Scientists
and researchers from all over the world met at the International Center
for Agricultural Research in the Dry Areas (ICARDA) to standardize
protocols and strengthen international collaboration to combat Stem
Rust, a devastating wheat disease that is quickly spreading across
the Near East and West Asia region.
The two-day "Stem Rust Baseline Survey Workshop on Standardizing
Protocols and International Collaboration" was held at ICARDA,
Aleppo, Syria on 10 and11 March. The workshop was jointly organized
by ICARDA, CIMMYT, FAO and Cornell University, USA under the Borlaug
Global Rust Initiative.
Some 49 scientists and researchers from national agriculture research
systems of Egypt, Eritrea, Ethiopia, Iran, Kenya, Morocco, Nepal,
Pakistan, Sudan, Syria, Tunisia, Turkey, Uruguay and Yemen, and various
international research institutes attended the workshop.
Agriculture scientists are endeavoring to stop the spread of the devastating
fungus, which has now been found in Iran. Historically, sporadic epidemics
of stem rust, also known as black rust, have plagued wheat production.
An outbreak of the disease in North America in the 1950s destroyed
up to 40% of the spring wheat crop.
Stem rust is once again on the move. In 1999, scientists discovered
a new strain of the fungus in Uganda, now known as Ug99 that has defeated
the resistance in varieties that were resistant to stem rust in the
past. Over the past few years, Ug99 has infected crops in North and
East African countries and in early 2006 it was found in Yemen.
Dr Mahmoud Solh, ICARDA Director General, inaugurating the workshop
underscored the need for a concerted global effort to contain the
spread of the devastating stem rust, Ug99.
"We all know that Ug99 is capable of causing enormous losses
to wheat production and food security in the Horn of Africa, the Nile
Valley countries, West Asia, North Africa and even worldwide unless
it is controlled through deployment of wheat varieties with durable
rust resistance, and other means to combat the spread of disease.
This effort is beyond the capacity of any one country or any one institution.
This certainly needs a global effort," Dr Solh said.
The Director General said that the biggest casualty thus far had been
in Ethiopia, Kenya and Yemen. "However, the race has now arrived
in Iran, a country with 6 million hectares of wheat. The pathogen
is certainly moving quicker than originally anticipated. Therefore,
surveillance, monitoring and tracking of this new strain is essential
for establishing an integrated strategy for control of the disease."
Dr Solh said.
Dr Solh pointed out that Ug99 was confirmed in Yemen as had been predicted
based on the knowledge of earlier movements of Yellow Rust. "We
have the conviction that Ug99 will spread beyond Iran faster and may
take additional pathways. With the long distance travel of rust spores,
it is only a matter of time until Ug99 spreads further into the Near
East, the Mediterranean Region including N. Africa and South Europe
and possibly Eastern Europe, Russia, Central Asian countries, South
Asia and East Asia," he cautioned. It is certainly a serious
threat to global food security.
In October last year scientists and researchers had met in Addis Ababa,
Ethiopia to establish an early warning system to check the spread
of stem rust. Based on their deliberations researchers had set up
a survey system that would help them identify spread of the fungus.
Contact Scientist : Dr Richard
Brettell
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About
ICARDA: Established in 1977, ICARDA (www.icarda.org) is one of the 15
international research centers supported by the Consultative Group on
International Agricultural Research (CGIAR). ICARDA serves the entire
developing world for the improvement of barley, lentil, and faba bean;
and dry-area developing countries for the on-farm management of water,
improvement of nutrition and productivity of small ruminants (sheep and
goats), and rehabilitation and management of rangelands. In the Central
and West Asia and North Africa (CWANA) region, ICARDA is responsible for
the improvement of durum and bread wheats, chickpea, pasture and forage
legumes and farming systems; and for the protection and enhancement of
the natural resource base of water, land, and biodiversity.
The Consultative Group on International Agricultural Research (CGIAR)
(www.cgiar.org) is a strategic alliance of countries, international and
regional organizations, and private foundations supporting15 international
research centers that mobilizes cutting-edge science to promote sustainable
development by reducing hunger and poverty, improving human nutrition
and health, and protecting the environment.
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