Provided are bioactive compositions and metabolites derived from Bacillus and particularly Bacillus megaterium cultures responsible for controlling pests as well as their methods of use for controlling pests. Further provided are pesticidal Bacillus megaterium strains.
1. A composition comprising
(a) whole cell broth collected from Bacillus megaterium H491 (NRRL Accession No. B-50769) fermentation which has pesticidal activity; and
(b) at least one of a carrier, diluent, surfactant, or adjuvant.
2. The composition according to claim 1 , further comprising a pesticide selected from the group consisting of a nematicide, a fungicide and an insecticide.
3. The composition according to claim 1 , wherein said strain of Bacillus megaterium H491 (NRRL Accession No. B-50769) produces a pesticidal compound comprising 4-phenylbutanoic acid.
4. The composition according to claim 1 , wherein said strain of Bacillus megaterium H491 (NRRL Accession No. B-50769) is non-pathogenic to vertebrate animals.
5. The composition according to claim 1 , wherein said strain of Bacillus megaterium H491 (NRRL Accession No. B-50769) is susceptible to tetracycline.
6. The composition according to claim 1 , wherein said strain of Bacillus megaterium H491 (NRRL Accession No. B-50769) is present in a formulation selected from the group consisting of an emulsifiable concentrate, a wettable powder, a soluble liquid, an aerosol, an ultra-low volume concentrate solution, a soluble powder, a microencapsulate, water-dispersed granules, a flowable, a micro emulsion and a nano-emulsion.
7. A method for modulating pest infestation in a plant, the method comprising applying to the plant and/or seeds thereof and/or substrate used for growing said plant an amount of the composition of claim 1 effective to modulate said pest infestation.
8. A method for isolating a compound comprising 4-phenylbutanoic acid which has pesticidal properties, wherein the method comprises the steps of:
(a) culturing a Bacillus megaterium H 491 (NRRL Accession No. B-50769) strain in a cell broth for a time and at a temperature sufficient to produce 4-phenylbutanoic acid; and
(b) isolating said 4-phenylbutanoic produced in said whole cell broth.
9. A seed comprising the composition of claim 1 , which has pesticidal properties.
10. A method for modulating (i) growth of a plant, and/or (ii) germination of a seed of said plant, the method comprising contacting said plant and/or its seed and/or its growth substrate with
the composition of claim 1 ;
in an amount effective to modulate said growth of said plant and/or germination of said seed.
11. The method according to claim 10 , wherein said plant is selected from the group consisting of strawberry, squash, cucumber, tomato, rose, pepper eggplant, grapevine, cotton, onion, garlic, wheat, soy, com and rice.
12. The method according to claim 10 , further comprising transplanting said plant into said growth substrate.
13. The method according to claim 12 , wherein prior to transplanting said plant into said growth substrate, one or more roots of said plant are treated with said composition of claim 1 .