THE INVENTION RELATES TO A HERBICIDE COMPOSITION CONTAINING (A) AN AMINO ACID-BASED HERBICIDE AND (B) A COMPOUND HAVING A BRANCHED STRUCTURE REPRESENTED BY FORMULA (1): R¹CH₂O- (R²O) nH (1) WHEREIN R¹ REPRESENTS A C3 TO C29 BRANCHED ALKYL OR BRANCHED ALKENYL GROUP, R² REPRESENTS A C2 TO C4 ALKYLENE GROUP, AND n IS A MEAN NUMBER IN THE RANGE OF 1 TO 30.