| abstract |
PROBLEM TO BE SOLVED: To provide a method for controlling horsetail, which has excellent herbicidal effect and excellent final control effect. A method for controlling horsetail, comprising applying a composition containing an amino acid herbicide and an acetylene surfactant to horsetail, which is a difficult-to-control grass species. The composition may further contain one or more auxiliary agents selected from a cationic surfactant, an anionic surfactant, a nonionic surfactant and an organic solvent. Moreover, as an acetylene type surfactant contained in the said composition, that whose HLB is 12 or less is preferable. [Selection figure] None |