Biological control of plant diseases
View Patent ↗The present invention relates to the use of Ulocladium oudemansii as a biological control agent. Processes and compositions for the biological control of Botrytis species using Ulocladium oudemansii are also provided.
1. A biological control composition that comprises, in a reproductively viable form and amount, a biologically pure culture of Ulocladium oudemansii AGAL No. NM99/06216 effective against a Botrytis species and an agriculturally acceptable carrier, diluent or adjuvant.
2. The composition as claimed in claim 1 wherein the strain is present in the form of reproductively viable spores.
3. The composition as claimed in claim 2 wherein the spores are present in a concentration range of from about 1×10 2 to 1×10 7 spores per ml.
4. The composition as claimed in claim 2 wherein the spores are present in a concentration range of from about 1×10 3 to 2×10 6 spores per ml.
5. The composition as claimed in claim 4 wherein the spores are present in a concentration range of from about 1×10 4 to 2×10 6 spores per ml.
6. The composition as claimed in claim 1 which further comprises at least one further strain of Ulocladium oudemansii effective against a Botrytis species.
7. The composition as claimed in claim 1 wherein the Botrytis species is Botrytis cinerea.
8. The composition as claimed in claim 1 which further comprises a surfactant.
9. The composition as claimed in claim 8 wherein the surfactant is a polysorbate surfactant.
10. The composition as claimed in claim 8 wherein the surfactant is polyoxyethylenesorbitan monooleate.
11. A biologically pure culture of Ulocladium oudemansii AGAL No. NM99/06216.
12. The biological control composition as claimed in claim 1 , wherein the composition is in a sprayable, powder or liquid suspension form.