@ARTICLE{Orlikowski_Leszek_B._Effect_2001, author={Orlikowski, Leszek B.}, number={No 3}, journal={Journal of Plant Protection Research}, pages={288-294}, howpublished={online}, year={2001}, publisher={Committee of Plant Protection PAS}, publisher={Institute of Plant Protection – National Research Institute}, abstract={Amendment of potato-dextrose agar with grapefruit extract at dose 40μg/cm3 inhibited linear growth of Phytophthora cryptogea about 50%. At such concentration of the product in soil leachate formation of zoosporangia was inhibited about 95%. Application of grapefruit extract as peat drench reduced population density of the pathogen about 80% and this high activity was observed at least 30 days.}, type={Article}, title={Effect of grapefruit extract on development of Phytophthora cryptogea and control of foot rot of gerbera}, URL={http://ochroma.man.poznan.pl/Content/131184/PDF-MASTER/13_PLANT_41_3_2001_Orlikowski_Effect.pdf}, keywords={development, population, direct action, hyphae, zoosporangia, concentration}, }