Biological control is an efficient and environmentally friendly way to prevent damping-off disease. Many microbial species such as Trichoderma atroviride ( Reithner et al. 2007), Trichoderma harzianum ( Hadar et al. 1979), Pseudomonas fluorescens ( Nagarajkumar et al. 2004) and Bacillus subtilis ( Asaka and Shoda 1996) have been shown to effectively control R. solani. However, few reports have been published that document the ability of Bacillus pumilus (B. pumilus) to control damping-off disease.