The sampling area that gave the higher percentage of
isolates that could suppress the growth of F. oxysporum was
the rhizosphere of evergreen woody shrubs from an island
of the Aegean Sea but the strongest antifungal activity was
observed by streptomycetes derived from the rhizosphere of
Pinus brutia (Crete). The streptomycetes that were isolated
from the rhizosphere of evergreen woody shrubs from an
island of the Ionian Sea lacked any antifungal activity, whilst
very low numbers of potential biocontrol agents rose from
the rhizosphere of Ceratonia siliqua or the soil derived from
cultivated area (Marathon, Attica District).