This study aimed at testing for the disease-reducing effects against cucumber
anthracnose (Colletotrichum lagenarium) of the two antagonistic Bacillus sp. strains
STI2 và STIII1 under net house conditions. Two application methods were tested
including soil drenching and foliar spraying using 10⁸, 10⁶ and 10⁴ cells/mL bacterial
suspensions. The soil drenching application was done at one day before sowing, one
day after sowing and the combination of these two application time points. The foliar
spraying application was done at one day before pathogen inoculation, one day after
inoculation and their combination. Both bacterial strains showed significant effects
compared to that of the non-treated control where 10⁸ cells/mL suspensions showed better
effects among the suspensions tested. The combination of soil drenching applications at
one day before and after sowing showed the highest effects among those tested.