Ten-fold enhancement of 2,4-D effect on water hyacinth by addition of gibberellic acid.
Under greenhouse conditions the effective concentration of 2,4-D (amine salt) for killing water hyacinths could be decreased 10 times if 2,k4-D was applied in combination with extremely low concentrations of gibberellic acid (6 g/ha or higher). This implies that in practice the risk of harming nearby vegetation is considerably reduced, and the cost of spraying programmes might be decreased.
D015084:2,4-Dichlorophenoxyacetic Acid / Q000494:pharmacology*; D004357:Drug Synergism; D005875:Gibberellins / Q000494:pharmacology*; D010944:Plants / Q000187:drug effects*
D005875:Gibberellins; D015084:2,4-Dichlorophenoxyacetic Acid; C007842:gibberellic acid