Spinose ear tick mainly pathogenic in which of the following stage

Spinose ear tick is mainly pathogenic in Larval stage, Nymphal stage and Adult stage.
Otobius megnini, also known as the spinose ear tick, is a soft-bodied tick that is only parasitic in the larval and nymphal stages. As its common name suggests, the spinose ear tick's parasitic forms are usually found within the ears of the definitive host.
Spinose ear ticks are a constant source of annoyance and irritation for their definitive hosts. Their tendency to occur in large numbers can cause ulceration of the inner ear, high sensitivity of the ears, large amounts of blood loss, and even deafness.