The purpose of the official variety trials is to evaluate the cultivation value of plant varieties. Plant disease resistance is an important factor in the cultivation value of cereal varieties. Most of the information on cereal diseases, snow mould, powdery mildew, rusts and leaf spot diseases, in this report is based on the observations made from the official variety field trials during 2003 2010. Disease pressure in trials was based on natural infection. The susceptibility of spring wheat varieties to common bunt (stinking smut), Stagonospora blotch and tan spot and barley varieties to barley leaf stripe were tested in infection trials. The results of common bunt are based on the trials done during 2002 2009. The trials of barley stripe were done in 2002 2009 and the trials of Stagonospora blotch and tan spot were done in 2006 2010. The data was analyzed using linear mixed models. The estimated means for the different varieties are comparable despite the different trial periods. The results for control and all the other varieties are given in the tables in order of susceptibility.