Liquid herbicidal preparations

An oil dispersion comprising:

• (a) a herbicidally effective amount of a plurality of compounds comprising:
• desmedipham of the formula (a1):
• phenmedipham of the formula (a2):
• ethofumesate of the formula (a3):
• and lenacil of the formula (a4):
• (b) one or more surfactants;
• (c) one or more compounds, selected from the group consisting of fully esterified organic phosphates and fully esterified phosphonates, as solvents;
• (d) if desired, other organic solvents;
• (e) if desired, other, customary formulating auxiliaries;
• and
• (f) if desired, water
• wherein the amounts of components (a) to (f) are:
• (a) 15% to 30% by weight of active ingredients (a1) to (a4),
• (b) 15% to 60% by weight of surfactants,
• (c) 15% to 50% by weight of phosphoric triesters or phosphonic diesters,
• (d) 0% to 20% by weight of further solvents,
• (e) 0% to 10% by weight of further, customary formulating auxiliaries,
• (f) 0% to 10% by weight of water,
• wherein the weight ratio of active ingredients (a1):(a2):(a3):(a4) is in a range of from (1):(1):(1):(0.3) to (1):(5):(8):(4).