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Table 1 Classification of ticks on their state of attachment and engorgement and whether they are alive or dead

From: Efficacy of slow-release collar formulations of imidacloprid/flumethrin and deltamethrin and of spot-on formulations of fipronil/(s) - methoprene, dinotefuran/pyriproxyfen/permethrin and (s) –methoprene/amitraz/fipronil against Rhipicephalus sanguineus and Ctenocephalides felis felis on dogs

Category

Condition

Attachment status

1

Alive

Unattached

2

Alive

Attached; unengorged*

3

Alive

Attached; engorged**

4

Dead

Unattached

5

Dead

Attached; unengorged*

6

Dead

Attached; engorged**

  1. * no filling of the alloscutum evident.
  2. ** obvious or conspicuous filling of the alloscutum.