Impact of Some Antagonistic Organisms in Controlling Meloidogyne Arenaria Infecting Tomato Plants

Effect of three isolates of Bacillus subtilis, two isolates of B. thuringiensis subsp. aegypti, three species of Trichoderma and the nematicide Furadan ® 10G, were evaluated on Meloidogyne arenaria infected tomato plants. Treatments with Furadan ® 10G, washed pellet of B. thuringiensis, sporulated bacterial cells of B. subtilis isolates and mixed Trichoderma filtrates caused (63.9-96.8%) inhibition on M. arenaria egg-hatching and J2 activity in the laboratory experiment and showed 66.2-98.4% reduction in nematode reproduction in the pot experiment. In the field experiment, the greatest reductions (70.0-99.8%) in the number of nematode root galls, egg-masses/plant and number of J2/250 cc soil and greatest increase (40.2-62.2%) in the dry weight of shoot and root systems were recorded with the treatments of Furadan ® 10G, mixed filtrates of the