Impact of Humidity on Clustered Tick Eggs

Overview

Journal Parasitol Res

Specialty Parasitology

Date 2014 Sep 10

PMID 25199556

Citations 1

Authors

Walmirton B DAlessandro

Juscelino Rodrigues

Everton K K Fernandes

Christian Luz

Affiliations

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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.

Citing Articles

Efficacy of water- and oil-in-water-formulated Metarhizium anisopliae in Rhipicephalus sanguineus eggs and eclosing larvae.

Luz C, DAlessandro W, Rodrigues J, Fernandes E Parasitol Res. 2015; 115(1):143-9.

PMID: 26364059 DOI: 10.1007/s00436-015-4729-z.

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