Herbicide combinations comprising glufosinate and trifludimoxazin

Abstract

The present invention relates to specific herbicide combinations comprising (i) L-glufosinate and/or salts thereof and (ii) trifludimoxazin in specific ratios, and to compositions comprising said herbicide combinations in these ratios. The present invention further relates to a method of producing said specific herbicide combinations and compositions comprising said specific herbicide combinations. The present invention also relates to the use of said specific herbicide combinations and compositions comprising said specific herbicide combinations in the field of agriculture, for controlling harmful plants or undesired plant growth, as well as to corresponding methods.

Claims

1. A herbicide combination comprising (i) glufosinate or L-glufosinate or an agronomically acceptable salt thereof, and (ii) trifludimoxazin, wherein a ratio by weight of a total amount of component (i) is at least 40 times more than the total amount of component (ii) in case of (i) being glufosinate, and is at least 20 times more than the total amount of component (ii) in case of (i) being L-glufosinate.

2. The herbicide combination according to claim 1, wherein a ratio by weight of the total amount of component (i) to the total amount of component (ii) is from 1000:1 to 50:1 in case of (i) being glufosinate.

3. The herbicide combination according to claim 2, wherein the ratio by weight of the total amount of component (i) to the total amount of component (ii) is from 500:1 to 60:1 in case of (i) being glufosinate.

4. The herbicide combination according to claim 1, wherein a ratio by weight of the total amount of component (i) to the total amount of component (ii) is from 500:1 to 25:1 in case of (i) being L-glufosinate.

5. The herbicide combination according to claim 4, wherein the ratio by weight of the total amount of component (i) to the total amount of component (ii) is from 250:1 to 30:1 in case of (i) being L-glufosinate.

6. A composition comprising the herbicide combination according to any of claims 1 to 5, wherein the total amount of component (i) is from 100 to 600 g/L, preferably the total amount of component (i) is from 150 g/L to 500 g/L, in each case based on the total amount of the composition.

7. The composition comprising the herbicide combination according to claim 6, wherein the total amount of component (ii) is in the range of from 0.15 to 15 g/L, in case of (i) being glufosinate, and in the range of from 0.2 to 30 g/L, in case of (i) being L-glufosinate, and in each case based on the total amount of the composition.

8. The composition comprising the herbicide combination according to claim 6, wherein the total amount of component (i) is in the range of from 100 to 600 g/L, and the total amount of component (ii) is in the range of from 0.15 to 15 g/L, in case of (i) being glufosinate, or the total amount of component (ii) is in the range of from 0.2 to 30 g/L, in case of (i) being L-glufosinate, and in each case based on the total amount of the mixture.

9. The composition comprising the herbicide combination according to claim 6 and one or more further components selected from the group consisting of formulation auxiliaries, additives customary in crop protection, and further agrochemically active compounds.

10. The composition according to claim 6, wherein the composition is in the form of a suspension concentrate (SC), oil dispersion (OD), or in form of microcapsules.

11. A method for producing a herbicide combination as defined in claim 1, comprising (a) providing component (i), (b) providing component (ii), and (c) combining component (i) and component (ii), such that the herbicide combination is obtained.

12. The method for controlling undesired plant growth, and/or controlling harmful plants, comprising applying a herbicide combination as defined in claim 1 onto the undesired plants or the harmful plants, on parts of the undesired plants or the harmful plants, or on the area where the undesired plants or the harmful plants grow.

13. The method for treating or protecting row crops from undesired plants or the harmful plants according to claim 12, wherein a herbicide combination according to claim 1 is applied, and wherein the total amount of component (i) is applied in the range of from 300 to 1000 g/ha, in case of (i) being glufosinate, or the total amount of component (i) is applied in the range of from 150 to 500 g/ha, in case of (i) being L-glufosinate, and the total amount of component (ii) is applied in the range of from 0.5 to 20 g/ha.

14. The method for treating or protecting specialty crops from undesired plants or the harmful plants according to claim 12, wherein a herbicide combination according to claim 1 is applied, and wherein the total amount of component (i) is applied in the range of from 300 to 6000 g/ha, in case of (i) being glufosinate, or the total amount of component (i) is applied in the range of from 150 to 3000 g/ha, in case of (i) being L-glufosinate, and the total amount of component (ii) is applied in the range of from 0.5 to 120 g/ha.

15. (canceled)

Description

EXAMPLE 1

[0259] Weed Control of Glufosinate Plus Trifludimoxazin Mixtures (Greenhouse) Seedlings of velvetleaf (Abutilon theophrasti; ABUTH) and Palmer amaranth (Amaranthus palmeri; AMAPA were treated with postemergence applications of either glufosinate at 246 g ai/ha, trifludimoxazin at 6.25 g ai/ha, or the combination of glufosinate (246 g ai/ha) and trifludimoxazin (6.25 g ai/ha), respectively, when they were 5-10 cm in height. All glufosinate treatments contained 1% (w/v) ammonium sulfate and solo trifludimoxazin treatments contained 1% (w/v) ammonium sulfate plus 1% (v/v) MSO surfactant. Plants were placed in a completely randomized design with four replications per treatment. Percent injury data was collected 21 days after treatment (DAT).

TABLE-US-00001 TABLE 1 Demonstration of glufosinate potentiation through the addition of trifludimoxazin for the control of Amaranthus Palmerii (AMAPA). Combined Solo (6.25 + 246 g ai/ha) Trifludi- Expected Applica- moxazin Glufosinate according Syner- tion (6.25 g ai/ha) (246 g ai/ha) Observed to Colby gism DAT % activity % activity % activity % activity Y/N 21 63 48 94 80 Y

TABLE-US-00002 TABLE 2 Demonstration of glufosinate potentiation through the addition of trifludimoxazin for the control of Abutilon theophrasti (ABUTH). Combined Solo (6.25 + 246 g ai/ha) Trifludi- Expected Applica- moxazin Glufosinate according Syner- tion (6.25 g ai/ha) (246 g ai/ha) Observed to Colby gism DAT % activity % activity % activity % activity Y/N 21 70 23 99 76 Y

[0260] As seen from the data in table 1 and table 2, the combination of glufosinate and trifludimoxazin provided enhanced control of AMAPA and ABUTH compared to the individual components. For each weed species, the observed control for the combination of glufosinate and trifludimoxazin was greater than the estimates of expected control based on the Colby equation, thus demonstrating the potentiating effect of the herbicide mixture.