Stem Rust at Very Low Incidence in Sudan and Egypt
Extensive field surveys undertaken in Sudan (Feb 2010) and Egypt (Feb-Apr 2010) revealed a very low incidence of stem rust in farmers fields. Stem rust was not observed on-farm in Sudan and only trace amounts were recorded at three locations in Egypt (see country maps). A total of 83 locations were surveyed in Egypt and 34 locations in Sudan. Stem rust was present at research stations in both countries. Initial trap plot observations in Egypt gave no indication of the presence of the Ug99 lineage at any sites.