The present invention relates to agricultural mixtures comprising as active compound I a pesticidal active carboxamide and at least one fungicidal active compound II selected from azoles, strobilurins, carboxamides, carbamates, heterocyclic and various other compounds, in synergistically effective amounts. The invention relates further to methods and use of these mixtures for combating insects, arachnids or nematodes and harmful fungis in and on plants, and for protecting such plants being infested with pests, especially also for protecting seeds.