Herbicidal compositions comprising 2,4-D

Abstract

The present invention relates to a method for post-emergent weed control, which comprises applying an effective amount of a composition comprising herbicide A (component A), 2,4-D (component B) and optionally herbicide C (component C) to emerged weeds, or an area, where weeds are growing.

Claims

1. A composition comprising A) herbicide A-1: ethyl 2-[2-[[3-chloro-5-fluoro-6-[3-methyl-2,6-dioxo-4-(trifluoromethyl)pyrimidin-1-yl]-2-pyridyl]oxy]phenoxy]acetate; B) herbicide B: 2,4-D or an agriculturally acceptable salt or ester thereof; and C) optionally at least one herbicide C selected from the group consisting of saflufenacil, trifludimoxazin, and glufosinate-P-ammonium; wherein the weight ratio of herbicide A-1 to herbicide B is from 1:40 to 1:85.

2. The composition of claim 1, wherein herbicide B is selected from the group consisting of 2,4-D, 2,4-D dimethylammonium, and 2,4-D choline.

3. The composition of claim 1, wherein the composition comprises at least one herbicide C and the at least one herbicide C is saflufenacil.

4. The composition of claim 2, wherein the composition comprises at least one herbicide C and the at least one herbicide C is trifludimoxazin.

5. The composition of claim 2, wherein the composition comprises at least one herbicide C and the at least one herbicide C is glufosinate-P-ammonium.

6. The composition of claim 3, wherein herbicide B is 2,4-D dimethylammonium.

7. The composition of claim 3, wherein herbicide B is 2,4-D choline.

8. The composition of claim 4, wherein herbicide B is 2,4-D dimethylammonium.

9. The composition of claim 4, wherein herbicide B is 2,4-D choline.

10. The composition of claim 5, wherein herbicide B is 2,4-D dimethylammonium.

11. The composition of claim 5, wherein herbicide B is 2,4-D choline.

12. The composition of claim 1, wherein the composition comprises at least one herbicide C and wherein the weight ratio of herbicide A-1 to herbicide C is from 1:16 to 1:62.

13. The composition of claim 1, wherein the weight ratio of herbicide A-1 to herbicide B is from 1:40 to 1:43.

14. The composition of claim 1, wherein the weight ratio of herbicide A-1 to herbicide B is from 1:55 to 1:85.

15. A method for post-emergent weed control, comprising applying an effective amount of a composition comprising A) herbicide A-1: ethyl 2-[2-[[3-chloro-5-fluoro-6-[3-methyl-2,6-dioxo-4-(trifluoromethyl)pyrimidin-1-yl]-2-pyridyl]oxy]phenoxy]acetate; B) herbicide B: 2,4-D or an agriculturally acceptable salt or ester thereof; and C) at least one herbicide C selected from the group consisting of saflufenacil, trifludimoxazin, and glufosinate-P-ammonium; to an area where weeds are growing, wherein the weight ratio of herbicide A-1 to herbicide B is from 1:40 to 1:85, and wherein the method results in a synergistic effect of the composition in controlling the weeds.

16. The method of claim 15, wherein herbicide B is selected from the group consisting of 2,4-D, 2,4-D dimethylammonium, and 2,4-D choline.

17. The method of claim 15, wherein the at least one herbicide C is saflufenacil.

18. The method of claim 15, wherein the at least one herbicide C is trifludimoxazin.

19. The method of claim 15, wherein the at least one herbicide C is glufosinate-P-ammonium.

20. The method of claim 15, wherein the weight ratio of herbicide A-1 to herbicide C is from 1:16 to 1:62.

21. The method of claim 15, wherein the weight ratio of herbicide A-1 to herbicide B is from 1:40 to 1:43.

22. The method of claim 15, wherein the weight ratio of herbicide A-1 to herbicide B is from 1:55 to 1:85.

23. The method of claim 15, wherein herbicide A-1, herbicide B, and herbicide C are applied jointly.

24. The method of claim 15, wherein herbicide A-1 and herbicide C are formulated jointly, and herbicide B is formulated separately and applied jointly with herbicide A-1 and herbicide C.

25. The method of claim 15, wherein herbicide A-1 and, herbicide B are formulated jointly, and herbicide C is formulated separately and applied jointly with herbicide A-1 and herbicide B.

26. The method of claim 15, wherein the weeds are selected from the families of Commelinaceae, Cyperaceae and Poaceae.

27. The method of claim 15, wherein herbicide A-1, herbicide B, and herbicide C are applied to crop plants which have been rendered tolerant to PPO-inhibiting herbicides. Herbicidal compositions comprising 2,4-D

Description

EXAMPLES

[0706] In the examples below, using the method of S. R. Colby (1967) Calculating synergistic and antagonistic responses of herbicide combinations, Weeds 15, p. 22 ff., the value E, which is expected if the activity of the individual active compounds is only additive, was calculated:

[00001]$E=X+Y-\left(X.Math.Y/100\right)$ [0707] where [0708] X=percent activity using active herbicide A at an application rate a; [0709] Y=percent activity using active herbicide B (e.g. 2,4-D) at an application rate b; [0710] E=expected activity (in %) by A+B at application rates a+b.

[0711] For 3-component mixtures the synergistic response was calculated as described in: Ferry, Nancy; Stanley, Bruce H.; and Armel, Gregory (2005). DESIGN AND ANALYSIS OF BIOLOGICAL ASSAYS OF MIXTURES, Conference on Applied Statistics in Agriculture. doi.org/10.4148/2475-7772.1133. According to this publication, the Colby calculation can be generalized to a third mixing partner, Z, employing the following formula:

[00002]$E=X+Y+Z-\left(X.Math.Y+X.Math.Z+Y.Math.Z\right)/100+\left(X.Math.Y.Math.Z\right)/10000.$

[0712] If the value found experimentally is higher than the value E calculated according to Colby, a synergistic effect is present.

[0713] The following herbicides have been tested:

TABLE-US-00006 herbicide # in examples below herbicide A-1 A-1 2,4-D choline B-5 glyphosate potassium C-10 glufosinate ammonium C-11

[0714] The plants used in the experiments were of the following species:

TABLE-US-00007 EPPO code Scientific name AMAPA Amaranthus palmeri AMARE Amaranthus retroflexus AMATU Amaranthus tuberculatos CYPES Cyperus esculentus DATST Datura stramonium DIGSA Digitaria sanguinalis ECHCG Echinochloa crus-galli GLXMA Glycine max HORVW Barley (winter) SETVE Setaria verticillata SETVI Setaria viridis ZEAMX Zea mays

[0715] The results of these tests are given below in the examples and demonstrate the synergistic effect of the composition comprising herbicide A, 2,4-D and optionally herbicide C, when applied post-emergent to weeds.

[0716] In this context, a.i. means active ingredient, based on 100% active substance.

Example APost-Emergence Application in Field Trials

[0717] On field test sites, natural weed infestation or seeded weeds were treated post-emergence of the weeds.

[0718] In the field trials, the weeds were treated as indicated below.

[0719] In the following experiments, the herbicidal activity for the individual herbicidal compositions (solo and mixture applications) was assessed at the indicated days after treatment (DAT). The assessments for the damage on undesired weeds caused by the composition was carried out using a scale from 0 to 100%, compared to the untreated control plants. Here, 0 means no damage and 100 means complete destruction of the plants.

Example 1

Post-Emergence Application of Herbicide A-1 (A-1) and 2,4-D Choline Salt (B-5) in Field Trials

[0720] Herbicide A-1 (342 g/l) and 2,4-D choline (456 g/l) were, together with addition of 1 v/v % MSO (methylated seed oil) and 2.5 v/v % AMS (ammonium sulfate) as adjuvant, formulated in water as distribution medium as indicated and sprayed with commercial flat fan nozzles.

TABLE-US-00008 TABLE 1.1 Evaluation 8 DAT, water volume 140 l/ha expected growth height g ai/ha total % herbicidal activity activity weed stage [cm] A-1 B-5 A-1 B-5 A-1 + B-5 (Colby) AMARE 19 10-20 25 1066 88 83 100 98 AMATU 19 10-20 12.5 1066 88 83 100 98

TABLE-US-00009 TABLE 1.2 Evaluation 8 DAT, water volume 140 l/ha expected height g ai/ha total % herbicidal activity activity weed [cm] A-1 B-5 A-1 B-5 A-1 + B-5 (Colby) PORPI 2-8 25 1066 90 50 97 95

TABLE-US-00010 TABLE 1.3 Evaluation 13 DAT, water volume 187 l/ha expected growth height g ai/ha total % herbicidal activity activity weed stage [cm] A-1 B-5 A-1 B-5 A-1 + B-5 (Colby) AMAPA 16 15-25 25 1066 58 53 92 80

TABLE-US-00011 TABLE 1.4 Evaluation 14 DAT, water volume 140 l/ha expected height g ai/ha total % herbicidal activity activity weed [cm] A-1 B-5 A-1 B-5 A-1 + B-5 (Colby) DIGSA 2-8 12.5 1066 33 0 82 33 DIGSA 2-8 25 1066 33 0 83 33 DIGSA 2-8 50 1066 65 0 97 65

TABLE-US-00012 TABLE 1.5 Evaluation 19 DAT, water volume 187 l/ha expected growth height g ai/ha total % herbicidal activity activity weed stage [cm] A-1 B-5 A-1 B-5 A-1 + B-5 (Colby) AMAPA 16 15-25 12.5 1066 40 55 78 73 AMAPA 16 15-25 25 1066 42 55 87 74 AMAPA 16 15-25 50 1066 52 55 88 78

TABLE-US-00013 TABLE 1.6 Evaluation 21 DAT, water volume 140 l/ha expected height g ai/ha total % herbicidal activity activity weed [cm] A-1 B-5 A-1 B-5 A-1 + B-5 (Colby) CYPES 50 1066 42 0 70 42 DIGSA 2-8 12.5 1066 27 0 78 27 DIGSA 2-8 25 1066 28 0 78 28 DIGSA 2-8 50 1066 55 0 96 55

TABLE-US-00014 TABLE 1.7 Evaluation 21 DAT, water volume 140 l/ha expected growth height g ai/ha total % herbicidal activity activity weed stage [cm] A-1 B-5 A-1 B-5 A-1 + B-5 (Colby) AMAPA 12-28 7-20 12.5 1066 89 63 98 96

TABLE-US-00015 TABLE 1.8 Evaluation 21 DAT, water volume 140 l/ha expected height g ai/ha total % herbicidal activity activity weed [cm] A-1 B-5 A-1 B-5 A-1 + B-5 (Colby) AMAPA 5-23 50 1066 74 78 96 94

[0721] The results of the field trials as shown in example 1 (tables 1.1 to 1.8) demonstrate that the application of a composition comprising herbicide A (esp. A-1) and 2,4-D (esp. B-5), when applied post-emergent, leads to a better herbicidal activity against (emerged) weeds, than would have been expected based on the herbicidal activity observed for the individual compounds.

Example 2

Post-Emergence Application of Herbicide A-1 (A-1), 2,4-D Choline (B-5) and Glyphosate Potassium (C-10) in Field Trials

[0722] Herbicide A-1 (342 g), 2,4-D choline (456 g/l) and glyphosate potassium (575 g/l) were, together with addition of 1 v/v % MSO (methylated seed oil) and 2.5 v/v % AMS (ammonium sulfate) as adjuvant, formulated in water as distribution medium as indicated and sprayed with commercial flat fan nozzles.

TABLE-US-00016 TABLE 2.1 Evaluation 13 DAT, water volume 187 l/ha % Herbicidal activity expected Growth Height g ai/ha total A-1 + B-5 + activity Weed stage [cm] A-1 B-5 C-10 A-1 B-5 C-10 C-10 (Colby)* ECHCG 21-26 15-30 12.5 1066 840 23 0 90 94 92 ECHCG 21-26 15-30 25 1066 840 20 0 90 95 92 ECHCG 21-26 15-30 50 1066 840 23 0 90 95 92 *Colby calculated as (A + B + C) {[(A*B) + (A*C) + (B*C)]/100} + [(A*B*C)/10000]

TABLE-US-00017 TABLE 2.2 Evaluation 14 DAT, water volume 140 l/ha % Herbicidal activity expected Growth Height g ai/ha total A-1 + B-5 + activity Weed stage [cm] A-1 B-5 C-10 A-1 B-5 C-10 C-10 (Colby)* AMAPA 12-24 5-30 12.5 1066 840 73 66 22 97 93 AMAPA 12-24 5-30 25 1066 840 82 66 22 99 95 *Colby calculated as (A + B + C) {[(A*B) + (A*C) + (B*C)]/100} + [(A*B*C)/10000]

TABLE-US-00018 TABLE 2.3 Evaluation 15 DAT, water volume 140 l/ha % Herbicidal activity expected Growth Height g ai/ha total A-1 + B-5 + activity Weed stage [cm] A-1 B-5 C-10 A-1 B-5 C-10 C-10 (Colby)* DIGSA 13-19 2-13 12.5 1066 840 68 27 93 100 98 SETVI 13-19 2-18 12.5 1066 840 68 27 93 100 98 *Colby calculated as (A + B + C) {[(A*B) + (A*C) + (B*C)]/100} + [(A*B*C)/10000]

[0723] The results of the field trials as shown in example 2 (tables 2.1 to 2.3) demonstrate that the application of a composition comprising herbicide A (esp. A-1), 2,4-D (esp. B-5) and glyphosate (esp. C-10), when applied post-emergent, leads to a better herbicidal activity against (emerged) weeds, than would have been expected based on the herbicidal activity observed for the individual compounds.

Example 3

Post-Emergence Application of Herbicide A-1 (A-1), 2,4-D Choline (B-5) and Glufosinate Ammonium (C-11) in Field Trials

[0724] Herbicide A-1 (342 g/l), 2,4-D choline (456 g/l) and glufosinate ammonium (280 g/l) were, together with addition of 1 v/v % MSO (methylated seed oil) and 2.9 v/v AMS (ammonium sulfate) as adjuvant, formulated in water as distribution medium as indicated and sprayed with commercial flat fan nozzles.

TABLE-US-00019 TABLE 3.1 Evaluation 21 DAT, water volume 140 l/ha % Herbicidal activity expected g ai/ha total A-1 + B-5 + activity Weed A-1 B-5 C-11 A-1 B-5 C-11 C-11 (Colby)* CYPES 12.5 1066 655 20 0 18 70 35 CYPES 50 1066 655 42 0 18 73 52 *Colby calculated as (A + B + C) {[(A*B) + (A*C) + (B*C)]/100} + [(A*B*C)/10000]

TABLE-US-00020 TABLE 3.2 Evaluation 21 DAT, water volume 140 l/ha % Herbicidal activity expected Height g ai/ha total A-1 + B-5 + activity Weed [cm] A-1 B-5 C-11 A-1 B-5 C-11 C-11 (Colby)* DIGSA 2-8 12.5 1066 655 27 0 49 82 63 DIGSA 2-8 25 1066 655 28 0 49 78 64 DIGSA 2-8 50 1066 655 55 0 49 93 77 *Colby calculated as (A + B + C) {[(A*B) + (A*C) + (B*C)]/100} + [(A*B*C)/10000]

[0725] The results of the field trials as shown in example 3 (tables 3.1 and 3.2) demonstrate that the application of a composition comprising herbicide A (esp. A-1), 2,4-D (esp. B-5) and glufosinate (esp. C-11), when applied post-emergent, leads to a better herbicidal activity against (emerged) weeds, than would have been expected based on the herbicidal activity observed for the individual compounds.

Example 4

Post-Emergence Application of Herbicide A-1 (A-1) and 2,4-D Choline Salt (B-5) in Field Trials

[0726] Herbicide A-1 (342 g/l) and 2,4-D choline (456 g/l) were, together with addition of 0.25 v/v % MSO (methylated seed oil) as adjuvant, formulated in 200 l/ha water as distribution medium and sprayed with commercial flat fan nozzles.

TABLE-US-00021 TABLE 4.1 Evaluation 7 DAT % herbicidal expected growth height g ai/ha total activity activity weed stage [cm] A-1 B-5 A-1 B-5 A-1 + B-5 (Colby) DATST 12.5 1066 90 35 98 94 ZEAMX 15-16 50-60 18 1066 85 7 90 86

TABLE-US-00022 TABLE 4.2 Evaluation 21 DAT % herbicidal g ai/ha activity expected growth height total A-1 + activity weed stage [cm] A-1 B-5 A-1 B-5 B-5 (Colby) ECHCG 23-30 15-20 12.5 1066 30 0 75 30 SETVE 21-23 8-16 12.5 1066 65 25 90 74 HORVW 23-29 20-25 12.5 1066 60 0 97 60 ZEAMX 15-16 50-60 12.5 1066 80 10 94 82 GLXMA 13 5-8 12.5 1066 90 55 100 96

[0727] The results of the field trials as shown in example 4 (tables 4.1 and 4.2) demonstrate that the application of a composition comprising herbicide A (esp. A-1) and 2,4-D (esp. B-5), when applied post-emergent, leads to a better herbicidal activity against (emerged) weeds, than would have been expected based on the herbicidal activity observed for the individual compounds.

Example 5

[0728] Post-emergence application of Herbicide A-1 (A-1) and 2,4-D dimethylammonium salt (B-4) in Field Trials Herbicide A-1 (342 g/l) and 2,4-D dimethylammonium (500 g/l) were, together with addition of 0.25 v/v % MSO (methylated seed oil) as adjuvant, formulated in 200 l/ha water as distribution medium and sprayed with commercial flat fan nozzles.

TABLE-US-00023 TABLE 5.1 Evaluation 7 DAT % herbicidal expected growth height g ai/ha total activity activity weed stage [cm] A-1 B-4 A-1 B-4 A-1 + B-4 (Colby) HORVW 23-29 20-25 12.5 1066 60 0 80 60

TABLE-US-00024 TABLE 5.2 Evaluation 21 DAT % herbicidal expected growth height g ai/ha total activity activity weed stage [cm] A-1 B-4 A-1 B-4 A-1 + B-4 (Colby) ZEAMX 15-16 50-60 12.5 1066 70 0 90 70

[0729] The results of the field trials as shown in example 5 (tables 5.1 and 5.2) demonstrate that the application of a composition comprising herbicide A (esp. A-1) and 2,4-D (esp. B-4), when applied post-emergent, leads to a better herbicidal activity against (emerged) weeds, than would have been expected based on the herbicidal activity observed for the individual compounds.

Example 6

Post-Emergence Application of Herbicide A-1 (A-1), 2,4-D Choline (B-5) and Glufosinate Ammonium (C-11) in Field Trials

[0730] Herbicide A-1 (342 g/l), 2,4-D choline (456 g/l) and glufosinate ammonium (280 g/l) were, together with addition of 0.25 v/v % MSO (methylated seed oil) as adjuvant, formulated in 200 l/ha water as distribution medium and sprayed with commercial flat fan nozzles.

TABLE-US-00025 TABLE 6.1 Evaluation 7 DAT % Herbicidal activity expected Growth Height g ai/ha total A-1 + B-5 + activity Weed stage [cm] A-1 B-5 C-11 A-1 B-5 C-11 C-11 (Colby)* DIGSA 21-22 15-20 12.5 1066 400 35 20 25 93 61 ECHCG 23-30 15-20 12.5 1066 400 20 0 30 85 44 SETVE 21-23 10-15 12.5 1066 400 75 15 55 95 90 ZEAMX 15-16 25-30 12.5 1066 400 40 0 40 80 64 *Colby calculated as (A + B + C) {[(A*B) + (A*C) + (B*C)]/100} + [(A*B*C)/10000]

TABLE-US-00026 TABLE 6.2 Evaluation 21 DAT % Herbicidal activity expected Growth Height g ai/ha total A-1 + B-5 + activity Weed stage [cm] A-1 B-5 C-11 A-1 B-5 C-11 C-11 (Colby) DIGSA 21-22 15-20 12.5 1066 400 35 20 20 90 58 SETVE 21-23 10-15 12.5 1066 400 55 0 40 80 73 DATST 12.5 1066 400 90 40 50 98 97

TABLE-US-00027 TABLE 6.3 Evaluation 28 DAT % Herbicidal activity expected Growth Height g ai/ha total A-1 + B-5 + activity Weed stage [cm] A-1 B-5 C-11 A-1 B-5 C-11 C-11 (Colby) ECHCG 23-30 15-20 12.5 1066 400 20 0 70 85 76 HORVW 23-29 20-25 12.5 1066 400 60 0 30 99 72 ZEAMX 15-16 50-60 12.5 1066 400 85 0 70 100 96

[0731] The results of the field trials as shown in example 6 (tables 6.1, 6.2 and 6.3) demonstrate that the application of a composition comprising herbicide A (esp. A-1), 2,4-D (esp. B-5) and glufosinate (esp. C-11), when applied post-emergent, leads to a better herbicidal activity against (emerged) weeds, than would have been expected based on the herbicidal activity observed for the individual compounds.

Example 7

Post-Emergence Application of Herbicide A-1 (A-1), 2,4-D Dimethylammonium Salt (B-4) and Glufosinate Ammonium (C-11) in Field Trials

[0732] Herbicide A-1 (342 g/l), 2,4-D dimethylammonium (500 g/l) and glufosinate ammonium (280 g/l) were, together with addition of 0.25 v/v % MSO (methylated seed oil) as adjuvant, formulated in 200 l/ha water as distribution medium and sprayed with commercial flat fan nozzles.

TABLE-US-00028 TABLE 7.1 Evaluation 28 DAT % Herbicidal activity expected Growth Height g ai/ha total A-1 + B-4 + activity Weed stage [cm] A-1 B-4 C-11 A-1 B-4 C-11 C-11 (Colby) ECHCG 23-30 15-20 12.5 1066 400 20 0 60 92 68 HORVW 23-29 20-25 12.5 1066 400 90 0 10 99 91 ZEAMX 15-16 50-60 12.5 1066 400 50 0 40 97 70

[0733] The results of the field trials as shown in example 7 (table 7.1) demonstrate that the application of a composition comprising herbicide A (esp. A-1), 2,4-D (esp. B-4) and glufosinate (esp. C-11), when applied post-emergent, leads to a better herbicidal activity against (emerged) weeds, than would have been expected based on the herbicidal activity observed for the individual compounds.

Example 8

Post-Emergence Application of Herbicide A-1 (A-1), 2,4-D Choline (B-5) and Glufosinate-P Ammonium (C-12) in Field Trials

[0734] Herbicide A-1 (342 g/l), 2,4-D choline (456 g/l) and glufosinate-P-ammonium (211 g/l) were, together with addition of 0.25 v/v % MSO (methylated seed oil) as adjuvant, formulated in 200 l/ha water as distribution medium and sprayed with commercial flat fan nozzles.

TABLE-US-00029 TABLE 8.1 Evaluation 7 DAT % Herbicidal activity expected Growth Height g ai/ha total A-1 + B-5 + activity Weed stage [cm] A-1 B-5 C-12 A-1 B-5 C-12 C-12 (Colby) ECHCG 23-30 15-20 12.5 1066 252 20 0 50 90 60

TABLE-US-00030 TABLE 8.2 Evaluation 21 DAT % Herbicidal activity expected Growth Height g ai/ha total A-1 + B-5 + activity Weed stage [cm] A-1 B-5 C-12 A-1 B-5 C-12 C-12 (Colby) ECHCG 23-30 15-20 12.5 1066 252 30 0 70 95 79 HORVW 23-29 20-25 12.5 1066 252 80 0 20 99 84

TABLE-US-00031 TABLE 8.3 Evaluation 28 DAT % Herbicidal activity expected Growth Height g ai/ha total A-1 + B-5 + activity Weed stage [cm] A-1 B-5 C-12 A-1 B-5 C-12 C-12 (Colby) ECHCG 23-30 15-20 12.5 1066 252 20 0 60 94 68 ZEAMX 15-16 50-60 12.5 1066 252 85 0 70 100 96

[0735] The results of the field trials as shown in example 8 (tables 8.1, 8.2 and 8.3) demonstrate that the application of a composition comprising herbicide A (esp. A-1), 2,4-D (esp. B-5) and glufosinate-P (esp. C-12), when applied post-emergent, leads to a better herbicidal activity against (emerged) weeds, than would have been expected based on the herbicidal activity observed for the individual compounds.

Example 9

Post-Emergence Application of Herbicide A-1 (A-1), 2,4-D Dimethyl Ammonium Salt (B-4) and Glufosinate-P Ammonium (C-12) in Field Trials

[0736] Herbicide A-1 (342 g/l), 2,4-D dimethyl ammonium salt (500 g/l) and glufosinate-P-ammonium (211 g/l) were, together with addition of 0.25 v/v % MSO (methylated seed oil) as adjuvant, formulated in 200 l/ha water as distribution medium and sprayed with commercial flat fan nozzles.

TABLE-US-00032 TABLE 9.1 Evaluation 21 DAT % Herbicidal activity expected Growth Height g ai/ha total A-1 + B-4 + activity Weed stage [cm] A-1 B-4 C-12 A-1 B-4 C-12 C-12 (Colby) HORVW 23-29 20-25 12.5 1066 252 80 0 60 99 92

TABLE-US-00033 TABLE 9.2 Evaluation 28 DAT % Herbicidal activity expected Growth Height g ai/ha total A-1 + B-4 + activity Weed stage [cm] A-1 B-4 C-12 A-1 B-4 C-12 C-12 (Colby) ECHCG 23-30 15-20 12.5 1066 252 20 0 60 92 68 ZEAMX 15-16 50-60 12.5 1066 252 50 0 60 94 80

[0737] The results of the field trials as shown in example 9 (tables 9.1 and 9.2) demonstrate that the application of a composition comprising herbicide A (esp. A-1), 2,4-D (esp. B-4) and glufosinate-P (esp. C-12), when applied post-emergent, leads to a better herbicidal activity against (emerged) weeds, than would have been expected based on the herbicidal activity observed for the individual compounds.

Example 10

Post-Emergence Application of Herbicide A-1 (A-1), 2,4-D Choline (B-5) and Trifludimoxazin (C-4) in Field Trials

[0738] Herbicide A-1 (342 g/l), 2,4-D choline (456 g/l) and trifludimoxazin (500 g/l) were, together with addition of 0.25 v/v % MSO (methylated seed oil) as adjuvant, formulated in 2001l/ha water as distribution medium and sprayed with commercial flat fan nozzles.

TABLE-US-00034 TABLE 10.1 Evaluation 21 DAT % Herbicidal activity expected Growth Height g ai/ha total A-1 + B-5 + activity Weed stage [cm] A-1 B-5 C-4 A-1 B-5 C-4 C-4 (Colby) ECHCG 23-30 15-20 12.5 1066 12.5 30 0 30 80 51 HORVW 23-29 20-25 12.5 1066 12.5 80 0 30 99 86

[0739] The results of the field trials as shown in example 10 (table 10.1) demonstrate that the application of a composition comprising herbicide A (esp. A-1), 2,4-D (esp. B-5) and trifludimoxazin (C-4), when applied post-emergent, leads to a better herbicidal activity against (emerged) weeds, than would have been expected based on the herbicidal activity observed for the individual compounds.

Example 11

Post-Emergence Application of Herbicide A-1 (A-1), 2,4-D Dimethylammonium Salt (B-4) and Trifludimoxazin (C-4) in Field Trials

[0740] Herbicide A-1 (342 g/l), 2,4-D dimethylammonium salt (500 g/l) and trifludimoxazin (500 g/l) were, together with addition of 0.25 v/v % MSO (methylated seed oil) as adjuvant, formulated in 200 l/ha water as distribution medium and sprayed with commercial flat fan nozzles.

TABLE-US-00035 TABLE 11.1 Evaluation 21 DAT % Herbicidal activity expected Growth Height g ai/ha total A-1 + B-4 + activity Weed stage [cm] A-1 B-4 C-4 A-1 B-4 C-4 C-4 (Colby) HORVW 23-29 20-25 12.5 1066 12.5 80 0 20 97 84 ZEAMX 15-16 50-60 12.5 1066 12.5 70 0 30 85 79

[0741] The results of the field trials as shown in example 11 (table 11.1) demonstrate that the application of a composition comprising herbicide A (esp. A-1), 2,4-D (esp. B-4) and trifludimoxazin (C-4), when applied post-emergent, leads to a better herbicidal activity against (emerged) weeds, than would have been expected based on the herbicidal activity observed for the individual compounds.