ABSTRACT

Greenhouse experiments were conducted to determine plant health in the presence of T. basicola and R. reniformis when acting independently, sequentially or concomitantly. Coparasitism resulted in lower plant height and dry weight material compared to plants inoculated with only one pathogen or non-inoculated plants. For most measurements, prior inoculation with either pathogen did not predispose the plant to the other. Concomitant populations reduced plant vigor and health when inoculated at planting compared to inoculation at 14 days after planting.