abstract |
The present invention provides an algicide that can control miscellaneous algae. The present invention is an algicidal agent for controlling miscellaneous algae generated during seaweed cultivation, comprising an organic acid and phosphoric acid as main components, and an organic acid concentration of 0.5 to 5 W / V%. The concentration of phosphoric acid is 0.5 to 3 W / V%, the pH is adjusted to 1.8 or less, the treatment is performed for 3 minutes or less, and inorganic salts are used in combination during the treatment. [Selection figure] None |