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 method for modulating pest infestation in a plant comprising applying to the plant and/or seeds thereof and/or substrate used for growing said plant a composition comprising:
(a) a whole cell broth, supernatant, filtrate, extract, or cell fraction of Bacillus megaterium strain H491 (NRRL Accession No. B-50769) fermentation; and
(b) at least one of a carrier, diluent, surfactant, or adjuvant;
in an amount effective to modulate said pest infestation, wherein the whole cell broth, supernatant, filtrate, extract, or cell fraction of Bacillus megaterium strain H491 (NRRL Accession No. B-50769) fermentation comprises 4-phenylbutanoic acid.
2. The method of claim 1 , wherein said composition further comprising a chemical or biological pesticide, and optionally at least one of a carrier, diluent, surfactant, or adjuvant.
3. The method of claim 2 , wherein said chemical or biological pesticide is selected from the group consisting of a nematicide, a fungicide and an insecticide.
4. The method of claim 1 , wherein said plant is selected from the group consisting of strawberry, squash, cucumber, tomato, rose, pepper eggplant, grapevine, cotton, onion, garlic, wheat, soy, corn and rice.
5. The method of claim 1 , further comprising transplanting said plant into said growth substrate.
6. The method of claim 5 , wherein prior to transplanting said plant into said growth substrate, one or more roots of said plant are treated with said composition.
7. 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 a composition comprising:
(a) a whole cell broth, supernatant, filtrate, extract, or cell fraction of Bacillus megaterium strain H491 (NRRL Accession No. B-50769) fermentation; and
(b) at least one of a carrier, diluent, surfactant, or adjuvant;
in an amount effective to modulate said growth of said plant and/or germination of said seed, wherein the whole cell broth, supernatant, filtrate, extract, or cell fraction of Bacillus megaterium strain H491 (NRRL Accession No. B-50769) fermentation comprises 4-phenylbutanoic acid.
8. The method according to claim 7 , wherein said plant is selected from the group consisting of strawberry, squash, cucumber, tomato, rose, pepper eggplant, grapevine, cotton, onion, garlic, wheat, soy, corn and rice.
9. The method according to claim 7 , further comprising transplanting said plant into said growth substrate.
10. The method according to claim 9 , wherein prior to transplanting said plant into said growth substrate, one or more roots of said plant are treated with said composition.
11. The method of claim 7 , wherein the composition further comprising a plant growth promotion agent.