Abstract
Five CO2-emitting devices were compared for effectiveness in sampling nymphal and adult lone star ticks, Amblyomma americanum (L.), at previously unsampled sites and permanent sampling sites in wooded habitats of southeastern Oklahoma. Cubes of dry ice (365 to 370 g) placed on white cloth panels (0.7 by 0.9 m) were generally more effective and easier to use than dry-chemical devices or rabbit-baited devices at both types of sites. The dry-chemical devices were nearly as effective as the dry-ice devices at permanent sampling sites and did not require a nearby dry-ice supply.