Factsheet of the month: July – Maize Lethal Necrosis Disease

On Friday, the International Plant Protection Convention (IPPC) released an official pest report, submitted by KEPHIS, for the presence of Maize lethal necrosis disease (MLND) in Kenya. This disease is caused by a co-infection of Maize Chlorotic Mottle Virus and another cereal potyvirus, such as Sugarcane Mosaic Virus, Wheat Streak Mosaic Virus or Maize Dwarf Mosaic Virus.…
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New strategy required for delaying insect resistance to Bt crops

Transgenic Bt crops have been grown around the world since the 1990s and have contributed to increased yields by controlling agricultural pests. Due to the importance of this technology, there has been continuous study into the development of resistance to Bt crops and how best to avoid this happening. A recent investigation into the rapid…
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Update: Plant Health News (31 Jul 13)

Here’s a taste of some of the latest stories about plant health, including reports of citrus greening (huanglongbing) in Paraguay, the discovery of genes resistant to Phytophthora sojae in soybeans and a computer model that gives early warning signs of crop failure. Click on the link to read more of the latest plant health news!
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Corn rootworm resistance to crop rotation explained

Crop rotation is often recommended as an effective control method against agricultural pests, including corn rootworms. Rotation works by removing the host on which the pest feeds and reproduces, and planting a crop which they are unable to live on. This reduces the number of pests that survive to the next season. Crop rotation is…
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Maize Lethal Necrosis Disease Spreads To Uganda

Maize Lethal Necrosis disease, which was first reported in Kenya and Tanzania, has now spread to Uganda, raising concerns for food security in the country. The Ministry of Agriculture has warned that Maize Lethal Necrosis has been reported in districts in eastern Uganda, including Busia and Tororo. A spokesman for the Agriculture Research Organisation, Robert…
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How The Gates Foundation and Carlos Slim are Supporting Innovation and Crop Improvement For Farmers

The Bill & Melinda Gates Foundation and Fundación Carlos Slim have announced a partnership in support of efforts by the Centro Internacional de Mejoramiento de Maíz y Trigo (International Maize and Wheat Improvement Center CIMMYT) in Mexico to develop and disseminate higher-yielding, more resilient wheat and maize varieties.
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CABI scientists help to uncover new occurrences of plant diseases

In 2012, CABI scientists continued to contribute to the discovery of new occurrences of plant pests and diseases, via the Plantwise diagnostic service. CABI’s Plantwise initiative offers a free service for eligible clients in developing countries, providing disease identification support to plant clinics. Every year, the DFID-funded service receives more than 500 samples from 80…
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Armyworms devastate crops in Zambia, threatening food security

Armyworms in Zambia are threatening food security by reducing crop yields. This was the message from former Agriculture Minister Eustarkio Kazong, speaking in an interview for Zambian radio station, QFM. Armyworms are attacking crops, causing major damage to maize, cassava, sorghum and rice. In Kabwe, the capital of the Central Province where the first cases…
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New Research on Maize Lethal Necrosis Disease in Kenya

Update [March 2013]: More information about the pests and viruses associated with Maize Lethal Necrosis disease can be found on the Plantwise Knowledge Bank. The production of maize, Kenya’s staple food crop, is severely under threat from a fast spreading maize disease known as Maize Lethal Necrosis (MLN) disease. The disease is the result of…
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US drought could spark a global food crisis

The US is currently facing its most severe drought of the past 50 years, raising questions about the implications for global food security. The US is a major producer of grain, including maize and soybean, which have both been adversely affected by the drought, causing a knock-on effect for the global market. The predicted reduction…
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