Abstract: A pesticidal composition is provided in the form of an aqueous emulsion, containing: (a) an agriculturally active ingredient in which a retention rate is less than 50% after irradiation with xenon light (290 nm cutoff) at an intensity of 0.68 W/m2 at 340 nm for 8 hours; (b) a hydrophobic organic solvent; (c) a water-soluble polymer dispersing agent; and (d) water. Liquid droplets in which the agriculturally active ingredient is suspended or dissolved in the hydrophobic organic solvent are emulsified in an aqueous continuous phase. A weight ratio of the agriculturally active ingredient to the hydrophobic organic solvent is from 5:95 to 70:30. With this pesticidal composition, it is possible to inhibit photodegradation of the agriculturally active ingredient.

Abstract: A pesticidal composition in the form of an aqueous emulsion contains: (a) an agriculturally active ingredient in which a retention rate is 50% or more after irradiation with xenon light (290 nm cutoff) at an intensity of 0.68 W/m2 at 340 nm for 8 hours, and a retention rate is 40% or more and 60% or less after irradiation for 56 hours; (b) a hydrophobic organic solvent; (c) a water-soluble polymer dispersing agent; and (d) water; wherein liquid droplets in which the agriculturally active ingredient is suspended or dissolved in the hydrophobic organic solvent are emulsified in an aqueous continuous phase. A weight ratio of the agriculturally active ingredient to the hydrophobic organic solvent is from 5:95 to 70:30. With this pesticidal composition, it is possible to inhibit photodegradation of the agriculturally active ingredient.

Abstract: The present invention relates to an aqueous pesticidal composition having excellent pesticidal activity, particularly a pesticidal composition comprising a pesticidal active ingredient, a carboxy-modified methyl methacrylate-butadiene copolymer, a surfactant and water, wherein the amount of the carboxy-modified methyl methacrylate-butadiene copolymer is 20-100 parts by weight relative to 100 parts by weight of the pesticidal active ingredient and the amount of the surfactant is 0.1-50 parts by weight relative to 100 parts by weight of the pesticidal active ingredient.

Abstract: A pesticidal composition is provided in the form of an aqueous emulsion, containing: (a) an agriculturally active ingredient in which a retention rate is less than 50% after irradiation with xenon light (290 nm cutoff) at an intensity of 0.68 W/m2 at 340 nm for 8 hours; (b) a hydrophobic organic solvent; (c) a water-soluble polymer dispersing agent; and (d) water. Liquid droplets in which the agriculturally active ingredient is suspended or dissolved in the hydrophobic organic solvent are emulsified in an aqueous continuous phase. A weight ratio of the agriculturally active ingredient to the hydrophobic organic solvent is from 5:95 to 70:30. With this pesticidal composition, it is possible to inhibit photodegradation of the agriculturally active ingredient.

Abstract: In a herbicidal composition containing a sulfonylurea compound of the formula (I): a carboxymethylcellulose salt, a ligninsulfonic acid salt, a surfactant and water, growth of particle of the sulfonylurea compound suspended in the herbicidal composition scarcely occurs after the storage.

Abstract: A microcapsule is provided, containing: (a) an agriculturally active ingredient in which a retention rate is less than 50% after irradiation with xenon light (290 nm cutoff) at an intensity of 0.68 W/m2 at 340 nm for 8 hours; and (b) a hydrophobic organic solvent; wherein a weight ratio of the agriculturally active ingredient to the hydrophobic organic solvent is from 10:90 to 70:30. With this microcapsule, it is possible to inhibit photodegradation of the agriculturally active ingredient.

Abstract: A pesticidal composition in the form of an aqueous emulsion contains: (a) an agriculturally active ingredient in which a retention rate is 50% or more after irradiation with xenon light (290 nm cutoff) at an intensity of 0.68 W/m2 at 340 nm for 8 hours, and a retention rate is 40% or more and 60% or less after irradiation for 56 hours; (b) a hydrophobic organic solvent; (c) a water-soluble polymer dispersing agent; and (d) water; wherein liquid droplets in which the agriculturally active ingredient is suspended or dissolved in the hydrophobic organic solvent are emulsified in an aqueous continuous phase. A weight ratio of the agriculturally active ingredient to the hydrophobic organic solvent is from 5:95 to 70:30. With this pesticidal composition, it is possible to inhibit photodegradation of the agriculturally active ingredient.

Abstract: In a herbicidal composition containing a sulfonylurea compound of the formula (I): a carboxymethylcellulose salt, a ligninsulfonic acid salt, a surfactant and water, growth of particle of the sulfonylurea compound suspended in the herbicidal composition scarcely occurs after the storage.

Abstract: The present invention relates to an aqueous pesticidal composition having excellent pesticidal activity, particularly a pesticidal composition comprising a pesticidal active ingredient, a carboxy-modified methyl methacrylate-butadiene copolymer, a surfactant and water, wherein the amount of the carboxy-modified methyl methacrylate-butadiene copolymer is 20-100 parts by weight relative to 100 parts by weight of the pesticidal active ingredient and the amount of the surfactant is 0.1-50 parts by weight relative to 100 parts by weight of the pesticidal active ingredient.

Abstract: In a herbicidal composition containing a sulfonylurea compound of the formula (I): a carboxymethylcellulose salt, a ligninsulfonic acid salt, a surfactant and water, growth of particle of the sulfonylurea compound suspended in the herbicidal composition scarcely occurs after the storage.