Biological control of bacterial wilt in tomato through the metabolites produced by the biocontrol fungus, Trichoderma harzianum

Egyptian Journal of Biological Pest Control

Table 1 Effect of fungal metabolites on decrease in soil bacterial population of R. solanacearum

Application time (DBT)	Concentration (%)	Decrease in pathogen population
Application time (DBT)	Concentration (%)	Experiment I	Experiment II
0	0	0.671 ± 0.005 g	0.781 ± 0.007 h
	3	0.686 ± 0.003 g	0.836 ± 0.009 h
	6	0.866 ± 0.009 f	1.073 ± 0.004 fg
	9	1.193 ± 0.008 cd	1.276 ± 0.006 cd
3	0	0.686 ± 0.007 g	0.789 ± 0.003 h
	3	0.832 ± 0.004 f	0.973 ± 0.007 fgh
	6	1.092 ± 0.005 de	1.236 ± 0.005 de
	9	1.365 ± 0.009 b	1.398 ± 0.007 b
6	0	0.691 ± 0.007 g	0.797 ± 0.007 h
	3	0.963 ± 0.007 ef	1.196 ± 0.003 ef
	6	1.284 ± 0.004 bc	1.383 ± 0.006 bc
	9	1.526 ± 0.010 a	1.591 ± 0.009 a

Each value is a mean ± SD. Treatments having significant differences on the basis of LSD test have different lettering within a column. Both experiments I and II are the same repeated experiments without any modification. DBT days before transplantation