Agrochemical formulations for treating plants, which formulations comprise, as cosolvent, polyethylene glycol (average molecular weights ranging from 200 to 400) or polypropylene glycol (average molecular weights ranging from 300 to 400) or mixtures, and, if appropriate, further additives, a process for preparing these formulations, their use for treating plants and/or their habitat and for increasing the efficacy and plant compatibility of these formulations, and for reducing volatile emission potential of these formulations.