseminate information to agronomy students at the University.”

 

Update: Plant Health News (30 Jul 14)

Farmers in California are diverting water away from vegetable crops to rescue their almond crops from drought © Luigi Chiesa (CC BY-SA)

Californian farmers are diverting water from vegetable crops to save almonds from drought © Luigi Chiesa (CC BY-SA)

Here’s a taste of some of the latest stories about plant health, including the effects of typhoons in Taiwan and China, a new strategy for almond irrigation in California and a crackdown on fake seed sellers in Kenya.

Click on the link to read more of the latest plant health news!
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Managing plant pathogens by enhancing ecosystem services

 

Pollination, an example of an ecosystem service  © Reinhold Stansich

Pollination, an example of an ecosystem service © Reinhold Stansich

From the 8th-12th April experts met in Bellagio, Italy to develop a strategy to mitigate the effects emerging plant diseases are having on crops in sub-Saharan Africa. Among these experts were Plantwise staff. A major theme throughout the conference was ecosystem services and how agricultural biodiversity can enhance the provision of these services, creating resilient agro-ecosystems.

Click on the link below to read more about the conference:

Bellagio Center conference on dangerous plant pathogens

[Video] Invest in prevention: save money, save lives, save livelihoods

This video from the Food Chain Crisis Management Framework of FAO shows how investing in prevention of pests and diseases before they are present in a region can save money and livelihoods in the long term. Read more of this post

Marginalised issues in food security: Oxford Food Security Forum 2014

Women making tortillas in Guatemala  ©  David Amsler

Women making tortillas in Guatemala © David Amsler

A blog by Léna Durocher-Granger and Rachel Hill

On 4th May we attended the Oxford Food Security Forum’s Annual Conference. The conference aimed to address some of the topics in food security research that have become excluded or marginalised.

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Food security and Biofuels

Sunflower field © Rob Huntley iStock Images

Sunflower field © Rob Huntley iStock Images

A short extract of some of the main points raised during the course “Examining Issues around Global Food Security” by Dr Julie Flood from CABI at the Department of Continuing Education’s program of the University of Oxford on March 7th, 2014. The course aimed to highlight the issues of food security/insecurity, and particularly around growing of biofuels.

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