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Herbicidal compositions containing N-phosphonomethyl glycine and an auxin herbicide

a technology of n-phosphonomethyl glycine and herbicide, which is applied in the field of herbicidal compositions or formulations, can solve the problems of slow translocation of glyphosate throughout the plant, inability to absorb glyphosate by the plant foliar tissue, etc., and achieve the effect of early visual symptoms of treatmen

Inactive Publication Date: 2006-01-26
MONSANTO TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007] There is a continuing need for herbicidal compositions which exhibit long-term control of unwanted plants and exhibit early visual symptoms of treatment. These compositions

Problems solved by technology

Although glyphosate is very effective in killing or controlling the growth of unwanted plants, the uptake (i.e., absorption) of glyphosate by the plant foliar tissue and translocation of glyphosate throughout the plant is relatively slow.

Method used

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  • Herbicidal compositions containing N-phosphonomethyl glycine and an auxin herbicide
  • Herbicidal compositions containing N-phosphonomethyl glycine and an auxin herbicide
  • Herbicidal compositions containing N-phosphonomethyl glycine and an auxin herbicide

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0112] The effect of glyphosate, 2,4-D, combinations of 2,4-D and glyphosate and combinations of all of the above with oxalic acid on velvetleaf was tested. Aqueous concentrate compositions were prepared containing potassium glyphosate salt, reported in g a.e. / liter, and excipient ingredients as shown in Table 1a. The 806DOT, 806E7S, 806F4Q and 806G3B formulations contained 62 grams acid equivalent per liter. Formulations 806A2D, 806B9H, 806C5Z, 806F4Q and 806G3B contained the IPA salt of 2,4-D measured in grams acid equivalent per liter.

TABLE 1aComp.Gly.2,4-DCmpnt. 2wt %Cmpnt. 3wt %Cmpnt. 4wt %806A2D—60.0——————806B9H—60.0CIS60.75NIS21.0——806C5Z—60.0CIS60.75NIS21.0OTH30.30806D0TK—CIS60.75NIS21.0——806E7SK—CIS60.75NIS21.0OTH30.30806F4QK 2.0CIS60.75NIS21.0—0.75806G3BK 2.0CIS60.75NIS21.0OTH30.30765K4SK—CIS59.0 NIS44.0CIS71.0 

[0113] The compositions of Table 1a and comparative compositions STD1 and STD2, were applied to velvetleaf (Abutilon theophrasti, ABUTH) plants. Results, averaged...

example 2

[0115] The effect of combinations of potassium glyphosate and 2,4-D with or without oxalic acid on velvetleaf was tested. Aqueous concentrate compositions were prepared containing potassium glyphosate salt, reported in g a.e. / liter, and excipient ingredients as shown in Table 2a. The 820A9T, 820C1Z, 820D6Q, 820E3F, 820F0G and 820H7D formulations contained 62 grams acid equivalent per liter. Formulation 820B4H contained the IPA salt of 2,4-D measured in grams acid equivalent per liter.

TABLE 2aComp.Gly.2,4-DCmpnt. 2wt %Cmpnt. 4wt %Cmpnt. 4wt %820A9TK—CIS60.75NIS21.00——820B4H—60.0 CIS60.75NIS21.00——820C1ZK2.0CIS60.75NIS21.00OTH30.30820D6QK2.0CIS60.75NIS21.00——820E3FK6.0CIS60.75NIS21.00OTH30.30820F0GK6.0CIS60.75NIS21.00——820G5JK4.0CIS60.75NIS21.00OTH30.60820H7DK6.0CIS60.75NIS21.00OTH30.60

[0116] The compositions of Table 2a and comparative compositions STD1 and STD2 were applied to velvetleaf (Abutilon theophrasti, ABUTH) plants. Results at 4 days after treatment (4DAT) and 14 days aft...

example 3

[0118] The effect of tank mixtures of NH4-oxalate with glyphosate package premix formulations of RT Master™ and Field Master™ on velvetleaf and barnyardgrass was tested. Aqueous tank mix compositions were prepared containing Roundup® UltraMax, RT Master™ and Field Master™ along with NH4-oxalate at three glyphosate a.e.:oxalate ratios (2:1, 10:1 and 30:1) these compositions and excipient ingredients are shown in Table 3a.

TABLE 3aGlyphosate2,4-DGly:OxalicComposition(g a.e. / L)(g a.e. / L)Acid RatioUltraMax 21445— 2:1UltraMax 101445—10:1UltraMax 301445—30:1RT Master 2136038.6 2:1RT Master 10136038.610:1RT Master 30136038.630:1Field Master 2168— 2:1Field Master 10168—10:1Field Master 30168—30:1

[0119] The compositions of Table 3a and comparative compositions STD1, STD2, RT Master™ and Field Master™ were applied to velvetleaf (Abutilon theophrasti, ABUTH) and Japanese millet (Echinochloa crus-galli var. frumentae, ECHCF) plants. Results at 5 days after treatment (5DAT) and 16 days after tr...

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Abstract

Herbicidal compositions are provided which cause rapid symptomology while delivering long term control of regrowth of plants. The herbicidal concentrate compositions comprise N-phosphonomethylglycine or a herbicidal derivative thereof, an auxin herbicide or a herbicidal derivative thereof, and at least one surfactant. Also provided is a method for killing or controlling the growth of certain plants by contacting the foliage of the plants with the diluted concentrate composition.

Description

REFERENCE TO RELATED APPLICATIONS [0001] This application claims the benefit of U.S. Provisional Application Ser. No. 60 / 552,065, filed Mar. 10, 2004, the entire contents of which are incorporated herein by reference.BACKGROUND [0002] The present invention relates generally to herbicidal compositions or formulations, and to methods of using such compositions to kill or control the growth and proliferation of unwanted plants. In particular, the present invention relates to herbicidal compositions, as well as their methods of use, which comprise N-phosphonomethylglycine (glyphosate), or a herbicidal derivative thereof, and an auxin herbicide, or a herbicidal derivative thereof, optionally with one or more suitable surfactants. Such compositions cause early visual symptoms of treatment and / or enhanced effectiveness or control when applied to the foliage of plants. [0003] Glyphosate is well known in the art as an effective post-emergent foliar-applied herbicide. In its acid form, glypho...

Claims

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Application Information

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IPC IPC(8): A01N57/00A01N57/20
CPCA01N57/20A01N25/30A01N37/38A01N37/40A01N2300/00A01N43/42A01N43/40A01N39/04A01N39/02
Inventor BECHER, DAVID Z.AGBAJE, HENRY E.TRAVERS, JEFFREY N.BRINKER, RONALD J.XU, XIAODONG C.OTTENS, TIMOTHY S.
Owner MONSANTO TECH LLC
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