Summary
The presence of an aggregation pheromone has been demonstrated for the first time in indigenous Australian ticks. Filter paper discs exposed to either Australian paralysis ticks Ixodes holocyclus or echidna ticks Aponomma concolor showed inter-sex or intra-sex attraction for ticks of their own species. Nymphal exuviae of Ap. concolor were highly attractive to adult ticks. Discs were significantly attractive to I. holocyclus at distances up to 80 cm.
Similar content being viewed by others
References
M. G. Leahy, R. Vandehey and R. Galun, Nature, Lond.246, 515 (1973).
M. G. Leahy, G. Karuhize, C. Mango and R. Galun, J. med. Ent.12 284 (1975).
M. G. Leahy, S. Sternberg, C. Mango and R. Galun, J. med. Ent.12, 413 (1975).
Y. Rechav, G. B. Whitehead and M. M. Knight, Nature, Lond.259, 563 (1976).
R. S. Berger, J. Dukes and Y. Chow, J. med. Ent.8, 84 (1971).
W. Gladney, Nature, Lond.232, 401 (1971).
W. J. Gladney, R. Grabbe, S. Ernst and D. Dehler, J. med. Ent.11, 303 (1974).
D. E. Sonenshine, R. Silverstein, E. Layton and P. Homsher, I. med. Ent.11, 307 (1974).
F. H. S. Roberts, in: Australian Ticks. CSIRO, Melbourne 1970.
I. holocyclus ticks are very sensitive to desiccation while Ap. concolor are relatively inactive in daylight.
The difference in ages was due to the initial experiments being conducted independently. Ap. concolor appears to have a much greater longevity than I. holocyclus.
4–6 discs were soaked in 1 ml of 1% NaCl solution for 24 h and the extract reapplied to fresh discs.
These ticks were derived from the original batch which was the only one available for use throughout this series of experiments but remained active at this advance age.
D. F. Moorehouse, J. med. Ent.3, 168 (1966).
Author information
Authors and Affiliations
Additional information
Our thanks to Mr I. J. Lewis, Director, Cattle Tick Research Station, for initiating the study of possible pheromones in I. holocyclus, and for his continued encouragement throughout.
Rights and permissions
About this article
Cite this article
Treverrow, N.L., Stone, B.F. & Cowie, M. Aggregation pheromones in 2 Australian hard ticks, Ixodes holocyclus and Aponomma concolor. Experientia 33, 680–682 (1977). https://doi.org/10.1007/BF01946573
Issue Date:
DOI: https://doi.org/10.1007/BF01946573