The wheat stem rust (Puccinia graminis), also known as wheat black rust, is capable of causing severe losses and can destroy entire wheat fields. It is estimated that as much as 80 percent of all wheat varieties planted in Asia and Africa are susceptible to this new strain. Developing countries that are relying on wheat and do not have access to resistant varieties will be particularly hit," Dr Diouf said. This could lead to increased wheat prices and local or regional food shortages. The...

AWB will keep its monopoly over bulk wheat exports until after the federal election under a plan that aims to defer a row with Nationals members angry about opening the market to competition. Applications by other companies to sell overseas would go to a board made up of industry players operated by the Wheat Export Authority, under the package approved in principle by cabinet. Under the overhaul, wheat companies would bid for a three-year contract to manage the national pool of wheat and...

The wheat stem rust (Puccinia graminis), also known as wheat black rust, is capable of causing severe losses and can destroy entire wheat fields. The fungus can spread rapidly and has the potential to cause global crop epidemics and wheat harvest losses of several billion dollars. It is estimated that as much as 80 percent of all wheat varieties planted in Asia and Africa are susceptible to this new strain. Developing countries that are relying on wheat and do not have access to resistant...

The wheat may have been heavily fertilized before the freeze, and without grain heads to process that nitrogen the stalks may contain abnormally high levels of nitrates, which could give nitrate poisoning to animals who feed on the hay. Teague said it takes just two hours at 28 degrees to cause moderate to severe damage to wheat grains in what is called the "boot stage. Teague added that even if the grain has been lost, it may still be possible to use the wheat as hay -- with a caveat. In...

Down a sunbaked track, 80 kilometres (50 miles) from the Thai capital, lies an idyllic rural smallholding where, against a kaleidescope of colour, farm workers in wide-brimmed hats are harvesting organically grown produce. Rai Plook Rak Farm, in Ratchaburi province, is one of many certified organic farms that have sprung up across Thailand in recent years hoping for a slice of the burgeoning market for all things chemical-free. In 2005, domestic consumption was estimated to have overtaken...