Glyphosate herbicidal compositions having enhanced rainfastness comprising an acetylenic diol and an alkyl polyglycoside
First Claim
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1. A glyphosate-containing aqueous herbicidal solution having an improved rainfastness and comprising:
- a) a herbidically effective amount of glyphosate and/or glyphosate salt;
b) about 0.01 part to about 1 part of acetylenic diol having the following structural formula per part of glyphosate equivalent;
##STR10## wherein X in the acetylenic diol is (C2 H5 O)n --H and wherein n is the average number of repeating ethylene oxide units with n being a number of 1 to about 100, R is hydrogen or lower alkyl group containing 1 to about 8 carbon atoms and R1 is methyl, ethyl, cyclopropyl, or phenyl, said acetylenic diol imparting rainfastness to the solution;
c) about 0.01 part to about 1 part of an alkyl polyglycoside surfactant having the following molecular structure per part of glyphosate acid equivalent;
##STR11## wherein X in the alkyl polyglycoside glycoside is 1 to about 8 and n is in the range of 9-12, said alkyl polyglycoside stabilizing the solution; and
d) water.
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Abstract
New and useful herbicidal compositions comprising glyphosate and/or agriculturally acceptable salts and an acetylenic diol surfactant structurally characterized by a symmetrically substituted triple bond and adjacent hydroxyl groups or adjacent polymeric oxyalkylated units, and optionally a second surfactant, are provided.
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Citations
28 Claims
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1. A glyphosate-containing aqueous herbicidal solution having an improved rainfastness and comprising:
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a) a herbidically effective amount of glyphosate and/or glyphosate salt; b) about 0.01 part to about 1 part of acetylenic diol having the following structural formula per part of glyphosate equivalent;
##STR10## wherein X in the acetylenic diol is (C2 H5 O)n --H and wherein n is the average number of repeating ethylene oxide units with n being a number of 1 to about 100, R is hydrogen or lower alkyl group containing 1 to about 8 carbon atoms and R1 is methyl, ethyl, cyclopropyl, or phenyl, said acetylenic diol imparting rainfastness to the solution;c) about 0.01 part to about 1 part of an alkyl polyglycoside surfactant having the following molecular structure per part of glyphosate acid equivalent;
##STR11## wherein X in the alkyl polyglycoside glycoside is 1 to about 8 and n is in the range of 9-12, said alkyl polyglycoside stabilizing the solution; andd) water. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A glyphosate-containing concentrated herbicidal aqueous solution having an improved rainfastness and comprising:
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a) at least about 15 weight percent by total weight of the solution of glyphosate and/or glyphosate salt; b) about 0.01 part to about 1 part of acetylenic diol having the following structural formula per part of glyphosate equivalent;
##STR12## wherein X in the acetylenic diol is (C2 H5 O)n --H and wherein n is the average number of repeating ethylene oxide units with n being a number of 1 to about 100, K is hydrogen or lower alkyl group containing 1 to about 8 carbon atoms and R1 is methyl, ethyl, cyclopropyl, or phenyl, said acetylenic diol imparting rainfastness to the solution;about 0.01 part to about 1 part of alkyl polyglycoside having the following molecular structure per part of glyphosate acid equivalent;
##STR13## wherein X in the alkyl polyglycoside is 1 to about 8 and n is in the range 9-12, said alkyl polyglycoside stabilizing the solution; andd) water. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method of controlling vegetation by applying of an aqueous glyphosate-containing herbicidal solution having an improved rainfastness to foliage of plants, said method comprising the steps of:
a) intimately mixing the following ingredients to form the aqueous solution; 1. a herbicidally effective amount of glyphosate and/or glyphosate salt; 2. about 0.01 part to about 1 part of acetylenic diol having the following structural formula per part of glyphosate acid equivalent;
##STR14## wherein X in the acetylenic diol is (C2 H5 O )n --H and wherein n is the average number of repeating ethylene oxide units with n being a number of 1 to about 100, R is hydrogen or lower alkyl group containing 1 to about 8 carbon atoms and R1 is methyl, ethyl, cyclopropyl, or phenyl, said acetylenic diol imparting rainfastness to the solution;- View Dependent Claims (16)
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14. about 0.01 part to about 1 part of alkyl polyglycoside having the following molecular structure per part of glyphosate acid equivalent:
- ##STR15## wherein X in the alkyl polyglycoside is 1 to about 8 and n is in the range of 9-12, said alkyl polyglycoside stabilizing the solution; and
- View Dependent Claims (17, 18, 19, 20, 24, 25, 26, 27, 28)
- ##STR15## wherein X in the alkyl polyglycoside is 1 to about 8 and n is in the range of 9-12, said alkyl polyglycoside stabilizing the solution; and
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15. water;
b) applying the aqueous solution to foliage of plants, the applied aqueous solution having enhanced resistance to being removed from the plants by a subsequently applied gentle spray of water.
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21. A method of controlling vegetation by applying a diluted glyphosate-containing herbicidal solution having an improved rainfastness to foliage of plants, said method comprising the steps of:
a) intimately mixing the following ingredients to form the aqueous concentrated solution; 1. at least about 15 weight percent by total weight of the solution of glyphosate and/or glyphosate salt; 2. about 0.01 part to about 1 part of acetylenic diol having the following structural formula per part of glyphosate acid equivalent;
##STR16## wherein X in the acetylenic diol is (C2 H5 O)n --H and wherein n is the average number of repeating ethylene oxide units with n being a number of 1 to about 100, R is hydrogen or lower alkyl group containing 1 to about 8 carbon atoms and R1 is methyl, ethyl, cyclopropyl, or phenyl, said acetylenic diol imparting rainfastness to the solution;
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22. about 0.01 part to about 1 part of alkyl polyglycoside having the following molecular structure per part of glyphosate acid equivalent:
- ##STR17## wherein X in the alkyl polyglycoside is 1 to about 8 and n is the range of 9-12, said alkyl polyglycoside stabilizing the concentrated solution; and
- ##STR17## wherein X in the alkyl polyglycoside is 1 to about 8 and n is the range of 9-12, said alkyl polyglycoside stabilizing the concentrated solution; and
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23. water;
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b) diluting the concentrated solution with water to form a dilute solution; and
,c) applying the dilute solution to foliage of plants, the applied dilute solution having enhanced resistance to being removed from the plants by a subsequently applied gentle spray of water.
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Specification