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Comparing a chamomile-treated dead tick (a) with a non-treated live tick (b). Tick inoculated with chamomile flowers’ extract shows the major signs of death including a dark cuticle, immobilized Malpighian tubes, and haemorrhagic swelling skin lesions (arrows). In non-treated live tick, the colour of cuticle is normal and motile Malpighian tubes are easily visible (arrows). Egg laying is stopped for dead tick (a), while it is normal for live control tick (b)
