University of Missouri Extension specialists said on Apr. 15 that ticks remain a threat throughout the year in Missouri, with activity peaking from June through September but possible on any warm and humid day.
Tamra Reall, horticulturist at University of Missouri Extension, said, “They can emerge from the shadows at any time they sense warmth.” According to Reall, tick activity typically increases during spring and peaks around June and July. Dogs and wildlife such as deer often carry ticks.
Emily Althoff, extension entomologist for University of Missouri and Lincoln University, said that Missouri is a hotbed for ticks—especially the lone star tick. She noted this species can cause alpha-gal syndrome, a meat allergy that may result in severe reactions like anaphylaxis. Althoff advised using tick repellents containing DEET all year round and recommended seeing a doctor if symptoms such as fever, rash or fatigue appear within two weeks after a bite.
Missouri is home to three main tick species that bite humans: the lone star tick (distinguished by a white dot on its back), American dog tick, and deer or blacklegged tick. The lone star tick is considered one of the most aggressive species in the state; adults and nymphs are active from early spring through midsummer while larvae remain active into fall.
Althoff said these ticks can be found not only in woods but also in tall grasses, weeds and bushy areas: “You can find the lone star tick in a lot of different places… It is not just in woods.” She explained that some species survive submersion for long periods due to specialized respiratory systems. Proper disposal methods include placing them in alcohol or sealing them before throwing away; crushing should be avoided to prevent exposure to infectious fluids.
Althoff also suggested taping found ticks onto an index card with date and location information for future reference if symptoms develop later. As hiking season approaches she recommends wearing light-colored clothing tucked into socks or pants; applying Environmental Protection Agency-approved repellents; inspecting oneself after outdoor activities; checking pets; staying on trails’ centers; removing clothing immediately after outings; drying clothes thoroughly; showering soon after returning indoors since attached ticks cannot be washed off easily.
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With ongoing research efforts—including studies on alpha-gal syndrome—experts encourage Missourians to stay informed about prevention methods as warmer weather increases outdoor activities.
