Fig. 6

a Histopathological interaction of T. harzianum and Phythium ultimum in cortex region of roots tissue of tomato plants (longitudinal section, 40 ×). b Histopathological interaction of T. harzianum and Phythium ultimum in vascular bundle of roots tissue of tomato plants (longitudinal section, 40 ×). c Histopathological interaction of Trichoderma harzianum and Phytopthora capsici in cortex region of roots tissue of tomato plants (longitudinal section, 40 ×). d Histopathological interaction of Trichoderma and Phytopthora capsici in vascular bundle of roots tissue of tomato plants (longitudinal section, 40 ×)