This article focuses on the control of beet leaf miner by soil-applied pesticides in eastern England. Damage to the leaves of sugar-beet seedlings by larvae of Pegomya betae was prevented or greatly decreased by drilling aldicarb, Dupont 1410, methomyl Mocap or pirimiphosmethyl at rates in the range 4-60 ounce a.i./acre in the furrow with the seed.