Nymph and Adult Asian Long-horned Tick, Two Haemaphysalis longicornis on a US dime.

Let’s Not Get Hysterical. Yet.


The reporting on the spread of the invasive Asian Long-horned Tick, verges on the hysterical. “Vicious species of tick.” “Bloodthirsty hordes.” “Ravenous swarms.” Sounds like a lousy (sorry) Grade-B horror flick. But there are some scary aspects to this recently invasive species. First, unlike native North American ticks, this species can reproduce parthenogenetically; it can…