2/26/2024 0 Comments Silverback ticksThe following is a list of ticks found in the United States that are known to bite and transmit disease to humans: In some areas the nymphal tick infection rate is actually higher than the adult tick infection rate. While both hard and soft adult ticks are easiest to identify, it is important to note that nymphal ticks are equally capable of transmitting disease. The bite is typically painless and only lasts 15-30 minutes, making it harder to detect. Soft ticks’ life cycle lasts from months to years depending on the species. Nymphal soft ticks may go through as many as seven phases as nymphs, requiring a blood meal at each stage. Soft ticks (Argasidae), like hard ticks begin as an egg, hatch into a larva, feed and then molt into a nymph. The bite of a hard tick is generally painless, with a feeding process lasting several hours, to days, even weeks. The life cycle of hard ticks lasts one to two years depending on the species. Nymphal hard ticks then seek larger hosts, and after feeding drop off and molt into adults. After feeding it drops to the ground from the host and goes through a molting process, emerging as a nymph. Once the egg hatches a larva emerges that must then find and feed on a small mammal or bird (host). Hard ticks (Ixodidae) begin as an egg that is laid by an adult female tick. Hard ticks and soft ticks have different life cycles, growing larger and changing their appearance at each stage. Of the 700 species of hard ticks and 200 species of soft ticks found throughout the world, only a few are known to bite and transmit disease to humans. There are two families of ticks found in the United States: Ixodidae (hard ticks) and Argasidae (soft ticks).
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