Recent research is finding scary amounts of a new tick in Staten Island (a borough of New York City). The Asian longhorned tick (or Haemaphysalis longicornis) was only discovered in NJ in 2017, and now it appears that it is spreading rapidly (Virginia, West Virginia, Arkansas, North Carolina, NY, Conn, Maryland, Pennsylvania). This tick is a native of east Asia (Japan, New Zealand, Australia, etc.), and transmits a number of diseases and infests livestock in eastern Asia.
It is especially worrisome because females can clone themselves. This is because the tick is a parthenogenetic species, meaning that the females can lay and hatch eggs without needing to mate with a male. Each offspring is essentially a clone of the mother tick. This means that they can be found on animals in really large numbers in varying stages - thousands of ticks on one animal. (The photos are horrifying.) The ticks feed on a wide range of mammals and birds, so it is expected to spread rapidly.
The authors of the study say that the ticks can tolerate a wide range of environmental temperatures ( 28°F to 104°F or −2°C to 40°C ), although they are most successful in moist, warm-temperate conditions. But note that the NYC metro area (which includes Staten Island) always, always has temperatures lower than that every winter! So... it can handle lower temperatures just fine. Unlike deer ticks, this tick can be found in the grass.
According to the CDC, as of March 25, 2019, no harmful germs have been found in the ticks collected in the United States. But researchers are worried about the possibility that soon they will carry the diseases commonly carried by ticks (Lyme, etc.) in the United States. If you find this tick on a person or pet - remove the tick as quickly as possible (the usual tick advice).
Excerpts from Science Daily: New Yorkers brace for self-cloning Asian longhorned tick
Staten Island residents have another reason to apply insect repellent and obsessively check for ticks this spring and summer: the population of a new, potentially dangerous invasive pest known as the Asian longhorned tick has grown dramatically across the borough, according to Columbia University researchers. And the tick -- which unlike other local species can clone itself in large numbers -- is likely to continue its conquest in the months ahead. ...continue reading "Be On the Lookout For This Tick"