Soil and crop management practices affect earthworm activities. Long-term tillage and cropping systems experiments were conducted on a Orelia scl (Typic Ochraqualf). Sorghum, corn and cotton crops were grown in split-plots in each of five tillage systems. No-till (NT), minimum till (MT), chisel (Ch 30 –cm depth), moldboard (MLB – 30cm) and conventional tillage (CT) were compared in the same plot location for 24 years. Minimum tillage involved reducing tillage trips from eight to three and maintaining depth at 7cm. The NT treatment had zero tillage with the 60-20-0 fertilizer rate knifed in for all treatments. Earthworm activity (Aporrectodea trapezoides) was determined by counting casts (mounds) under both wheel traffic and non-traffic areas in all tillage systems and crops. No-till and MT showed the highest activity in all crops when compared to the MLB and CT systems. Generally, corn encouraged earthworm activity more than grain sorghum or cotton.