Ticks are relatives of spiders, scorpions, and mites. As
such, their survival is dependent on a host (i.e., they're
parasites). Specifically, ticks feed on an animal's blood or
body fluids. The deer tick (Ixodes scapularis in the East &
Midwest, and Ixodes pacificus in the West) goes through many
stages during its lifecycle, and feeds on different species at
each point.
TICK LIFE
CYCLE
Ticks begin as eggs (stage 1) that hatch into 6-legged
larvae (stage 2).
Larvae live and feed on animals (mice, deer,
squirrels, livestock, and any humans who enter the
tick habitat) for about a week before detaching then
molting (shedding) anywhere from 1 week to 8 months
later.
The larvae then become 8-legged nymphs (stage 3). Nymphs
feed on animals, engorge for 3 to 11 days, detach, and molt
about a month later (depending on the species and environmental
conditions).
Once the nymph molts, it becomes an adult tick (male or
female). Ticks climb up grass and plants and hold their legs up
"sensing" and "looking" for their prey. Ticks are attracted to their
hosts by detecting carbon dioxide and heat through special organs
located on the first pair of the tick's legs (Haller's organs). When a
warm-blooded animal walks past, the tick can crawl onto them and begins
feeding. Ticks insert their mouths, attach to their prey, and engorge
themselves with a blood meal (stage 4). During feeding, tick saliva can
get into the host's body and blood stream. Any tick infected with
Borrelia burgdorferi can then inadvertently spread this bacteria to the
host.
Male and female ticks usually mate while attached to the host. A few
weeks later, the engorged female detaches from the host and lays her
eggs (1000 - 8000 eggs) on a leaf. A tick usually lives a year before
dying
They are back in force. For several years the populations of these
insects were down. Now it appears they have developed resistance to some
of the popular products used on the animals and have returned in full
force.
Control of these pest must be done as a concerted effort on the part
of the homeowner and the exterminator. All the areas must be treated for
control. The pets should be treated and maintained, the interiors and
any exterior areas regularly visited by the pets or the occupants must
also be treated.
Many products are available and based on what had been used, the
surfaces, and where the application will be made will determine what
type of product will be used. Most applications will also include the
use of growth regulators for long term control.