Regarding the
extracts, S. minor extract reached an inhibitory capacity compara-
ble to that of salts already at the lowest concentration (1), while
for O. crenata such result was obtained at higher concentrations
(4
in the
first year, 2
and 4
in the second year). An increase in
extract concentration produced an increase in the percentage of
inhibition, from 64 to 76% and from 79 to 89% for O. crenata and S.