Western Massachusetts is characterized by forested landscapes, rolling hills, river valleys, and rural suburban communities that provide ideal habitat for ticks. Combined with humid summers, ample rainfall, and increasingly mild winters, these conditions allow tick populations to thrive from early spring through late fall, with some activity occurring whenever temperatures rise above freezing.
Ticks are commonly encountered by residents, hikers, pet owners, and outdoor workers throughout Berkshire, Franklin, and Hampshire counties.
The most common and medically significant tick species in Western Massachusetts.
Key traits:
Prefers wooded areas, leaf litter, and shaded yard edges
Nymphs are extremely small and most active in spring and early summer
Adult ticks peak again in fall
Known to transmit Lyme disease, anaplasmosis, and babesiosis
Frequently found in areas with deer and small mammal activity
Widespread throughout Western Massachusetts, particularly in open areas.
Key traits:
Most active from late spring through summer
Found in grassy fields, park edges, trails, and roadside vegetation
Primary vector for Rocky Mountain spotted fever in Massachusetts
Larger size makes it easier to detect on people and pets
Historically uncommon in Massachusetts but increasingly reported.
Key traits:
Adult females display a white “lone star” marking
Aggressive host-seeking behavior
Expanding northward due to warmer seasonal patterns
Known to transmit ehrlichiosis
Associated with alpha-gal syndrome, a red meat sensitivity linked to tick bites
