Influence of habitat and landscape perenniality on insect natural enemies in three candidate biofuel crops

► We sampled natural enemies in three model biofuel crops (corn, switchgrass, prairie) in different landscapes. ► Results suggest biofuel-driven landscape changes will shift the types of natural enemies that are abundant on farmland. ► At local scales, grassland biofuels may support natural enemies that are rare in existing agricultural crops like corn. ► At landscape scales, grasslands could benefit native coccinellids and conserve natural enemies important in annual crops.