| Abstract: Three experiments were conducted in a greenhouse to study the nematicidal activity of Bacillus subtilis, B. megaterium, B. pumilus and Pseudomonas fluorescens, Trichoderma harzianum, T.viride and T. vierns against nematode parameters of Meloidogyne incognita infecting sugar beet. Experiment I was conducted to test B. subtilis, B. megaterium, B. pumilus and P. fluorescens, T. harzianum , T. viride and T. vierns as single treatment. T. vierns highly reduced the galls number by 74%, followed by B. pumilus (73%), T. viride (73%), B. subtilis and T. harzianum (71%), B. megaterium (71%) and P. fluorescens (60%). Also, T. vierns caused the highest percentages reduction of egg-masses numbers (80%), followed by B. pumilus, T. harzianum and T. viride that... |
