Isolated bacterial strain of the genus
View Patent ↗A species of Burkholderia sp with no known pathogenicity to vertebrates but with pesticidal activity (e.g., plants, insects, fungi, weeds and nematodes) is provided. Also provided are natural products derived from a culture of said species and methods of controlling pests using said natural products.
1. A method for reducing emergence and/or growth of a monocotyledonous, sedge, or dicotyledonous weed comprising applying to said weed or soil a composition comprising an isolated Burkholderia strain A396 (NRRL Accession No. B-50319) in an amount effective to reduce said emergence and/or growth of the monocotyledonous, sedge, or dicotyledonous weed, wherein the composition is applied prior to emergence of said weed.
2. The method according to claim 1 , wherein said weed is selected from a grass weed, broadleaf weed, and sedge weed.
3. The method according to claim 2 , wherein said grass weed is selected from Digitaria sanguinalis, Echinochloa crus - galli , and Lolium perenne.
4. The method according to claim 2 , wherein said broadleaf weed is selected from Brassica kaber, Trifolium repens, Conyza canadensis, Amaranthus palmeri , and Convolvulus arvensis.
5. The method according to claim 2 , wherein said sedge is Cyperus difformis.
6. The method according to claim 1 , wherein the composition is a whole cell broth comprising the isolated Burkholderia strain A396.
7. The method of claim 6 , wherein the composition further comprises at least one of a carrier, diluent, surfactant, or adjuvant.
8. The method according to claim 1 , wherein the composition is a cell fraction, filtrate, supernatant, or extract of a whole cell broth comprising the isolated Burkholderia strain A396.
9. The method of claim 1 , wherein the emergence of the weed is prevented.
10. A method of reducing growth of a monocotyledonous, sedge, or dicotyledonous weed comprising applying to said weed or soil a composition comprising an isolated Burkholderia strain A396 (NRRL Accession No. B-50319) in an amount effective to reduce said growth of the monocotyledonous, sedge, or dicotyledonous weed, wherein the composition is applied after emergence of said weed.
11. The method according to claim 10 , wherein said weed is selected from a grass weed, broadleaf weed, and sedge weed.
12. The method according to claim 11 , wherein said grass weed is selected from Digitaria sanguinalis and Echinochloa crus - galli.
13. The method according to claim 11 , wherein said broadleaf weed is selected from Brassica kaber, Trifolium repens, Conyza canadensis, Amaranthus retroflexus, Ambrosia artemisifolia, Solanum nigrum, Medicago polymorpha, Taraxacum oficinale, Convolvulus arvensis, Chenopodium album, Rumex crispus, Malva spp., California burclovcr, Geranium dissectum , and Capsella bursapastora.
14. The method according to claim 11 , wherein said sedge is Cyperus difformis.
15. The method according to claim 10 , wherein the composition is a whole cell broth comprising the isolated Burkholderia strain A396.
16. The method of claim 15 , wherein the composition further comprises at least one of a carrier, diluent, surfactant, or adjuvant.
17. The method according to claim 10 , wherein the composition is a cell fraction, filtrate, supernatant, or extract of a whole cell broth comprising the isolated Burkholderia strain A396.
18. The method of claim 10 , wherein the weed is killed.