Ticks in Oregon

Ticks in Oregon

Ticks in Oregon thrive in the East of the Cascades and Southern Oregon. They are most common in the lands along Catherine Creek, Rogue River, and Dog Mountain. The Ticks are most active in May, June, and July. You can see the ticks active in the moist regions of the above-mentioned areas in the spring and early summer. Both adult and immature ticks can transmit diseases, but they require at least 24 to 48 hours to stick to the host and spread diseases. This blog will provide you with valuable information about the types of ticks in Oregon.

Types of Ticks in Oregon

Rocky Mountain Wood Tick: 

The Rocky Mountain Wood tick is part of the Ixodidae family. These ticks use various stimuli to find their hosts, such as carbon dioxide, humidity, light, and temperature. The male adult Rocky Mountain Wood tick consumes less than that of their female counterparts. The adult female ticks feed for five to fifteen days. They copulate during feeding. The females then lay their eggs on moist soil. These ticks are reddish-brown or brown. Both the male and female are pear-shaped and flat. These ticks are vectors of Colorado tick fever, Tularemia and Rocky Mountain Spotted Fever.

Western Black-legged Tick

The Western Blacklegged tick or Deer Ticks is the most common type of ticks in Oregon and is known for carrying Lyme disease. (Lyme disease has common symptoms such as rash, fever, headache, etc. This treatment involves the usage of antibiotics. But if left without treatment, this disease could have long-term effects on the patient.)

The Western blacklegged ticks are brown and have two brown torsos. They can also spread other diseases; such as Anaplasmosis, human babesiosis, powassan virus, and human granulocytic ehrlichiosis. These ticks are active from April to September. Deer ticks thrive in regions such as thick and tall grass, mammal habitats, and areas with high humidity and moisture.

American Dog Ticks:

American Dog Ticks thrive in various parts of the United States. In Oregon, these ticks are on the rise. The most vulnerable animals to getting bit by these ticks are dogs. But this does not mean that they may not bite humans. These ticks do bite humans, livestock, and horses. The American dog ticks can also spread diseases such as tularemia and Rocky Mountain Spotted Fever. They can cause tick paralysis in humans and canines. 

The rocky mountain tick most of the time thrives in grasslands, woods, crevices, and long grass regions. This is why prevention of ticks includes cleaning the yard of the woods and cutting the grass.

Brown Dog Ticks:

These ticks are reddish-brown and they may prefer biting dogs. The females are just ⅛ inch and the male are much smaller. The female brown dog ticks due to feeding engorge much larger in size while the males do not engorge. If you are looking for an infestation of brown dog ticks in your dog look between their toes, legs, and ears, These ticks require warm and dry climates. 

The Brown Dog ticks also survive indoors, which means they can live inside their homes during all phases of the life cycle. The females may lay eggs in the crevices and cracks in the doors, the window frames, etc.

How To Prevent Ticks in Oregon?

CDC has come up with certain preventive measures to help you prevent yourself from tick bites, tick infections, and of course, tick diseases. Deschutes County has come up with those preventive measures for the state people to prevent tick diseases. Some of the highlighted preventive measures are given below.

  1. Knowledge about where to find ticks
  2. Have a tick checklist before your outdoor adventure.
  3. Treat with 0.5% permethrin.
  4. Use EPA registered insect repellents.
  5. Prevent tick contacts.
  6. Shower immediately after going outdoors.


Ticks live in various parts of Oregon. They thrive next to the river and creeks in Oregon. Tick encounters are minimized by following protective measures such as using repellent creams and protective equipments. Ticks are dangerous in the state of Oregon as they carry multiple diseases. Extermination could be an option if one lives in a tick-prone region. Follow preventive measures as advised by CDC and ask government assistance if something gets serious.