Plant protection products containing microorganisms may constitute a worthy tool in integrated pest management. There are 37 different microorganisms (21 fungi, 11 bacteria and 5 viruses) approved for use in plant protection in EU. The majority of microorganism – 22 are approved as fungicides, 13 as insecticides and 2 as nematicides. Their utilization in member states is however very differentiated. No Member State does use the full pool of approved microorganisms. The biggest diversity of microbial products is registered in France and Italy – where respectively 22 and 21 microorganisms are used, while the lowest in Latvia – only 1. On the Polish market there are 9 microbial products containing 6 different microorganisms.