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SA growers advised to monitor crops as stem rust emerges
South Australian grain producers are encouraged to closely monitor wheat crops following the emergence of both stem and leaf rust on the West Coast and in the Lower North.
Stem rust has been found in an area of about 16 kilometres in diameter near Kalanbi, north-west of Ceduna. Crops of Yitpi have been mostly affected.
SARDI senior plant pathologist Dr Hugh Wallwork said that a single infected plant has also now been observed at Pt Kenny on the West Coast, suggesting that the rust has been distributed more widely.
“Most crops in the area are in advanced stages of grain filling ... |
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Air pollutants from abroad a growing concern, says new report
Plumes of harmful air pollutants can be transported across oceans and continents -- from Asia to the United States and from the United States to Europe -- and have a negative impact on air quality far from their original sources, says a new report by the National Research Council. Although degraded air quality is nearly always dominated by local emissions, the influence of non-domestic pollution sources may grow as emissions from developing countries increase and become relatively more important as a result of tightening environmental protection standards in industrialized countries.
`Air pollution ... |
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