The present invention is directed to isolated Paenibacillus macerans, Pseudomonas putida, and Sporbolomyces roseus which are useful as a biocontrol agent. These organisms are useful in a method of imparting to plants protection against plant pathogens by applying them to plants, plant seeds, or soil surrounding plants under conditions effective to impart disease protection to the plants or plants produced from the plant seeds. The biocontrol agents are also useful in a method of enhancing plant growth which involves applying them to plants, plants seeds, or soil surrounding plants under conditions effective to enhance growth in the plants or plants produced from the plant seeds.