Effects of Granular Carbaryl Application on Sympatric Populations of Ixodes scapularis and Amblyomma americanum (Acari: Ixodidae) Nymphs

Terry L. Schulze; Robert A. Jordan; Robert W. Hung

doi:10.1603/0022-2585-37.1.121

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Terry L. Schulze,¹ Robert A. Jordan,² Robert W. Hung³

¹Division of Epidemiology, Environmental and Occupational Health, New Jersey Department of Health and Senior Services, P.O. Box 369, Trenton, NJ 08625
²Freehold Area Health Department, Municipal Plaza, Schanck Road, Freehold, NJ 07728. Current address: 97 Fifth Street, Edison, NJ 09937
³Freehold Area Health Department, Municipal Plaza, Schanck Road, Freehold, NJ 07728

Abstract

A single application of granular carbaryl approaching the lowest recommended rate to the shrub layer of a forested area in late spring significantly reduced the abundance of Ixodes scapularis Say nymphs throughout their peak activity period, but had little effect on Amblyomma americanum L. nymphs. Factors influencing the efficacy of the application are discussed. The possible explanations for the lack of efficacy of granular carbaryl against A. americanum, including behavior, formulation, and application rate, are discussed.

Citation Download Citation

Terry L. Schulze, Robert A. Jordan, and Robert W. Hung "Effects of Granular Carbaryl Application on Sympatric Populations of Ixodes scapularis and Amblyomma americanum (Acari: Ixodidae) Nymphs," Journal of Medical Entomology 37(1), 121-125, (1 January 2000). https://doi.org/10.1603/0022-2585-37.1.121

Received: 12 August 1998; Accepted: 1 August 1999; Published: 1 January 2000