| 摘要 |
Composition for combating blue-green algae, containing a compound of the formula <IMAGE> in which R represents an alkenyl radical which has 3 to 9 carbon atoms, which contains 1 to 3 double bonds and which is monosubstituted to trisubstituted by a methyl radical and by a hydroxyl group or an acetyl group, or the derivatives of this compound, and a method for combating blue-green algae with these active substances. |
