• The Beauty of Crop Diversity in Prolonged Drought

    The Beauty of Crop Diversity in Prolonged Drought

    July 30th, 2013 | Sub Saharan Africa, Uganda

           Uganda has experienced some long period of drought from May up to today. Farmers in Nakaseke that hosted Common Bean mixture trials have ended up being mixed as well when they look at the way the different varieties have responded to the drought. Some varieties like Akeru short have greatly succumbed to […]

    More »
  • Damage, Diversity and Genetic Vulnerability

    Damage, Diversity and Genetic Vulnerability

    June 6th, 2013 | Featured, Publications

    report proceedingsIn 2002, a team of international and national partners from China, Ecuador, Morocco and Uganda, Bioversity International, FAO and faculty from Universities in the USA, Australia, and Europe came together to discuss ideas on how traditional and modern crop varietal diversity could be used within crop production and pest management strategies to reduce current […]

    More »
  • The Conservation of Diversity versus the Conservation of Poverty

    The Conservation of Diversity versus the Conservation of Poverty

    December 18th, 2012 | News

    There is a direct correlation between crop diversity and pest and disease control. When farmers grow varieties with uniform resistance to a pest or disease, crops can become more susceptible to attack by bacteria or viruses, and epidemics can result. The resulting food and economic losses also show how pests and diseases are continuously evolving […]

    More »
  • Virulence/resistance variation in the Northern Corn Leaf Blight pathosystem in Cotacachi and Saraguro, Ecuador

    November 6th, 2012 | Ecuador

    By: Mayra Cathme,  Mayra Llamatumbi and José B. Ochoa. Maize is an important food crop in the highlands valleys of Ecuador. Among other reasons farmers maintain maize diversity to reduce biotic stress losses (hypothesis). Northern leaf blight (NLB) ( Exserohilum turcicum(Pass.) Leonard & Suggs is an important disease. The avirulence/resistance gene for gene relationship has […]

    More »
  • Can Crop Diversity Reduce Disease Pressure? The Case of Maize in China

    Can Crop Diversity Reduce Disease Pressure? The Case of Maize in China

    August 4th, 2011 | China

    Small holder farmers are constantly fighting with pests and diseases and every year they need to bet on which options, in terms of varieties and crops, will reduce the loss caused by pests and diseases. This is a real challenge for them as the type of pests and pathogens in any given year or cropping […]

    More »
  • Can Biodiversity be Part of Pest and Disease Manage? Asking the Right Questions

    Can Biodiversity be Part of Pest and Disease Manage? Asking the Right Questions

    July 28th, 2011 | Bioversity Headquarters, News

    Much of the 30% of the world’s annual harvest lost to pests and diseases occurs in developing countries.   The resulting economic and food resource costs are, to a significant extent, a consequence of crops growing in monocultures and the continuing evolution of new races of pests and pathogens that are able to overcome resistance genes […]

    More »
  • Climate Changes and Pests and Diseases: a Quick Overview

    Climate Changes and Pests and Diseases: a Quick Overview

    July 20th, 2011 | Bioversity Headquarters, News

    The effects of climate change on potential abiotic stresses are well known. Changes in CO2 concentration, increased temperature, increased drought, changing on rainfall patterns have all been documented in the IPCC reports (http://www.ipcc.ch/publications_and_data/publications_and_data_reports.shtml) and in several recent publications. The effects of climate change will be different in different parts of the world and there exist […]

    More »
  • Can Crop Diversity Reduce Pests and Diseases Pressure? The case of common bean in Uganda

    Can Crop Diversity Reduce Pests and Diseases Pressure? The case of common bean in Uganda

    July 15th, 2011 | News, Uganda

    Our team in Uganda led by John Mulumba Waswa and Rose Nankya was prepared for interviewing 60 farmers in each of the three sites where beans are the target crop (Nakaseke, Kabwohe, and Rubaya). The team is composed of farmers that are directly involved in the project and were trained to conduct the interviews. The […]

    More »

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