Editor’s Note: Progressive Charlestown carries a
permanent link to URI’s anti-tick program. You can see it near the top of the
page in the right-hand column.
Ticks are pretty much
a menace in Rhode Island. Last year, the tick population was the highest
recorded by the University of Rhode Island’s TickEncounter Resource Center, which dubbed 2012 the “tick-apocalypse.”
To make matters worse,
a new disease transmitted by the same tick that carries Lyme disease is now in
the Rhode Island. May also is considered the “tickiest” month of the year.
According to the Centers for Disease Control and Prevention (CDC), Lyme disease
is the most common and fastest-growing bug-borne infectious disease in the
United States.
Sam Telford, professor of infectious disease and global health infectious diseases at Tufts University, said there are several causes for the spike in Lyme and other tick diseases. An active aging population is more prone to contracting the illnesses, he said, but mostly “it’s suburbanization and the tremendous increases in deer herds."
Fortunately, Rhode
Island has one of the best tick programs in the country and one of the top tick
experts leading it, Thomas Mather. The URI professor and director of the center
for bug-borne diseases said it’s too soon to tell if 2013 will be as bad as
last year, when the five-year average climbed 116 percent for the tiny deer
ticks.
Young deer ticks will
hatch in the coming weeks, and if the weather is hot and humid they will
flourish again. If it’s cooler and drier, their numbers will drop.
Many of last year’s
ticks are still around, however. Adult dog and deer ticks that survived the
winter are the larger ticks present this time of year.
Ticks also are showing
up in more places in Rhode Island. With the exception of cities, nearly all of
Rhode Island — coastal and inland — has seen sharp increases in ticks. The
Warwick-East Greenwich area has experienced one of the largest increases, to
7.5 times normal.
Making matters worse
is a new disease (Borrelia miyamotoi) also transmitted by deer ticks. This new
disease came to light after an 80-year-old New Jersey woman became ill with
symptoms similar to Lyme disease, such as fatigue, memory and motor impairment,
and flu-like symptoms. There has been five cases reported in the Northeast
The treatment is
similar to Lyme disease. A study by the Yale School of Public Health and
Medicine showed that all of those infected had complete recoveries.
Should people stop
hiking or enjoying their backyards?
“What they should be
doing is stepping up their game," Mather said. His message for 2103
includes five action steps. One of the most important, especially for hikers
and campers, he said is to wear tick-repellent clothing. Anti-tick apparel is
made by L.L. Bean and REI, or needs to be applied to clothes with a spray.
The repellent contains
the pesticide pemethrin, which Mather said is safe, but is nonetheless
considered a carcinogen and suspected endocrine disruptor by the Pesticide Action Network.
According to TickEncounter, a hiker could wear 1,200 layers of treated clothing and still not reach a concentration considered unsafe by Environmental Protection Agency (EPA) standards.
According to TickEncounter, a hiker could wear 1,200 layers of treated clothing and still not reach a concentration considered unsafe by Environmental Protection Agency (EPA) standards.
Permethrin and the
pesticide bifenthrin also are recommended for spray and granular treatments
around homes. Bifenthrin is considered a developmental or reproductive toxin, a
possible carcinogen and a suspected endocrine disruptor. But the treatments use
“very low concentrations” of the pesticide and are typically applied in spot
applications instead of covering an entire yard, according to TickEncounter.
TickEncounter also trains applicators to apply the treatment.
Tick
tubes are also recommended
for keeping mice from spreading Lyme-carrying ticks. According to
TickEncounter, the tubes are eco-friendly, with low doses of permethrin. “There
really is no risk for environmental contamination, and a toddler would need to
consume more than a pound of treated cotton before there would be any chance
for toxicity,” according to TickEncounter.
Ticks live mostly
where yards border wooded areas, in ornamental plantings and gardens, or shaded
areas with leaves and high humidity. A path of woodchips or stone can provide a
barrier between tick habitat and a backyard.
Pet owners should also
be more careful about where they walk their dogs, Mather said. A brushy area
near a curb can attract dozens of ticks to a pet. The ticks are then carried
into a home.
Mather said every step
to reduce exposure helps reduce the risk of infection. And take action before
Memorial Day is especially effective, he said. “We’re trying to make it as easy
as possible for people to do something," Mather said. "Anything
implemented is going to lower the likelihood of getting the disease.”