The expert urges Afghan farmers to tell agriculture officials immediately if they suspect stem rust in their fields.

VOA: special.2009.08.18

The disease is a form of stem rust named for its discovery in Uganda ten years ago.

VOA: special.2009.08.18

The world's last major outbreak of stem rust took place in the nineteen fifties.

VOA: special.2009.08.18

The red color is the result of iron oxide or rust.

VOA: special.2009.04.15

Stem rust produces reddish-brown spots on the stems of infected plants.

VOA: special.2009.08.18

"This is a new strain of stem rust organism that has the power to destroy most of the wheat varieties being grown around the world."

VOA: standard.2009.09.16

We have a big job on our hands,". Borlaug expressed concern about a new variety of wheat stem rust attacking wheat plants in Africa and advocated greater coordination of researchers around the world to stop its spread.

VOA: standard.2009.09.13