Tilling will have little effect on soybean rust overall.
Currently the most effective method for dealing with soybean rust is to apply fungicides. It is crucial to select the right fungicide and apply it at the right time. Chlorothalonil is a fungicide that targets the pathogen's mode of action and must be applied directly to the rust, as it will not be taken up by the plant. Strobilurin fungicides can be taken up by the plant and are only to be used in preventative measures. Triazoles are taken up by the plant and kill the fungus currently on the plant, providing protection for up to 4 weeks. Please contact your local plant pathologist to learn what is most effective in your area and how to use it best. Always read and follow all label instructions.
Currently, there are no moderately resistant soybean varieties on the market. Planting earlier and in wider spaced rows can cause the soybean rust virus to have a much lesser effect on total yield. Wider spaced rows will enhance the canopy's ability to dry quicker. Small sentinal crops can be planted early near large fields, enabling the earlier-maturing crop to warn the farmer if soybean rust is present.