Synergistic fungidical active substance combinations
View Patent ↗The present invention relates to novel active substance combinations which contain spiroxamine, which is known, a known azole and a known carboxamide and which are very suitable for controlling undesired phytopathogenic fungi.
1. A composition comprising
spiroxamine, (II-15) prothioconazole, and (III-23) N-(3′,4′-dichloro-5-fluoro-1,1′-biphenyl-2-yl)-3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxamide.
2. A method of controlling undesired phytopathogenic fungi comprising contacting said fungi with a composition according to claim 1 .
3. A method of controlling undesired phytopathogenic fungi comprising treating plant seed with a composition according to claim 1 .
4. A method of controlling undesired phytopathogenic fungi in transgenic plants comprising treating said plants with a composition according to claim 1 .
5. A method of controlling undesired phytopathogenic fungi in transgenic plant seed comprising treating said seed with a composition according to claim 1 .
6. Seed which has been treated with a composition according to claim 1 .
7. A method of controlling undesired phytopathogenic fungi, comprising applying a composition according to claim 1 to the undesired phytopathogenic fungi, their environment, seed, or a combination thereof.
8. A process for the preparation of fungicidal compositions, comprising mixing a composition according to claim 1 with extenders, surface-active substances, or mixtures thereof.
9. The composition according to claim 1 wherein the ratio of spiroxamine to prothioconazole is from 1:0.05 to 1:20.
10. The composition according to claim 9 wherein the ratio of spiroxamine to prothioconazole is from 1:0.1 to 1:10.
11. The composition according to claim 1 wherein the ratio of spiroxamine to N-(3′,4′-dichloro-5-fluoro-1,1′-biphenyl-2-yl)-3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxamide is from 1:0.02 to 1:50.
12. The composition according to claim 11 wherein the ratio of spiroxamine to N-(3′,4′-dichloro-5-fluoro-1,1′-biphenyl-2-yl)-3 -(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxamide is from 1:0.05 to 1:20.
13. The composition according to claim 12 wherein the ratio of spiroxamine to N-(3′,4′-dichloro-5-fluoro-1,1′-biphenyl-2-yl)-3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxamide is from 1:0.1 to 1:10.
14. The composition according to claim 1 wherein the ratio of spiroxamine to prothioconazole to N-(3′,4′-dichloro-5-fluoro-1,1′-biphenyl-2-yl)-3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxamide is 188:100:62.5.
15. The composition according to claim 1 which is synergistic.
16. The method according to claim 2 wherein the undesired phytopathogenic fungi are Pyrenophora species.
17. The method according to claim 16 wherein the Pyrenophora species is Pyrenophora teres .
18. The method according to claim 2 wherein the composition is applied at a rate of between 10 and 1000 g/ha.