The subject of the studies concerred pathogenic fungi (Alternaria alternata 17, Ascochyta pisi 31, Botrytis cinerea 19, Fusarium culmorum 44, F. oxysporum f. sp. glycines 37, F. oxysporum f. sp. phaseoli 51, F. oxysporum f. sp. pisi 33, Fusarium solani 25, Phoma exigua var. exigua 11, Pythium irregulare 34, Rhizoctonia solani 64, Sclerotinia sclerotiorum 15) and bio-preparations, i. e. Biosept 33 SL, Biochikol 020 PC, Polyversum as well as Zaprawa Oxafun T. The studies were conducted in in vitro conditions, considering 6 repetitions (dishes) for each experimental combinations. After 10 days the diameter of the fungus colonies’ growth was measured and morphological changes in the appearance of fungi cultures were observed. Addition of a medium of bio-preparations and Zaprawa Oxafun T caused inhibition of the growth and development of pathogenic fungi. The most effective preparation which inhibited the growth of the colonies was Biosept 33 SL. Biopreparations as well as Zaprawa Oxafun T caused inhibition of the formation of air mycelium, sporules and sclerotia.
The study evaluated the effect of inoculation with Hebeloma crustuliniforme and application of Biochikol 020 PC to the soil in three doses (single, double and triple) on the growth of Scots pine in the nursery and plantation. Both treatments stimulated the growth of seedlings. The effect of Biochikol was found only in the nursery irrespective of the used doses of the preparation. The effect of mycorrhization on pine growth was stronger compared to the application of Biochikol both in the nursery and plantation.