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- Title
Impact of humidity on clustered tick eggs.
- Authors
D'Alessandro, Walmirton; Rodrigues, Juscelino; Fernandes, Éverton; Luz, Christian
- Abstract
Eclosion of larvae from clustered tick eggs (1, 5, 10, 15, 20, 25, 50, and ±1,000 eggs) of Rhipicephalus sanguineus ( Rs), Rhipicephalus microplus ( Rm), Amblyomma cajennense ( Ac), and Dermacentor nitens ( Dn) was investigated at 43, 75, and > 98 % relative humidity (RH) and 25 °C. Susceptibility of eggs to dehydration varied among tick species ( Rs < Rm < Ac and Dn) and the number of clustered eggs but even singularized eggs of all tested species matured, and larvae eclosed at RH > 98 %. A minimum of 25 clustered eggs and relative humidity close to saturation is suggested for quantitative tests on ovicidal activity of acaricides for related tick species.
- Subjects
TICKS; BROWN dog tick; HUMIDITY; DERMACENTOR; EGGS
- Publication
Parasitology Research, 2014, Vol 113, Issue 10, p3899
- ISSN
0932-0113
- Publication type
Article
- DOI
10.1007/s00436-014-4128-x