-- For soybeans, U.S. farmers paid 24% more on average from 2023-2025, even though Brazilian seeds most likely stack herbicide and insecticide resistance while most U.S. varieties are only herbicide-resistant. -- Looking at fungicides, American farmers are paying more than double the price Brazilian farmers pay, depending on the crop. Brazilian farmers have more access to generic products or older active ingredients while U.S. farmers use higher-cost formulations.