Potential of Marava arachidis, a Newly Recorded Earwig Species in Egypt as a Biological Control Agent of Rhipicephalus annulatus Tick in Laboratory

Shawky M. Aboelhadid, Abdel Azeem S. Abdel-Baki, Sahar M. Gadelhaq, Walid H. Hassan, Lamjed Mansour, Saleh Al-Quraishy, Yoshitaka Kamimura, Chow Yang Lee, Asmaa A. Kamel

Research output: Contribution to journalArticlepeer-review

Abstract

In Egypt, only five species of Dermaptera (earwigs) have been reported. Based on both the morphological and molecular data of the earwig samples collected from a bakery in Beni-Suef, Egypt, we identified the species as Marava arachidis (Spongiphoridae), a cosmopolitan species with no prior records in Egypt. The current study was designed to analyze its predation capability on newly emerged eggs and larvae of the Rhipicephalus annulatus tick. A laboratory functional response study was set up by applying a predation test with various predator-prey ratios as treatments. This experiment was applied using the undefined mix of collected earwigs and the laboratory-collected eggs and the larvae of R. annulatus. The laboratory results showed that the mean number of predated tick eggs was 18.64 ± 11.18 in 24 h under the highest predator-prey ratio (1:10) examined, accompanied by 12.04 ± 4.38 broken but unconsumed eggs. Moreover, M. arachidis predated an average of 12.32 ± 9.07 tick larvae per day. In contrast, the mean dead larvae increased to 38.4 ± 2.30 per day with the highest predator density (1:10). The number of eggs and larvae consumed increased with the predator density. A linear relationship was detected between earwig density and the consumption rates of tick eggs (R2 = 0.99; p = 0.0001) and larvae (R2 = 0.96; p = 0.003). In conclusion, M. arachidis was first recorded in Egypt. This earwig has predation capability on R. annulatus tick eggs and larvae.

Original languageEnglish
Article number934
JournalInsects
Volume13
Issue number10
DOIs
Publication statusPublished - 2022 Oct

Keywords

  • Marava arachidis
  • Rhipicephalus annulatus
  • earwig
  • identification
  • predation

ASJC Scopus subject areas

  • Insect Science

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