In the years 1977-1979 and 2000 the bugs (Heteroptera) were collected from yarrow, well-known herbaceous plant. It turned out that the bugs made up to 30% on average of all arthropods collected from yarrow, The most numerous were phytophagous bugs (79-96%), among them the known pest of genera Lygus and Plagiognathus. Among zoophagous bugs the most numerous were genera Nab is and Orius. Both of phytophagous and zoophagous bugs of these genera had their life cycle on yarrow. For comparison Heteroptera from yarrow growing in the wild were also collected.