R. Kolesnikova1 Received October 12, 2010 S u m m a ry The modern triticale varieties have high feed advantages, they have a good tolerance to difficult environments and they are resistant to majority of phytopathogens. <...> For the period of 2005-2006 phytosanitary monitoring for the triticale samples of different ecologo-geographic origin with spring (327 samples) and winter (37 samples) type of development from N.I. Vavilov All-Russian Scientific Research Institute of Plant Growing on the resistance to the basic wheat pathogens of Northwest region of the Russian Federation (brown and yellow rust, wheat leaf blotch, powdery mildew) was carried out. <...> In addition, the authors determine the duration of interphase periods, the height of plants, the mass of 1000 grains. <...> The maximal number of triticale samples, introduced from the European part of the former Soviet Union (Ukraine, Belarus) was characterized by absence of defeat symptoms by brown rust and wheat leaf blotch agents. <...> Pathogenesis of the yellow rust agent was not found on the triticale samples, received from Central Asia, Northern Europe, Australia, South America, Asia and Africa. <...> As was revealed, the greatest degree the attribute of triticale origin influenced on wheat leaf blotch pathogenesis, in the least – on brown and yellow rusts pathogenesis. <...> In the greater degree the plants development type affect the wheat leaf blotch pathogenesis on triticale samples of the Russian selection and in smaller - on triticale samples, received from European part of Former USSR, Northern Europe, East Europe, Central Europe. <...> Modern varieties of triticale successfully compete with best cultivars of rye, barley, oats, and wheat in yield of grain and green mass, as well as other advantages: high fodder value; ability to grow on poor, flooded, and acidic soils; good tolerance to adverse hibernation conditions and cold snap in spring period; resistance to many phytopathogens (1-5). <...> The purpose of this work was testing triticale samples of different eco-geographic origin for resistance to major phytopathogens common to the North-West of Russian Federation. <...> Observations were conducted in the experimental field of N.I. Vavilov Research and Development Institute of Plant Industry (VIR) in 2005-2006. <...> The material for testing were triticale varieties and hybrids from VIR collection <...>