Effect of Verticillium Dahliae On the Population of Pratylenchus Penetrans 1)

Abstract

Verticillium dahliae, added to a field soil heavily infested with Pratylenchus penetrans, increased the relative rate of reproduction of the nematode in the roots of eggplant and tomato, but not pepper. Reproduction of the nematode was higher in the roots of eggplant than in the roots of tomato, whereas in the roots of pepper reproduction was very limited. The ectoparasitic nematode Tylenchorhynchus capitatus was also present in the soil and its rate of reproduction increased on tomato roots with the fungus added. The reason for the increased rate of reproduction was not established.