Effectiveness of Two Insecticides in Controlling Ixodes dammini (Acari: Ixodidae) Following an Outbreak of Lyme Disease in New Jersey1

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Abstract
Ixodes dammini Spielman, Clifford, Piesman & Corwin populations and rates of infection in these ticks by Borrelia burgdorferi (Johnson et al. 1984) at a military training facility in New Jersey were shown to be similar to those of other areas endemic for Lyme disease, following an outbreak in a U.S. Army Reserve Unit. Ground applications of carbaryl and diazinon directed against I. dammini adults reduced populations by 97.1 and 100%, respectively. Control persisted through the following spring. Reintroduction of subadult I. dammini into treated areas by animal hosts may necessitate repeated applications to large areas. Thus, usefulness of chemical control may be limited to areas where exposure to infected ticks is routine and avoidance is impractical.