Sensitivity of Host-Seeking Nymphal Lone Star Ticks (Acari: Ixodidae) to Immersion in Heated Water

A. D. Barrett; K. N. Gott; J. M. Barrett; D. J. Barrett; D. T. Rusk

doi:10.1603/033.046.0537

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A. D. Barrett,¹ K. N. Gott,¹ J. M. Barrett,¹ D. J. Barrett,^1,* D. T. Rusk¹

¹Chesapeake Project for the Prevention of Lyme Disease (CPPLD), P.O. Box 1053, Solomons, MD 20688-105

^*Corresponding author, e-mail: david.barrett@navy.mil.

Abstract

Host-seeking nymphal Amblyomma americanum (L.) (Acari: Ixodidae) were placed into heated water, and their survival or their torpidity was recorded as a function of exposure time. Exposures were determined that either kill the nymphs or affect their mobility. All nymphs died when exposed for a minute or more to a temperature >51°C. Nearly all nymphs remained motionless for a period of time when exposed for 3 min to a temperature >44°C.

Citation Download Citation

A. D. Barrett, K. N. Gott, J. M. Barrett, D. J. Barrett, and D. T. Rusk "Sensitivity of Host-Seeking Nymphal Lone Star Ticks (Acari: Ixodidae) to Immersion in Heated Water," Journal of Medical Entomology 46(5), 1240-1243, (1 September 2009). https://doi.org/10.1603/033.046.0537

Received: 1 February 2008; Accepted: 1 July 2009; Published: 1 September 2009