Agrochemical composition for foliage treatment
AssigneeKumiai Chemical Industry Co., Ltd.
InventorsHirokazu Arai, Yukiko Nakajima, Toshihiro Ikeuchi, Atsushi Sato
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Abstract
Provided is an agrochemical composition for foliage treatment, which does not cause phytotoxicity to a cultivated crop due to adhesion thereto when foliage treatment of an upland field is performed with pyroxasulfone, but has a high level of safety and an herbicidal effect on a broad spectrum of weeds. The agrochemical composition for foliage treatment comprises pyroxasulfone and a masking material that masks the pyroxasulfone, wherein the pyroxasulfone is microencapsulated in or coated with the masking material such that phytotoxicity to a cultivated crop due to adhesion thereto when foliage spraying is performed is avoided.
Claims12
An agrochemical composition for foliage treatment comprising pyroxasulfone and a masking material that masks the pyroxasulfone,
- wherein the pyroxasulfone is microencapsulated in or coated with the masking material such that phytotoxicity to a cultivated crop due to adhesion thereto when foliage spraying is performed is avoided, wherein the masking effect of the masking material is quickly diminished after the spraying and
- wherein a concentration K24 is equal to or less than twice a solubility of pyroxasulfone in water and a concentration K1 is equal to or less than 55% of the concentration K24, wherein the concentrations K1 and K24 are obtained by measuring a concentration of pyroxasulfone in water 1 hour and 24 hours after a pre-determined amount of the agrochemical composition for foliage treatment is added to water at 20° C., respectively.
Dependencies are inferred from the claim text.