Agrochemical composition and dispersal method therefor

Abstract

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.

Claims

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).

Description

EXAMPLES

(1) The present invention will be described in detail in Examples. The present invention is not intended to be limited to these Examples. In the following Examples, parts mean parts by mass.

Example 1

(2) Pyribencarb (18.8 parts), calcium lignin sulfonate having purity of 92% by mass (containing 3% by mass of reducing sugars, 4% by mass of sugar sulfonic acids, 1% by mass of inorganic salts as impurities, 0.63 parts), sodium butylnaphthalenesulfonate formalin condensate (0.25 parts) polyalkyl polysiloxane (0.1 parts), propylene glycol (10 parts), xanthan gum (0.28 parts) and water (69.94 parts) were mixed and wet-pulverized to prepare an agrochemical composition (aqueous suspension preparation) of the present invention containing 18.8% by mass of pyribencarb.

Example 2

(3) Pyribencarb (18.8 parts), calcium lignin sulfonate having purity of 92% by mass (containing 3% by mass of reducing sugars, 4% by mass of sugar sulfonic acids, 1% by mass of inorganic salts as impurities, 0.63 parts), sodium butylnaphthalenesulfonate formalin condensate (0.25 parts), polyalkyl polysiloxane (0.1 parts), propylene glycol (10 parts), xanthan gum (0.28 parts), sodium polyacrylate having mass average molecular weight of about 4,000 (0.5 parts) and water (69.44 parts) were mixed and wet-pulverized to prepare an agrochemical composition (aqueous suspension preparation) of the present invention containing 18.8% by mass of pyribencarb.

Example 3

(4) Pyribencarb (18.8 parts), partially desulfonated sodium lignin sulfonate having purity of 91% by mass (containing 9% by mass of inorganic salts as impurities, 0.63 parts), sodium butylnaphthalenesulfonate formalin condensate (0.25 parts), polyalkyl polysiloxane (0.1 parts), propylene glycol (10 parts), xanthan gum (0.28 parts), sodium polyacrylate having mass average molecular weight of about 4,000 (0.5 parts) and water (69.44 parts) were mixed and wet-pulverized to prepare an agrochemical composition (aqueous suspension preparation) of the present invention containing 18.8% by mass of pyribencarb.

Example 4

(5) Pyribencarb (18.8 parts), sodium lignin sulfonate having purity of 92% by mass (containing 3% by mass of reducing sugars, 3% by mass of sugar sulfonic acids, 2% by mass of inorganic salts as impurities, 0.63 parts), sodium butylnaphthalenesulfonate formalin condensate (0.25 parts) polyalkyl polysiloxane (0.1 parts), propylene glycol (10 parts), xanthan gum (0.28 parts), sodium polyacrylate having mass average molecular weight of about 4,000 (0.5 parts) and water (69.44 parts) were mixed and wet-pulverized to prepare an agrochemical composition (aqueous suspension preparation) of the present invention containing 18.8% by mass of pyribencarb.

Example 5

(6) Pyribencarb (18.8 parts), modified sodium lignin sulfonate having purity of 90% by mass (containing 5% by mass of sugar sulfonic acids, 5% by mass of inorganic salts as impurities, 0.63 parts), sodium butylnaphthalenesulfonate formalin condensate (0.25 parts), polyalkyl polysiloxane (0.1 parts), propylene glycol (10 parts), xanthan gum (0.28 parts), sodium polyacrylate having mass average molecular weight of about 4,000 (0.5 parts) and water (69.44 parts) were mixed and wet-pulverized to prepare an agrochemical composition (aqueous suspension preparation) of the present invention containing 18.8% by mass of pyribencarb.

Example 6

(7) Pyribencarb (18.8 parts), calcium lignin sulfonate having purity of 92% by mass (containing 4% by mass of reducing sugars, 3% by mass of sugar sulfonic acids, 1% by mass of inorganic salts as impurities, 0.63 parts), styrene/sodium maleate copolymer having mass average molecular weight of 7,000 to 8,000 (0.08 parts), polyalkyl polysiloxane (0.1 parts), propylene glycol (10 parts), xanthan gum (0.28 parts), sodium polyacrylate having mass average molecular weight of about 4,000 (0.5 parts) and water (69.61 parts) were mixed and wet-pulverized to prepare an agrochemical composition (aqueous suspension preparation) of the present invention containing 18.8% by mass of pyribencarb.

Example 7

(8) Pyribencarb (18.8 parts), partially desulfonated sodium lignin sulfonate having purity of 91% by mass (containing 9% by mass of inorganic salts as impurities, 0.63 parts), styrene/sodium maleate copolymer having mass average molecular weight of 7,000 to 8,000 (0.08 parts), polyalkyl polysiloxane (0.1 parts), propylene glycol (10 parts), xanthan gum (0.28 parts), sodium polyacrylate having mass average molecular weight of about 4,000 (0.5 parts) and water (69.61 parts) were mixed and wet-pulverized to prepare an agrochemical composition (aqueous suspension preparation) of the present invention containing 18.8% by mass of pyribencarb.

Example 8

(9) Pyribencarb (18.8 parts), calcium lignin sulfonate having purity of 92% by mass (containing 4% by mass of reducing sugars, 3% by mass of sugar sulfonic acids, 1% by mass of inorganic salts as impurities, 0.63 parts), sodium polyacrylate having mass average molecular weight of about 38,000 (0.1 parts), polyalkyl polysiloxane (0.1 parts), propylene glycol (10 parts), xanthan gum (0.28 parts), sodium polyacrylate having mass average molecular weight of about 4,000 (0.5 parts) and water (69.59 parts) were mixed and wet-pulverized to prepare an agrochemical composition (aqueous suspension preparation) of the present invention containing 18.8% by mass of pyribencarb.

Example 9

(10) Pyribencarb (18.8 parts), calcium lignin sulfonate having purity of 92% by mass (containing 4% by mass of reducing sugars, 3% by mass of sugar sulfonic acids, 1% by mass of inorganic salts as impurities, 0.63 parts), sodium polyacrylate having mass average molecular weight of about 10,000 (0.11 parts), polyalkyl polysiloxane (0.1 parts), propylene glycol (10 parts), xanthan gum (0.28 parts), sodium polyacrylate having mass average molecular weight of about 4,000 (0.5 parts) and water (69.58 parts) were mixed and wet-pulverized to prepare an agrochemical composition (aqueous suspension preparation) of the present invention containing 18.8% by mass of pyribencarb.

Example 10

(11) Pyribencarb (18.8 parts), sodium lignin sulfonate having purity of 86.2% by mass (containing 5.3% by mass of sugar sulfonic acids, 8.5% by mass of inorganic salts as impurities, 0.63 parts), sodium polyacrylate having mass average molecular weight of about 38,000 (0.1 parts), polyalkyl polysiloxane (0.1 parts), propylene glycol (10 parts), xanthan gum (0.28 parts), sodium polyacrylate having mass average molecular weight of about 4,000 (0.5 parts) and water (69.59 parts) were mixed and wet-pulverized to prepare an agrochemical composition (aqueous suspension preparation) of the present invention containing 18.8% by mass of pyribencarb.

Example 11

(12) Pyribencarb (18.8 parts), sodium lignin sulfonate having purity of 92% by mass (containing 1% by mass of reducing sugars, 7% by mass of inorganic salts as impurities, 0.63 parts), sodium polyacrylate having mass average molecular weight of about 38,000 (0.1 parts), polyalkyl polysiloxane (0.1 parts), propylene glycol (10 parts), xanthan gum (0.28 parts), sodium polyacrylate having mass average molecular weight of about 4.000 (0.5 parts) and water (69.59 parts) were mixed and wet-pulverized to prepare an agrochemical composition (aqueous suspension preparation) of the present invention containing 18.8% by mass of pyribencarb.

Comparative Example 1

(13) Pyribencarb (18.8 parts), polyoxyethylenetristyrylphenyl ether phosphate potassium salt (10 parts), a polyoxyethylene/polyoxypropylene block copolymer (2 parts), polyalkyl polysiloxane (0.1 parts), propylene glycol (1.0 parts), xanthan gum (0.28 parts) and water (58.32 parts) were mixed and wet-pulverized to prepare an agrochemical composition (aqueous suspension preparation) containing 18.8% by mass of pyribencarb.

Comparative Example 2

(14) Pyribencarb (18.8 parts), polyoxyethylenetristyrylphenyl ether phosphate potassium salt (10 parts), a polyoxyethylene/polyoxypropylene block copolymer (2 parts), polyalkyl polysiloxane (0.1 parts), propylene glycol (10 parts), xanthan gam (0.28 parts), sodium polyacrylate having mass average molecular weight of about 4,000 (0.5 parts) and water (58.32 parts) were mixed and wet-pulverized to prepare an agrochemical composition (aqueous suspension preparation) containing 18.8% by mass of pyribencarb.

Comparative Example 3

(15) Pyribencarb (18.8 parts), sodium methylnaphthalenesulfonate formalin condensate (0.13 parts), polyoxyethylenetristyrylphenyl ether phosphate ammonium salt (0.5 parts), polyoxyalkylene glycol (0.5 parts), polyalkyl polysiloxane (0.1 parts), propylene glycol (10 parts), xanthan gum (0.28 parts), sodium polyacrylate having mass average molecular weight of about 4,000 (0.5 parts) and water (69.19 parts) were mixed and wet-pulverized to prepare an agrochemical composition (aqueous suspension preparation) containing 18.8% by mass of pyribencarb.

Comparative Example 4

(16) Pyribencarb (18.8 parts), polyoxyethylenestyrylphenyl ether sulfate sodium salt (0.94 parts), polyoxyethylenestyrylphenyl ether (0.94 parts), sodium dodecylbenzenesulfonate (0.1 parts), polyalkyl polysiloxane (0.1 parts), propylene glycol (1.0 parts), xanthan gum (0.28 parts), sodium polyacrylate having mass average molecular weight of about 4,000 (0.5 parts) and water (68.34 parts) were mixed and wet-pulverized to prepare an agrochemical composition (aqueous suspension preparation) containing 18.8% by mass of pyribencarb.

Comparative Example 5

(17) Pyribencarb (18.8 parts), calcium lignin sulfonate having purity of 92% by mass (containing 3% by mass of reducing sugars, 4% by mass of sugar sulfonic acids, 1% by mass of inorganic salts as impurities, 0.63 parts), sodium butylnaphthalenesulfonate formalin condensate (0.25 parts), polyoxyethylenetristyrylphenyl ether ammonium sulfate (1 part), polyoxyalkylene glycol (1 part), polyalkyl polysiloxane (0.1 parts), propylene glycol (10 parts), xanthan gum (0.28 parts), sodium polyacrylate having mass average molecular weight of about 4,000 (0.5 parts) and water (67.44 parts) were mixed and wet-pulverized to prepare an agrochemical composition (aqueous suspension preparation) containing 18.8% by mass of pyribencarb.

Comparative Example 6

(18) Pyribencarb (18.8 parts), calcium lignin sulfonate having purity of 92% by mass (containing 3% by mass of reducing sugars, 4% by mass of sugar sulfonic acids, 1% by mass of inorganic salts as impurities, 0.63 parts), sodium butylnaphthalenesulfonate formalin condensate (0.25 parts), fatty acid sodium salt (1 part), polyalkyl polysiloxane (0.1 parts), propylene glycol (10 parts), xanthan gum (0.28 parts), sodium polyacrylate having mass average molecular weight of about 4,000 (0.5 parts) and water (68.44 parts) were mixed and wet-pulverized to prepare an agrochemical composition (aqueous suspension preparation) containing 18.8% by mass of pyribencarb.

Comparative Example 7

(19) Pyribencarb (18.8 parts), calcium lignin sulfonate having purity of 92% by mass (containing 3% by mass of reducing sugars, 4% by mass of sugar sulfonic acids, 1% by mass of inorganic salts as impurities, 0.63 parts), sodium naphthalenesulfonate formalin condensate (0.25 parts), polyalkyl polysiloxane (0.1 parts), propylene glycol (10 parts), xanthan gum (0.28 parts), sodium polyacrylate having mass average molecular weight of about 4,000 (0.5 parts) and water (69.44 parts) were mixed and wet-pulverized to prepare an agrochemical composition (aqueous suspension-preparation) containing 18.8% by mass of pyribencarb.

Comparative Example 8

(20) Pyribencarb (18.8 parts), sodium polyacrylate having mass average molecular weight of about 38,000 (0.1 parts), sodium dibultylnaphthalenesulfonate formalin condensate (0.44 parts), polyalkyl polysiloxane (0.1 parts), propylene glycol (10 parts), xanthan gum (0.28 parts), sodium polyacrylate having mass average molecular weight of about 4,000 (0.5 parts) and water (69.78 parts) were mixed and wet-pulverized to prepare an agrochemical composition (aqueous suspension preparation) containing 18.8% by mass of pyribencarb.

Comparative Example 9

(21) Pyribencarb (18.8 parts), sodium polyacrylate having mass average molecular weight of about 10,000 (0.11 parts), sodium dibutylnaphthalenesulfonate formalin condensate (0.44 parts), polyalkyl polysiloxane (0.1 parts), propylene glycol (10 parts), xanthan gum (0.28 parts), sodium polyacrylate having mass average molecular weight of about 4,000 (0.5 parts) and water (69.77 parts) were mixed and wet-pulverized to prepare an agrochemical composition (aqueous suspension preparation) containing 18.8% by mass of pyribencarb.

Comparative Example 10

(22) Pyribencarb (18.8 parts), calcium lignin sulfonate having purity of 83% by mass (containing 1% by mass of reducing sugars, 7% by mass of sugar sulfonic acids, 9% by mass of inorganic salts, 0.63 parts), sodium polyacrylate having mass average molecular weight of about 38,000 (0.1 parts), polyalkyl polysiloxane (0.1 parts), propylene glycol (10 parts), xanthan gum (0.28 parts), sodium polyacrylate having mass average molecular weight of about 4,000 (0.5 parts) and water (69.59 parts) were mixed and wet-pulverized to prepare an agrochemical composition (aqueous suspension preparation) containing 18.8% by mass of pyribencarb.

Comparative Example 11

(23) Pyribencarb (18.8 parts), calcium lignin sulfonate having purity of 81% by mass (7% by mass of reducing sugars, 7% by mass of sugar sulfonic acids, 5% by mass of inorganic acids, 0.63 parts), sodium polyacrylate having mass average molecular weight of about 38,000 (0.1 parts), polyalkyl polysiloxane (0.1 parts), propylene glycol (10 parts), xanthan gum (0.28 parts), sodium polyacrylate having mass average molecular weight of about 4,000 (0.5 parts) and water (69.59 parts) were mixed and wet-pulverized to prepare an agrochemical composition (aqueous suspension preparation) containing 18.8% by mass of pyribencarb.

Reference Example 1

(24) Polyoxyethylenetristyrylphenyl ether phosphate potassium salt (10 parts), polyoxyethylene/polyoxypropylene block copolymer (2 parts), polyalkyl polysiloxane (0.1 parts), propylene glycol (10 parts), xanthan gum (0.28 parts) and water (77.62 parts) were mixed and wet-pulverized to prepare an aqueous composition which was same as an agrochemical composition of Comparative Example 1 except that pyribencarb was replaced with water.

Reference Example 2

(25) Polyoxyethylenestyrylphenyl ether sulfate sodium salt (0.94 parts), polyoxyethylenestyrylphenyl ether (0.94 parts), sodium dodecylbenzenesulfonate (0.1 parts), polyalkyl polysiloxane (0.1 parts), propylene glycol (10 parts), xanthan gum (0.28 parts), sodium polyacrylate having mass average molecular weight of about 4,000 (0.5 parts) and water (87.14 parts) were mixed and wet-pulverized to prepare an aqueous composition which was same as an agrochemical composition of Comparative Example 4 except that pyribencarb was replaced with water.

Reference Example 3

(26) Calcium lignin sulfonate having purity of 81% by mass (containing 7% by mass of reducing sugars, 7% by mass of sugar sulfonic acids, 5% by mass of inorganic salts as impurities, 0.63 parts), sodium polyacrylate having mass average molecular weight of about 38,000 (0.1 parts), polyalkyl polysiloxane (0.1 parts), propylene glycol (10 parts), xanthan gum (0.28 parts), sodium polyacrylate having mass average molecular weight of about 4,000 (0.5 parts) and water (88.39 parts) were mixed and wet-pulverized to prepare an aqueous composition which was same as an agrochemical composition of Comparative Example 11 except that pyribencarb was replaced with water.

Test Example 1

(27) Finely pulverized pyribencarb (2.3 g) or an agrochemical composition or aqueous composition of Examples 2, 6, 8 and 11, Comparative Examples 1, 4 and 11, or Reference Examples 1 to 3 (12.5 mL) as a first agent, and commercially available agrochemical composition containing etofenprox, i.e., trade name TREBON EC (manufactured by MITSUI CHEMICAL AGRO, 12.5 mL) or trade name TREBON EW (manufactured by MITSUI CHEMICAL AGRO, 25 mL) as a second agent, and a predetermined amount water were mixed to make total amount 200 mL. This mixture and a stirring bar were placed in a 500 mL beaker, and after stirring for 15 minutes using a magnetic stirrer, the product was passed through a sieve having opening of 63 m and examined for the presence/absence of aggregates left on the sieve. The results are shown in Table 1.

(28) TABLE-US-00001 TABLE 1 First Agent Second Agent Aggregate Pyribencarb Trade name TREBON Much EC Pyribencarb Trade name TREBON Much EW Example 2 Trade name TREBON None EC Example 2 Trade name TREBON None EW Example 6 Trade name TREBON None EC Example 6 Trade name TREBON None EW Example 8 Trade name TREBON None EC Example 8 Trade name TREBON None EW Example 11 Trade name TREBON None EC Example 11 Trade name TREBON None EW Comparative Trade name TREBON Much Example 1 EC Comparative Trade name TREBON Much Example 1 EW Comparative Trade name TREBON Much Example 4 EC Comparative Trade name TREBON Much Example 4 EW Comparative Trade name TREBON Much Example 11 EC Comparative Trade name TREBON Much Example 11 EW Reference Trade name TREBON None Example 1 EC Reference Trade name TREBON None Example 1 EW Reference Trade name TREBON None Example 2 EC Reference Trade name TREBON None Example 2 EW Reference Trade name TREBON None Example 3 EC Reference Trade name TREBON None Example 3 EW

(29) As is obvious from these results, the agrochemical compositions of the Comparative Examples containing pyribencarb generate aggregates when blended with an agrochemical composition containing etofenprox, and therefore has problems in blendability of both compositions, and aggregate formation is attributable to pyribencarb. However, blending the agrochemical composition of the present invention and an agrochemical composition containing etofenprox did not generate such aggregates.

Test Example 2

(30) Each of agrochemical compositions of Examples, Comparative Examples (12.5 mL) as a first agent and commercially available agrochemical composition containing etofenprox, i.e., trade name TREBON AIR (manufactured by MITSUI CHEMICAL AGRO, 25 mL) as a second agent, and a predetermined amount water were mixed to make total amount 200 mL, thus an agrochemical solution for spraying was prepared. This agrochemical solution for spraying was placed in a 500 mL beaker, and after stirring using a stirrer (trade name Three-One Motor TYPE: 600G, manufactured by SHINTO SCIENTIFIC) for 15 minutes, the product was passed through a sieve having opening of 63 m, and examined for the presence/absence of aggregates left on the sieve. The results are shown in Table 2. When 12.5 mL of the first agent or 25 mL of the second agent was solely mixed with a predetermined amount of water to make total amount 200 mL to prepare an agrochemical solution for spraying which was processed according to the foregoing, no aggregates were left on the sieve in the test using any of the first agent and the second agent.

(31) TABLE-US-00002 TABLE 2 First Agent Second Agent Aggregate Example 1 Trade name TREBON None AIR Example 2 Trade name TREBON None AIR Example 3 Trade name TREBON None AIR Example 4 Trade name TREBON None AIR Example 5 Trade name TREBON None AIR Example 6 Trade name TREBON None AIR Example 7 Trade name TRERON None AIR Example 8 Trade name TREBON None AIR Example 9 Trade name TRESON Trace AIR Example 10 Trade name TREBON Trace AIR Example 11 Trade name TREBON None AIR Comparative Trade name TREBON Much Example 1 AIR Comparative Trade name TREBON Much Example 2 AIR Comparative Trade name TREBON Much Example 3 AIR Comparative Trade name TREBON Much Example 4 AIR Comparative Trade name TREBON Much Example 5 AIR Comparative Trade name TREBON Much Example 6 AIR Comparative Trade name TREBON Much Example 7 AIR Comparative Trade name TREBON Much Example 8 AIR Comparative Trade name TREBON Much Example 9 AIR Comparative Trade name TREBON Much Example 10 AIR Comparative Trade name TREBON Much Example 11 AIR

(32) The agrochemical solution for spraying containing the agrochemical composition of the present invention blended with an agrochemical composition containing etofenprox generated no aggregates or, if any, negligible aggregates, i.e., extremely small amounts of aggregate without producing practical problem, and blendability of both compositions were good. On the other hand, agrochemical solution for spraying containing an agrochemical composition of Comparative Examples blended with an agrochemical composition containing etofenprox generated a large amount of aggregates, and blendability of both compositions was bad.

Test Example 3

(33) An agrochemical composition of Examples 1, 2, 8, 9, 10 and 11 and Comparative Examples 1 and 2 in an amount of 400 mL each as a first agent and 800 mL of commercially available agrochemical composition containing etofenprox, i.e., trade name TREBON AIR (manufactured by MITSUI CHEMICAL AGRO) were mixed with a predetermined amount of water to make total amount 6.4 L to prepare an agrochemical solution for spraying. This agrochemical solution for spraying was intended to be applied onto agricultural land or the like by aerial spraying in an amount of 8 L/ha including about 100 g/ha of pyribencarb and about 100 g/ha of etofenprox. The agrochemical solution for spraying was charged in a liquid spraying device mounted on an industrial unmanned helicopter, trade name R-MAX: Type II (manufactured, by YAMAHA MOTOR), and the agrochemical solution for spraying was ejected from a nozzle at the specified speed of 32 mL/sec while cycling at pumping operation voltage of 7.8 V, and time required to evacuate the total amount of agrochemical solution for spraying was recorded. These operations were taken as one cycle, and the ejected agrochemical solution for spraying was received in a bucket, re-charged in the liquid spraying device, and the ejection operations were repeated up to 5 cycles. In the case where a decrease in ejection speed, that is, ejection failure was observed during the test, the test was terminated at that point. The results are shown in Table 3.

(34) TABLE-US-00003 TABLE 3 First Agent Second Agent Time required for ejection (min) Example 1 Trade name 1st Cycle 3.4 TREBON 2nd Cycle 3.4 AIR 3rd Cycle 3.4 4th Cycle 3.4 5th Cycle 3.4 Example 2 Trade name 1st Cycle 3.4 TREBON 2nd Cycle 3.4 AIR 3rd Cycle 3.4 4th Cycle 3.4 5th Cycle 3.4 Example 8 Trade name 1st Cycle 3.4 TREBON 2nd Cycle 3.4 AIR 3rd Cycle 3.4 4th Cycle 3.4 5th Cycle 3.4 Example 9 Trade name 1st Cycle 3.4 TREBON 2nd Cycle 3.4 AIR 3rd Cycle 3.4 4th Cycle 3.4 5th Cycle 3.4 Example 10 Trade name 1st Cycle 3.4 TREBON 2nd Cycle 3.4 AIR 3rd Cycle 3.4 4th Cycle 3.4 5th Cycle 3.4 Example 11 Trade name 1st Cycle 3.4 TREBON 2nd Cycle 3.4 AIR 3rd Cycle 3.4 4th Cycle 3.4 5thCycle 3.4 Comparative Trade name 1st Cycle 3.8 Example 1 TREBON 2nd Cycle 5 or more AIR From 3rd Cycle Discontinued onward Comparative Trade name 1st Cycle 4.0 Example 2 TREBON 2nd Cycle 5 or more AIR From 3rd Cycle Discontinued onward

(35) An agrochemical composition for spraying using the agrochemical composition of the present invention blended with an agrochemical composition containing etofenprox exhibited good ejection performance using actual machine and enabled blend spraying. On the other hand, an agrochemical solution for spraying solution using a blend of the agrochemical composition of Comparative Example and an agrochemical composition containing etofenprox generated aggregates which were clogged in the flow path in the actual machine, and the discharge speed decreased upon repeated test. That is, it was impossible to conduct blend spraying.