Biological control of Pectobacterium carotovorum subsp. carotovorum, the causal agent of bacterial soft rot in vegetables, in vitro and in vivo tests

Bulletin of the National Research Centre

Table 5 Inhibitory activity of biocontrol agents against incidence of bacterial soft rot disease on potato tubers when artificially inoculated in vivo tests

Biocontrol agents	Soft rot incidence (weight losses%) at weeks
Biocontrol agents	1	2	3	4	5	6	7	8	9	10	11	12
Bacterial agents
Bacillus subtilis	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	6.0	12.2	12.2
Bacillus pumilus	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
Bacillus megaterium	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	5.1	5.1	12.5	12.5
Pseudomonas fluorescens	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	4.5	4.5
Fungal agents
Trichoderma harzianum	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	8.0	21.9
Trichoderma viride	0.0	0.0	0.0	0.0	0.0	0.0	0.0	3.2	3.2	3.2	3.2	3.2
Trichoderma virens	0.0	0.0	0.0	0.0	0.0	0.0	0.0	3.2	3.2	3.2	3.2	3.2
Pathogen only
P. c. subsp. carotovorum only	5.5	16.4	43.7	50.7	83.0	83.0	83.0	83.0	83.0	83.0	83.0	83.0