Parasitology Research (2014) 113, 3899-3902

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Walmirton B. D'Alessandro, Juscelino Rodrigues, Éverton K.K. Fernandes and Christian Luz (2014)
Impact of humidity on clustered tick eggs
Parasitology Research 113 (10), 3899-3902
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.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Christian Luz

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution
environment - cropping system/rotation

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.

Rhipicephalus sanguineus
Amblyomma cajennense
Rhipicephalus microplus
Dermacentor nitens