There are 2 types of ticks, hard and soft. Hard
ticks have only one nymphal stage while soft ticks have more than
one. Some have up to eight.
They have eight legs like the spider.
They are most common in spring and late summer.
They are found commonly in transitional areas
between woods and meadows or mown and unmown grasses.
They are related to mites.
They have a complete life cycle, usually mate
on the host animal and the hard tick male dies after mating with
female. Eggs are usually laid in cracks or crevices.
The most common tick to our area is the American
Dog Tick. They lay 4000 to 6500 eggs usually in June or July which
then take 36 to 57 days to hatch.
FEEDING HABITS
Larvae and nymphs feed on small rodents and even lizards. Adults
seek larger mammalian hosts such as humans, sheep, cattle, dogs,
cats, etc.
The larva is capable of laying in wait for up
to 8 months without feeding, while adults can go 1 to 1/2 years
without food.
Blood is their main meal and both males and females
feed only on the blood of vertebrates.
Ticks can be classified by their feeding requirements.
There are single host ticks, two host ticks, three host ticks,
and multi-host ticks.
Most hard ticks are three host ticks in which
each of the three life stages leaves the host after engorging.
Most soft ticks are multi-host ticks.
Ticks sit on foliage or branches and wait for
a host to happen by, then they attach themselves to the host for
a blood meal.
VECTORS OF DISEASE
Ticks surpass all of the Arthropods in the number and variety
of diseases which they transmit to domestic animals. And only
mosquitoes transmit more diseases to humans.
Some of the diseases vectored by ticks include
Colorado Tick Fever, Rocky Mountain Spotted Fever, Lyme Disease,
Powassan encephalitis, Relapsing Fever, Endemic Typhus and many
others.
Ticks are also transmitters of a disease called
tick paralysis. A toxin from the ovaries of the tick is transmitted
to the victim as long as the tick is engorging. Symptoms include
a progressive paralysis from the legs upward and can result in
death for humans if the tick is not discovered and removed.
