Preplant incorporated applications of ethalfluralin and trifluralin provides fair to good control of kochia. Crop rotations with more effective chemical options help reduce kochia infestations. Sunflowers are limited to a few herbicides so producers look for alternative ways to manage weeds. Preplant tillage helps to stimulate and control early weed flushes. Planting is done immediately after tillage to establish sunflowers which compete better with the weeds.
Cultivation is an effective cultural control method.