In the period 2009-20010, efficiency tests in maize crop were carried out with the aim of monitoring of fluroxypyr efficiency in control of broadleaved weed species. Trial was set up at two sites and test type was randomized bloc design. Applications of herbicides were performed in the phase of 3-6 leaves of maize. Efficiency evaluation of the herbicides was performed twice, visually. Results showed that fluroxypyr can be successfully applied for control of great number of broadleaved weeds such as: Amaranthus retroflexus L., Chenopodium album L., C. hybridum L., Datura stramonium L., Solanum nigrum L.