Possibilities of biological protection from plant pathogens

Čovjek najviše od svih živih bića svojom aktivnošću ozbiljno ugrožava okoliš tehnološkim razvojem, urbanizacijom i demografskom ekspanzijom. Na taj način izmijenjen okoliš šteti njegovu zdravlju i ugrožava mu opstanak. Saznanja o riziku pri primjeni fungicida po rukovatelja, potrošača, životnu sredinu, neuspjeh pri rješavanju nekih oboljenja podzemnih i nadzemnih organa biljaka, brza pojava rezistentnih jedinki u populaciji nekih štetnih vrsta, zabrana primjene sintetskih pesticida u vrijeme zriobe i berbe, dovela su do povećanja interesa i javnosti i struke za uvođenje alternativnih mjera u zaštiti bilja, gdje se ubrajaju biološki preparati i druge nepesticidne mjere. U zaštiti bilja protiv bolesti bilo bi pogrešno smatrati samo primjenu zaštitnih sredstava sukladna zakonima i pravilnicima. Veliku i vrlo važnu ulogu imaju preventivne mjere, počevši od planiranja plodoreda, izbora otpornih sorti itd. Biološke mjere borbe temelje se na uništavanju bolesti s pomoću njihovih prirodnih neprijatelja koji se razvijaju i razmnožavaju na pojedinim vrstama biljaka. Uspješna poljoprivredna proizvodnja, posebice ekološka, zahtjeva puno rada, truda, vremena, ali i znanja.With its activity mankind has seriously endangered the environment with technological development, urbanization and demographic expansion. In this way, an altered environment damages his health and endangers his survival. Risk awareness on the application of fungicide by operator, consumer, environment, failure to solve some diseases of the plant's underground and overhead bodies, the rapid occurrence of resistant organisms in the population of some harmful species, the ban on the use of synthetic pesticides at time of berry and harvest, has led to an increase in interest of the public and the of professionals for introducing alternative crop protection measures, including biological preparations and other nonpesticidal measures. In the protection of plants against the disease, it would be wrong to consider only the application of protective means in accordance with the laws and regulations. Important roles have preventative measures, starting with crop rotation, choice of resistant varieties etc. Biological measures are based on the treatment of the disease with their natural enemies that are developing and propagating on certain plants species. Successful agricultural production, especially biological, requires a lot of work, effort, time, and knowledge