Types of Ticks on Martha's Vineyard

Deer Ticks or Black-Legged Tick

Diseases Carried: Lyme Disease, Babesiosis, Anaplasmosis, Powassan Virus, Tickborne relapsing fever

Approximate Sizes (larvae, nymph, adult male, adult female): 

American Dog Ticks

Diseases Carried: Tularemia, Rocky Mountain Spotted Fever

Approximate Sizes (larvae*, nymph*, adult male, adult female): 

*Larvae and nymph stage Dog ticks rarely if ever bite humans.

Lone Star Ticks

Diseases Carried: Ehrlichiosis, Southern tick-associated rash illness (STARI), Tularemia, Bourbon virus*, Heartland Virus*; believed to cause Alpha-gal Syndrome

* Most cases of Bourbon Virus or Heartland Virus are reported from Midwestern and Southern United States

Approximate Sizes (larvae, nymph, adult male, adult female):