Abstract
THE activity of the sheep or grass tick, Ixodes ricinus L., in Great Britain has been reported by various workers1,2,3 to be confined to two periods of the year: (a) spring activity, extending from March until early June, (b) autumn activity, from late August until the end of September. Outside these periods, ticks are said to be scarce during the summer months and completely inactive in winter.
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References
Wheler, E. H., Proc. Roy. Agric. Soc., Eng., 4, 626 (1899).
Stewart, W. L., Proc. Roy. Agric. Soc., Eng., 97, 81 (1936); MacLeod, J., Parasitology, 24, 396 (1932).
MacLeod, J., Parasitology, 27, 298 (1936).
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HENDRICK, J., MOORE, W. & MORISON, G. Activity of the Sheep Tick. Nature 141, 648 (1938). https://doi.org/10.1038/141648a0
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DOI: https://doi.org/10.1038/141648a0
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