Abstract: The thrips species, Thrips tabaci Lindeman, Frankliniella occidentalis (Pengande), (Thysanoptera: Thripidae), are the most common pests on the cultivated plants. The different color traps were tested to learn attraction of the thrips species on the Canola and Napa cabbage plants in Colorado. The neon yellow, orange, neon orange and neon pink were attractive for the thrips species on the brassica crops. The blue, white, silver, aluminum dull surface and aluminum shiny surface color traps were not attractive for thrips species.