Ticks: Impact of Infestation in Hosts
Some species may lead to paralysis or even to death as a consequence of the activities of the different compounds in the saliva.
Engorging ticks may lead to considerable loss in body weight and/or milk production of infested animals. E.g., noninfested cows produced per day 2.81 l more milk than those infested with Rhipicephalus (syn. Boophilus) microplus. This effect is apparently based on a 9 ml milk loss per attached tick.
Loss of money due to damages at the biting sites which diminish quality of hides used for shoes, etc.