Dataset on which the SEM analyses were conducted

Annual crop cover represents arcsine-square-root-transformed proportional cover within 500 m radius of each sampled field, floral provision = 0 are control fields, and floral provision = 1 are fields provided with a flowering strip of buckwheat, the interaction between annual crop cover and floral provision is calculated on normalized values, nitrogen content is percentage dry weight, crop yield is kg dry weight / m2, aphid and Plutella xylostella abundance are log(x+0.01)-transformed number of individuals per plant, and aphid and Plutella xylostella parasitism rates are arcsine-square-root transformed proportions.