Pre-emergent biological control agents

Setaria viridis Hordeum jubatumDigitaria sanguinalisLolium rigidumEchinochloa crusgalliSetaria glaucaLolium multiflorumEleusine indicaAvena fatuaThe present invention provides an isolated biocontrol agent, or a biocontrol composition, comprising, at least one Pseudomonas strain that exhibits weed suppressive activity. Preferably, the biocontrol composition comprises an acceptable medium such as a liquid culture medium, a solid culture medium, a seed coating, pesta, peat prill, vermiculite, clay, starch, wheat straw, or any combination thereof. The biocontrol agent or biocontrol composition may be used to suppress the growth of a weed. The weed may be selected from the group consisting of green foxtail ([L.] Beauv.), foxtail barley, crabgrass, annual ryegrass, barnyard grass, yellow foxtail, Italian rye grass, Goose grass, and wild oat. Furthermore, the biocontrol agent or composition may be applied to soil before, during or after planting crops in the soil.