3. Results
3.1. Effect of various concentrations of T. harzianum BI on nematode infection
Tomato plants from nematode J2-infested soils treated with fungus exhibited a significant reduction in disease level (number of galls per plant), number of egg masses per plant and number of eggs per individual egg mass (Fig. 1a–c), (P 005). There was significant reduction in number of eggs per egg mass in comparison to their controls in all concentrations. Concentrations more than 107 spores/ml exhibited no significant difference in all parameters in comparison to 106 spores/ml.