Wheat rust: The fungal disease that threatens to destroy the world crop

Scientists are warning that wheat is facing a serious threat from a fungal disease that could wipe out the world’s crop if not quickly contained.

Wheat rust, a devastating disease known as the “polio of agriculture”, has spread from Africa to South and Central Asia, the Middle East and Europe, with calamitous losses for the world’s second most important grain crop, after rice. There is mounting concern at the dangers posed to global food security.

Experts have been aware of the threat since a major epidemic swept across North America’s wheat belt in the 1950s, destroying up to 40 per cent of the crop. Since then, tens of millions of pounds have been invested in developing rust-resistant varieties of the grain. However, an outbreak in Uganda in 1999 was discovered to have been caused by a virulent mutation of the fungus. There has been alarm at the speed at which further mutations have subsequently developed and spread across continents.

Plant scientists in Britain estimate the latest developments mean that 90 per cent of all current African wheat varieties are now vulnerable to the disease.

Last year, Germany witnessed its first outbreak of stem rust in more than 50 years. The outbreak was spurred by “a period of unusually high temperatures and an unusually late development of the wheat crop due to cold spring and early summer temperatures”, explained Kerstin Flath, of Germany’s Federal Research Centre for Cultivated Plants.

A further outbreak occurred in Ethiopia last November, with farmers losing on average 50 per cent of their wheat crop; the worst affected lost up to 70 per cent. Experts met in Mexico last month to discuss the threat. Work is under way to examine the different strains, to identify similarities.

According to Dr David Hodson, of the International Maize and Wheat Improvement Center in Addis Ababa, the disease’s threat lies in its ability to cause “large- scale destruction in a very short period of time over very large cultivated areas”. Rust epidemics could be compared to a forest fire, Dr Hodson said. Once it manages to gain ground it can very quickly spread out of control. The fungus reproduces millions of wind-borne spores, each of which is capable of starting a new infection.

Fazil Dusunceli, of the UN’s Food and Agriculture Organisation, said that the fungal disease, along with drought, are major challenges to wheat production globally.

He warned that countries need to react quickly to counter the new fungal varieties: “Production of new seed varieties is critical.” He said the UN was looking to countries such as the US, Britain and other European nations to lead the fight. “Developed countries have well-established institutions, programmes and capacities that developing countries lack. The developing countries are not sufficiently prepared to fight against these diseases and so when epidemics occur they encounter significant losses,” he said.

British scientists from the Sainsbury Laboratory, together with those from the world-renowned John Innes centre, both in Norwich are in the vanguard of efforts to combat the outbreaks. The UK teams are trying to control the disease with genetics rather than develop more powerful chemical fungicides. The work currently includes cloning new sources of resistance from wild grasses and from barley, which they think is essentially completely resistant to wheat rust.

Academics at Cambridge University, led by Professor Christopher Gilligan, are using sophisticated mathematical models to help predict the likely spread from outbreaks. “The project is designed to develop and test mathematical models that can be used to improve understanding of when, where and how disease spreads, which regions are most at risk and how to control epidemics,” Professor Gilligan said.

Using models from the UK Meterological Office, the Cambridge team were able to predict the likely spread of the Ethiopian outbreak. “The results helped to direct sampling teams to find further outbreaks, from which it became apparent the epidemic was more severe and widespread than had been previously reported.” Further work by the modellers has identified which of the countries surrounding Ethiopia in Africa, and the Middle East, are most at risk. “The current evidence suggests that the risk of direct spread to the Indian subcontinent is small during the winter months,” Professor Gilligan said.

“The models show, however, that the fungus could spread in stages, by first infecting wheat crops in the Middle East and then spreading to other major wheat-growing areas.”

According to scientists, climate change is in part behind the threat. The aggressive spread of two forms of the fungus is widely believed to be linked to its rapid adaptation to warmer conditions. Dr Hodson said this is resulting in outbreaks in countries not previously affected, with epidemics in several countries from North Africa to South Asia. More

 

 

© 2014

Food shortages could be most critical world issue by mid-century

The world is less than 40 years away from a food shortage that will have serious implications for people and governments, according to a scientist. "For the first time in human history, food production will be limited on a global scale by the availability of land, water and energy," said a senior science advisor on food security.

"Food issues could become as politically destabilizing by 2050 as energy issues are today."

The world is less than 40 years away from a food shortage that will have serious implications for people and governments, according to a top scientist at the U.S. Agency for International Development.

"For the first time in human history, food production will be limited on a global scale by the availability of land, water and energy," said Dr. Fred Davies, senior science advisor for the agency's bureau of food security. "Food issues could become as politically destabilizing by 2050 as energy issues are today."

Davies, who also is a Texas A&M AgriLife Regents Professor of Horticultural Sciences, addressed the North American Agricultural Journalists meeting in Washington, D.C. on the "monumental challenge of feeding the world."

He said the world population will increase 30 percent to 9 billion people by mid-century. That would call for a 70 percent increase in food to meet demand.

"But resource limitations will constrain global food systems," Davies added. "The increases currently projected for crop production from biotechnology, genetics, agronomics and horticulture will not be sufficient to meet food demand." Davies said the ability to discover ways to keep pace with food demand have been curtailed by cutbacks in spending on research.

"The U.S. agricultural productivity has averaged less than 1.2 percent per year between 1990 and 2007," he said. "More efficient technologies and crops will need to be developed -- and equally important, better ways for applying these technologies locally for farmers -- to address this challenge." Davies said when new technologies are developed, they often do not reach the small-scale farmer worldwide.

"A greater emphasis is needed in high-value horticultural crops," he said. "Those create jobs and economic opportunities for rural communities and enable more profitable, intense farming." Horticultural crops, Davies noted, are 50 percent of the farm-gate value of all crops produced in the U.S.

He also made the connection between the consumption of fruits and vegetables and chronic disease prevention and pointed to research centers in the U.S. that are making links between farmers, biologists and chemists, grocers, health care practitioners and consumers. That connection, he suggested, also will be vital in the push to grow enough food to feed people in coming years.

"Agricultural productivity, food security, food safety, the environment, health, nutrition and obesity -- they are all interconnected," Davies said. One in eight people worldwide, he added, already suffers from chronic undernourishment, and 75 percent of the world's chronically poor are in the mid-income nations such as China, India, Brazil and the Philippines.

"The perfect storm for horticulture and agriculture is also an opportunity," Davies said. "Consumer trends such as views on quality, nutrition, production origin and safety impact what foods we consume. Also, urban agriculture favors horticulture." For example, he said, the fastest growing segment of new farmers in California, are female, non-Anglos who are "intensively growing horticultural crops on small acreages," he said.

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The above story is based on materials provided by Texas A&M AgriLife Communications.

 

© 2014

Food shortages could be most critical world issue by mid-century

The world is less than 40 years away from a food shortage that will have serious implications for people and governments, according to a top scientist at the U.S. Agency for International Development.

Dr. Fred Davies

"For the first time in human history, food production will be limited on a global scale by the availability of land, water and energy," said Dr. Fred Davies, senior science advisor for the agency's bureau of food security. "Food issues could become as politically destabilizing by 2050 as energy issues are today."

Davies, who also is a Texas A&M AgriLife Regents Professor of Horticultural Sciences, addressed the North American Agricultural Journalists meeting in Washington, D.C. on the "monumental challenge of feeding the world."

He said the world population will increase 30 percent to 9 billion people by mid-century. That would call for a 70 percent increase in food to meet demand.

"But resource limitations will constrain global food systems," Davies added. "The increases currently projected for crop production from biotechnology, genetics, agronomics and horticulture will not be sufficient to meet food demand." Davies said the ability to discover ways to keep pace with food demand have been curtailed by cutbacks in spending on research.

"The U.S. agricultural productivity has averaged less than 1.2 percent per year between 1990 and 2007," he said. "More efficient technologies and crops will need to be developed—and equally important, better ways for applying these technologies locally for farmers—to address this challenge." Davies said when new technologies are developed, they often do not reach the small-scale farmer worldwide.

"A greater emphasis is needed in high-value horticultural crops," he said. "Those create jobs and economic opportunities for rural communities and enable more profitable, intense farming." Horticultural crops, Davies noted, are 50 percent of the farm-gate value of all crops produced in the U.S.

He also made the connection between the consumption of fruits and vegetables and chronic disease prevention and pointed to research centers in the U.S. that are making links between farmers, biologists and chemists, grocers, health care practitioners and consumers. That connection, he suggested, also will be vital in the push to grow enough food to feed people in coming years.

"Agricultural productivity, food security, food safety, the environment, health, nutrition and obesity—they are all interconnected," Davies said. One in eight people worldwide, he added, already suffers from chronic undernourishment, and 75 percent of the world's chronically poor are in the mid-income nations such as China, India, Brazil and the Philippines.

"The perfect storm for horticulture and agriculture is also an opportunity," Davies said. "Consumer trends such as views on quality, nutrition, production origin and safety impact what foods we consume. Also, urban agriculture favors horticulture." For example, he said, the fastest growing segment of new farmers in California, are female, non-Anglos who are "intensively growing horticultural crops on small acreages," he said. More

 

© 2014

'This Is Not Over': Gulf Life Still Reeling From Toxic BP Spill

Report on four year anniversary of worst oil disaster in US history details fourteen ailing species, and raises the question of

"What should be the legal liability for polluting the Global Commons'?

Nearly four years after BP's Deepwater Horizon oil catastrophe, plants, animals, and fish in the Gulf of Mexico are still reeling from the toxic spill, according to a report released Tuesday by the National Wildlife Federation.

The report, which arrives just ahead of the disaster's anniversary, examined 14 species of wildlife in the Gulf and found ongoing impacts of the disaster that could last for decades.

"Four years later, wildlife in the Gulf are still feeling the impacts of the spill," said Doug Inkley, senior scientist for the National Wildlife Federation. "Bottlenose dolphins in oiled areas are still sick and dying and the evidence is stronger than ever that these deaths are connected to the Deepwater Horizon. The science is telling us that this is not over."

According to the findings, in 2013 dolphins were dying at three times normal rates, with many suffering from "unusual lung damage" and immune system problems.

In addition to the ongoing plight of dolphins in Gulf waters, the researchers found that every year for the past three years roughly five hundred dead sea turtles are found near the spill, "a dramatic increase over normal rates." These sea turtles only recently recovered from near extinction—a recovery that has now been drastically threatened by the spill.

"The Kemp’s ridley sea turtle has long been the poster child for the possibilities of restoration in the Gulf," said Pamela Plotkin, associate research professor of oceanography at Texas A&M University and director of Texas Sea Grant. "Once close to extinction, it has rebounded dramatically over the past thirty years. But four years ago, the numbers of Kemp’s ridley appear to have flat-lined. We need to monitor this species carefully, as the next few years will be critical."

According to the report, sperm whales in the area are showing higher levels of "DNA-damaging metals" than others in other parts of the world—"metals that were present in oil from BP’s well."

In addition, deep sea coral colonies, which "provide a foundation for a diverse assortment of marine life," within seven miles from the site of the spill, were still "heavily impacted."

Other findings, as stated by the group, include:

• Oyster reproduction remained low over large areas of the northern Gulf at least through the fall of 2012.
• A chemical in oil from the Deepwater Horizon spill has been shown to cause irregular heartbeats in bluefin and yellowfin tuna that can lead to heart attacks, or even death.
• Loons that winter on the Louisiana coast have increasing concentrations of toxic oil compounds in their blood.

"Despite what BP would have you believe, the impacts of the disaster are ongoing," said Sara Gonzalez-Rothi, the National Wildlife Federation’s senior policy specialist for Gulf and coastal restoration. "Last year, nearly five million pounds of oiled material from the disaster were removed from Louisiana’s coast. And that’s just what we’ve seen. An unknown amount of oil remains deep in the Gulf."

The Gulf oil disaster—which is the worst in U.S. history—"will likely unfold for years or even decades," NWF writes. "It is essential that careful monitoring of the Gulf ecosystem continue and that mitigation of damages and restoration of degraded and weakened ecosystems begin as soon as possible."

Despite the ongoing travesty the Environmental Protection Agency announced last month that it removed its ban on BP contracts in the U.S. and new drilling leases, including in the Gulf of Mexico.

Shortly after, the oil giant won bids to start new drilling operations in two dozen separate locations, a total pricetag of $54 million.

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Given that the oceans are one continous body of water that encircle the globe, and furthermore that ocean currents will eventually spread the pollutants mentioned above around the world, affecting all inhabitants of the planet, I would argue that all States / countries would be justified in suing BP. Until we can implement Ecocide as the Fifth Crime Against Peace under the Treaty of Rome this may be the only way to stop the destruction of the ecosystem that all living things on Earth are dependant of for their survival. Editor

 

© 2014

Geoff Lawton's Permaculture Design Course (Online)

For Those Who May Be Interested

If you are interested in growing your own food and if you have a farm this course is excellent.

Last year saw the launch Geoff Lawton's first online Permaculture Design Certificate (PDC) course, with the hope of exponentially increasing our educational reach. It was a 'scary' undertaking, in that, being the first course, we were not sure what to expect.

But we are proud to share that the course brought an overwhelmingly positive response. I've been looking around the inner 'halls' of the course system and reading comment after positive comment, and I've seen many of the amazing designs the students submitted at the end of their training. The best news is that this course is reaching people who would otherwise never get to take a PDC course, due to remote locations, family and work commitments, health constraints, cost, etc. Doctors, lawyers, housewives, politicians, activists, nurses, rural farmers, urbanites, pilots, industrialists, even experienced Permaculture teachers - the list goes on - all are coming together in the same system to learn, share, network and cause ripples of influence we may never be able to measure.

This last weekend Geoff's second online PDC was opened for registrations - for the new and even more expansive 2014 course (we keep adding material!). This course is run only once per year, and the door for registrations closes this Sunday, April 6th, 2014. If you want to get onto this course, or if you know someone who should, there's only three days left before the door shuts until next year, and the course begins. More

If you're unsure of the value of this life-altering course, please take a few minutes to scan the many comments below this post: http://permaculturenews.org/2013/10/28/geoff-lawtons-online-permaculture-design-course-worth/

 

© 2014

World Bank's new agriculture project threatens food security, warn experts

A World Bank pilot project designed to measure and improve agricultural productivity will jeopardise food security in developing countries and create a "one-size-fits-all model of development where corporations reign supremely", according to a coalition of thinktanks and NGOs.

An international campaign – Our Land; Our Business – is urging the Bank to abandon its Benchmarking the Business of Agriculture (BBA) programme, claiming it will serve only to encourage corporate land grabs and undermine the smallholder farmers who produce 80% of the food consumed in the developing world.

The campaign, whose signatories include the US-based Oakland Institute thinktank and the Pan-African Institute for Consumer Citizenship and Development, argues that the Bank's attempts to adapt its ease-of-doing-business rankings to the agricultural sector will sow poverty "by putting the interests of foreign investors before those of locals".

The BBA was devised after the G8 asked the Bank to explore a doing business in agriculture index two years ago under the G8's controversial New Alliance for Food Security and Nutrition programme.

BBA pilot schemes, which receive funding from the US development agency, USAid, the UK's Department for International Development (DfID), the Dutch and Danish governments and the Bill and Melinda Gates Foundation, are being trialled in 10 countries: Ethiopia, the Philippines, Guatemala, Rwanda, Morocco, Spain, Mozambique, Uganda, Nepal and Ukraine. Among the issues under investigation are access to seeds, fertiliser, mechanisation, finance, markets, transport and technology.

"Despite a language that claims concerns for small farmers, the goal of this newagriculture-focused ranking system is far too clear: [to] further open up countries' agriculture sectors to foreign corporations," the campaign said in a statement. "The doing business [rankings] give points to countries when they act in favour of 'ease of doing business'. This consists of smoothing the way for corporations' activity in the country by, for instance, cutting administrative procedures, lowering corporate taxes, removing environmental and social regulations or suppressing trade barriers."

The campaigners point to Liberia – where dozens of business reforms between 2008 and 2011 attracted considerable foreign direct investment that resulted in the corporate acquisition of more than 607,000 hectares in the space of a few years – and the Philippines, which shot 40 places up the doing business rankings between 2011 and 2014, and where foreigners last year acquired 5.2m hectares of land.

They say that squeezing out the small farmers, who often lack tenure security and government help yet still produce the overwhelming majority of food in developing nations, is not only unfair but also dangerous.

"It is time that the World Bank ceases to ignore that smallholders are the only future of an agriculture that can guarantee food security, ensure a sustainable use of natural resources and bring human development," the statement concludes. "We know far too well how damaging large-scale industrial farming is to the environment and the people. This model shall not be expanded to the developing word." More

 

© 2014