Agrochemical composition and dispersal method therefor
Provided are an agrochemical composition containing pyribencarb which has good blendability with an agrochemical composition containing etofenprox, and a method for spraying the composition. The agrochemical composition which contains pyribencarb (A) and a surfactant (B), characterized in that as the surfactant (B), a lignin sulfonic acid salt having purity of 85% by mass or more, wherein the content of reducing sugars is less than 5% by mass and the content of sugar sulfonic acids is less than 6% by mass (B1), and a monoalkylarylsulfonic acid salt formalin condensate and/or a polycarboxylic acid salt having mass average molecular weight of 5,000 to 50,000 (B2) are exclusively included; and the method for spraying the composition.
1. An agrochemical composition comprising:
a composition (i) comprising:
(A) pyribencarb, and
(B) a surfactant consisting of (B1) a lignin sulfonic acid salt having purity of 85% by mass or more, wherein a content of reducing sugars is less than 5% by mass and a content of sugar sulfonic acids is less than 6% by mass, and (B2) a monoalkylaryl sulfonic acid salt formalin condensate and/or a polycarboxylic acid salt having mass average molecular weight of 5,000 to 50,000, and
a composition (ii) comprising etofenprox.
2. The agrochemical composition according to claim 1 , wherein the monoalkylaryl sulfonic acid salt formalin condensate is a C1 to C4 alkylnaphthalene sulfonic acid salt formalin condensate.
3. The agrochemical composition according to claim 1 , wherein the compounding ratio of the (B) surfactant is present in 1% by mass or less based on the total amount of the composition.
4. The agrochemical composition according to claim 1 , wherein the composition (i) further comprises an antifoaming agent.
5. The agrochemical composition according to claim 4 , wherein the compounding ratio of the antifoaming agent is 0.01 to 0.5% by mass based on the total amount of the composition (i).
6. The agrochemical composition according claim 1 , wherein the composition (i) comprises no water-insoluble organic solvent.
7. The agrochemical composition according to claim 1 , wherein the composition (i) is an aqueous suspension preparation.
8. A method for spraying mixed agrochemicals, comprising diluting a mixture of the agrochemical composition according to claim 1 in water to obtain a mixed agrochemical spray solution, and spraying the mixed agrochemical spray solution onto agricultural land or non-agricultural land.
9. The method for spraying mixed agrochemicals according to claim 8 , wherein the spraying is an aerial spraying conducted from an aircraft.
10. A mixed agrochemical preparation, comprising a mixture of
a composition (i) comprising:
(A) pyribencarb, and
(B) a surfactant consisting of (B1) a lignin sulfonic acid salt having purity of 85% by mass or more, wherein a content of reducing sugars is less than 5% by mass and a content of sugar sulfonic acids is less than 6% by mass, and (B2) a monoalkylaryl sulfonic acid salt formalin condensate and/or a polycarboxylic acid salt having mass average molecular weight of 5,000 to 50,000, and
a composition (ii) comprising etofenprox,
wherein
the compounding ratio of the (B1) lignin sulfonic acid salt having purity of 85% by mass or more, wherein the content of the reducing sugars is less than 5% by mass and the content of the sugar sulfonic acids is less than 6% by mass, is 0.1 to 0.95% by mass; and
the compounding ratio of the (B2) monoalkylarylsulfonic acid salt formalin condensate and/or the polycarboxylic acid salt having mass average molecular weight of 5,000 to 50,000 is 0.05 to 0.5% by mass,
based on the total amount of the composition (i).