Modulation of release rate from microencapsulated pesticides
First Claim
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1. An aqueous herbicidal concentrate composition comprising:
- (a) a particulate microencapsulated acetochlor dispersed in an aqueous liquid medium and comprising a water-immiscible core material comprising the acetochlor and a polyurea shell wall containing the core material, wherein the acetochlor concentration in the composition on an active ingredient basis is from about 20 wt. % to about 35 wt. %, and(b) a sodium or potassium salt of dicamba dissolved in the aqueous liquid medium, wherein the dicamba concentration in the composition on an acid equivalent basis is at least about 1 wt. %, wherein the weight ratio of acetochlor to dicamba (acid equivalent basis) is from about 1;
1 to about 30;
1.
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Abstract
Aqueous pesticidal mixtures comprising a microencapsulated pesticide and an agent that modulates the release rate of the pesticide from the microcapsules are described. Also described are various methods of modulating the release rate of a microencapsulated pesticide in a pesticidal mixture. Further, various pesticidal mixtures comprising a microencapsulated pesticide and a co-pesticide that provides for enhanced crop safety are described.
16 Citations
25 Claims
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1. An aqueous herbicidal concentrate composition comprising:
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(a) a particulate microencapsulated acetochlor dispersed in an aqueous liquid medium and comprising a water-immiscible core material comprising the acetochlor and a polyurea shell wall containing the core material, wherein the acetochlor concentration in the composition on an active ingredient basis is from about 20 wt. % to about 35 wt. %, and (b) a sodium or potassium salt of dicamba dissolved in the aqueous liquid medium, wherein the dicamba concentration in the composition on an acid equivalent basis is at least about 1 wt. %, wherein the weight ratio of acetochlor to dicamba (acid equivalent basis) is from about 1;
1 to about 30;
1. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification