Keeping Your Lawn From Bugging You

  • There's a movement to stop using pesticides and sprays on your lawn. (Photo courtesy of Horia Varlan CC-BY)

A lot of us have a love-hate relationship with our lawns. We love them when they’re lush. We hate them when they’re full of dandelions and dead patches. It’s easy to have someone come out and spray pesticides to take care of weeds and bugs. But some people say it’s not necessary and could do more harm than good. Rebecca Williams reports:

Transcript

A lot of us have a love-hate relationship with our lawns. We love them when they’re lush. We hate them when they’re full of dandelions and
dead patches. It’s easy to have someone come out and spray pesticides to take care of weeds and bugs. But some people say it’s not necessary and could
do more harm than good. Rebecca Williams reports:

So, you might be using pesticides on your lawn right now. And of
course, the pesticide industry says that’s okay.

The industry says the chemicals are safe to use on the lawn if you use
them correctly.

Alan James is president of Responsible Industry for a Sound
Environment, or RISE. It’s a trade group for pesticide companies.

“If individuals or professional applicators read the labels and follow
labels, the likelihood of misuse of pesticides is virtually zero because the
labels provide all the information a consumer or professional needs to
apply products both efficiently and safely.”

But the problem is, not everybody reads the label.

Alan James says if you’re hiring someone to spray your lawn you should
make sure they’re certified and insured. You should also take your kids’
and pet’s toys off the lawn before they spray.

But a lot of people say there’s no point in using chemicals just to make
your lawn look good.

Jay Feldman is with the group Beyond Pesticides. He says of the 30
most common lawn pesticides, most of them are suspected by the
Environmental Protection Agency to cause cancer, birth defects or other health problems.

“There’s a range of adverse effects that are indicated as a part of the
pesticide registration program at EPA. EPA knows this information.
Why not remove pesticides from the equation, especially in light of the
fact that they’re not really necessary?”

There’s a movement to stop using pesticides in North America. Both
Ontario and Quebec have banned the sale and cosmetic use of
pesticides.

So if you’re not going to use pesticides, what do you do?

That’s a question Kevin Frank gets a lot. He’s an extension agent at
Michigan State University and an expert on lawns.

“I love to mow my lawn on the weekends because nobody can call me on
the phone or email me with questions.”

He’s been showing me green, healthy test plots of grass and some that
look sad and neglected. The scientists here have been working to find
ways to have good-looking lawns without a lot of chemicals.

Back in his office, Kevin Frank says he tells people they shouldn’t be
afraid to experiment.

“Do you have it in you to let it go for one season and see what happens?
And it could be ugly, so you’ve got to be prepared for that!”

He says a healthy, dense lawn is actually really good at fighting off
weeds and pests all on its own. So, how do you get a healthy, dense lawn
without a lot of chemicals? Frank says it might take a couple years to get
there. And it means going against conventional lawn advice.

“We’ve done a great deal of research here at Michigan State that runs
contrary to what I call ‘turf dogma’. You know: water deeply and
infrequently – and we’ve shown if you do it on a more frequent basis you
end up with a healthier plan overall.”

He recommends watering lightly – just 10 minutes – every day instead
of soaking the lawn once a week. Frank says it’s also good to fertilize
twice a year, use a mulch mower, and mow high instead of giving the
grass a buzz cut.

He says that could make your lawn so healthy, it might mean you won’t
need to spray or hire someone to spray your lawn.

He says the biggest adjustment in reducing pesticide use is managing
your expectations, and deciding how many weeds and bugs you can live
with.

For The Environment Report, I’m Rebecca Williams.

Related Links

EPA Questions Pet Pesticides

  • The EPA plans to develop more stringent testing and evaluation requirements for both existing and new products.(Photo courtesy of Isiegert CC-2.0)

Tens of thousands of pets are getting sick when their owners use flea and tick pesticides the wrong way. The Environmental Protection Agency wants the companies to change the directions on the labels. Rebecca Williams has more:

Transcript

Tens of thousands of pets are getting sick when their owners use flea and tick pesticides the wrong way. The Environmental Protection Agency wants the companies to change the directions on the labels. Rebecca Williams has more:

EPA officials are concerned about spot-on pesticides for fleas and ticks – the drops you put on your pet’s back.

EPA has been investigating these products because of a recent huge jump in reports of negative effects on pets. Most are mild… such as skin irritation. But there have also been reports of vomiting, seizures and in some cases, death.

Steve Owens is with the EPA. He says these products are poisons. And he says the labels are not always clear.

“The consumers in many cases were left to guess for themselves the appropriate amount to be used on their particular pet.”

The EPA is working with companies to put more detailed directions on the labels.

In the meantime, Owens says you should be really careful about reading the directions. He says it’s especially important not to use dog products on cats.

For The Environment Report, I’m Rebecca Williams.

Related Links

Time to Eat the Dog?

  • Meredith Mull loves dogs. She owns five and works as a groomer. She's not getting rid of any of her pets to help the environment. (Photo by Julie Grant)

We’ve all heard about the
environmental problems our
gas-guzzling cars and trucks
cause. But some researchers
say our vehicles aren’t the
biggest energy hogs. The biggest
energy users actually live
in our homes. Julie Grant
reports about the new book
‘Time To Eat The Dog?’ about
the wasteful ways of our pets:

Transcript

We’ve all heard about the
environmental problems our
gas-guzzling cars and trucks
cause. But some researchers
say our vehicles aren’t the
biggest energy hogs. The biggest
energy users actually live
in our homes. Julie Grant
reports about the new book
‘Time To Eat The Dog?’ about
the wasteful ways of our pets:

Robert Vale is sorry. He didn’t set out to incriminate Fido. He and his wife Brenda Vale specialize in sustainable living at Victoria University in New Zealand. And they just wanted to see how much of the world’s resources it takes to do things like eat, work, play sports, and own pets.

“The thing that most surprised us, and was the most unexpected was the scale of the impact of pets – which was really, really high.”

Vale says a big dog, like a German Shepard, actually has a bigger ecological footprint than an SUV.

To measure the ecological paw-print of pets, the Vales looked at the ingredients in common brands of dried pet foods. Based on recommended portion sizes, they calculated that a medium sized dog would consume more than 3 ounces of dried meat a day. To get that much dried meat, the Vales found, it takes nearly a pound of fresh meat. Add that up each day, and they concluded a medium sized dog eats about 360 pounds of meat a year!

Robert Vale says raising that meat – beef, lamb and chicken – has an environmental impact.

“And we did the calculation based on a dog eating chicken, which is a fairly low footprint meat, rather than say beef, which is a fairly high footprint meat. So, we tried to bias it in favor of the dog. But it still came out really big. It was a big surprise, really.”

Vale says the dog takes more than 2 and a half times more energy and resources than building and driving an SUV 6000 miles a year.

These numbers aren’t just coming from the Vales.
The New Scientist Magazine asked the Stockholm Environment Institute in England to calculate a dog’s paw-print, and the findings were almost exactly the same.

But none of this really computes with dog-lover Meredith Mull. She doesn’t understand why Robert Vale would even look into this.

“He must not have a pet. He must not know what it’s like to be loved by an animal and take care of it and have it give you nothing but respect and loyalty and love. He must not know what it feels like.”

The Vales don’t have any pets. They used to have cats and other animals. But when they died, Robert Vale says they felt they shouldn’t replace them and use more of the world’s resources just to give themselves a little more comfort.

“We are increasingly pushing up to a question of limits. What can we have, what, everything. I think to some extent, that’s why it’s unpopular. We’ve all been brought up to believe that not only can we have more of everything, but it’s our right to have more of everything.”

But some people think the Vales are barking up the wrong tree.

Chetana Mirle works on global warming issues at the Humane Society of the United States. She says instead of blaming dogs, people should look at what they, themselves are eating – and how that contributes to environmental problems.

“So to me, I felt like, ‘are you kidding me?’ Um, we’re worried about our pets, and what our pets are eating instead of what we’re eating, and what our consumption is about – which has such a huge disproportionately large impact on climate change and the environment in general.”

It’s not that the researchers want people to blame dogs and cats instead of themselves. They say they just want people to understand that each choice we make – right down to whether we have pets – has an environmental impact.

For The Environment Report, I’m Julie Grant.

Related Links

Your Pet and Toxic Toys

  • The government does not regulate pet products at all. An environmental group looked at pet toys and found some were contaminated with lead. (Photo by Jessi Ziegler)

An examination of pet products
on store shelves found some of
them were contaminated. Lester
Graham reports there is currently
no regulation of toxins in pet
toys and other products:

Transcript

An examination of pet products
on store shelves found some of
them were contaminated. Lester
Graham reports there is currently
no regulation of toxins in pet
toys and other products:

Your puppy’s chew toy might be poisoning him.

The government does not regulate pet products at all. An environmental group looked at pet toys and found some were contaminated with lead.

Mike Shriberg is with the Ecology Center.

“We found over a quarter of pet products had detectable levels of lead in them. Over 7% would have been recalled if they were children’s products.”

Signs of lead poisoning in dogs can be more aggressiveness – even toward the pet’s owner – or withdrawn behavior.

So, how do you tell whether your pet’s toy or bedding is safe?

“There’s no real way to tell. Our data base, healthystuff-dot-org is a first step. But, remember, we only tested a small percentage of the millions of pet products out there.”

Shriberg’s group is calling for the government start doing something to stop toxic chemicals such as lead from being used in pet products.

For The Environment Report, I’m Lester Graham.

Related Links

Pet Pythons on the Loose in Florida

  • JD Willson holding a juvenile python. (Photo by Samara Freemark)

Foreign animals that get released
in the wild usually don’t spark that
much interest. But when that species
is a giant snake, well, most people
sit up and take notice. That’s the
problem facing the state of Florida,
where Burmese pythons have moved in
to Everglades National Park. Now,
scientists are trying to figure out
if the snakes could spread to the
rest of the country. Samara Freemark reports:

Transcript

Foreign animals that get released
in the wild usually don’t spark that
much interest. But when that species
is a giant snake, well, most people
sit up and take notice. That’s the
problem facing the state of Florida,
where Burmese pythons have moved in
to Everglades National Park. Now,
scientists are trying to figure out
if the snakes could spread to the
rest of the country. Samara Freemark reports:

Meet South Florida’s newest invasive species – the 20 ft long, 200 lb,
Burmese python.

“They’re impressive animals. They’re really impressive animals. And
they’re breeding
like crazy out there.”

That’s python researcher JD Willson. He says the pythons probably started
off as pets –
until their owners got bored of them and dumped them in the Everglades. Now
those pets
have procreated their way into a huge wild population.

“Certainly thousands. Certainly tens of thousands. Some people have gone
as far as to
say hundreds of thousands.”

Willson says most pythons won’t attack humans. But they do pose a big
threat to local
ecosystems.

“These are snakes that are top predators. They eat alligators, they got a
bobcat record, a
couple of white tail deer. These are a predator that native wildlife are
just not prepared to
deal with. They’re not used to having a giant snake around.”

Florida lawmakers are considering putting a bounty on the pythons – paying
hunters to
kill them. And people in neighboring states just have their fingers crossed
that the
pythons won’t spread north.

But no one really knows enough about the snakes to come up with a good
control plan.

Willson and some other researchers are trying to change that.

“This is the python enclosure.”

They’ve built a little artificial habitat in South Carolina, surrounded
it with a really tall
wall, and filled it with 10 pythons. The researchers want to learn more
about how the
snakes behave in the wild, and see if they can make it through a winter
with freezing
temperatures.

(sound of door opening)

The snakes are tagged with radio transmitters, so the scientists can track
them and record
data on how they’re doing.

Freemark: “It’s safe to be in here?”

Bower: “Oh yeah, they’re not aggressive.”

Inside a student volunteer, Rick Bower, is tracking the snakes with a radio
receiver.

“As you sweep it across, you can see how the signal strength changes and
you get an idea
of where the strongest signal is coming from.”

The receiver tells us we’re basically standing right on top of one of the
pythons.

“Yeah, he’s right at our feet. Yeah, he’s down there.”

But we don’t see anything, even when Willson starts jabbing a stick at
the source of the
beeping.

“Somewhere within an 8 foot radius of where we are, there’s an 11 foot
snake. And he’s
hiding in this aquatic vegetation. And not only can we not see him, but
poking in the
vegetation doesn’t seem to be eliciting too much of a reaction.”

He’s a really sneaky snake.

Whit Gibbons is also working with the crew. He says that if the scientists
have so much
trouble tracking down their pythons, in an enclosed cage, using radio
transmitters –
there’s no way bounty hunters could make even a dent in the Everglades
python
population.

“So they find a hundred, so what. There’s a hundred thousand left. No
one’s going to find
100,000. I mean, we’ve got ‘em in a small enclosure, 10 big snakes,
over 75 feet of snake
if you add them up. And you can’t find them.”

Instead, Gibbons says people could opt for a harm reduction strategy- focus
on limiting
the spread of the snakes, try to protect species they threaten.

“One position is, ‘okay, they’re here, here’s what they can do to
us, or to our pets, or to
the wildlife. Let’s learn to live with them.’”

The South Carolina python study ends next summer. JD Willson says he’s
not sure what
they’ll do with the snakes afterwards. But he does know one thing –
they’re not going to
release them back into the wild.

For The Environment Report, I’m Samara Freemark.

Related Links

Abandoned Pet Pythons Invade Everglades

  • Large Burmese pythons are now regularly encountered along trails and visitor areas in the park (Photo courtesy of the National Park Service)

A python native to Asia is popping up in one national park. Kyle Norris reports:

Transcript

A python native to Asia is popping up in one national park. Kyle Norris reports:

The Burmese Python is showing up in Everglades National Park in Florida.

That’s because people who no longer want their pet pythons are releasing them there.

Now these babies are big — usually they between 6 to 12 feet long. And there could be as many as 150,000 pythons in the Everglades.

The snakes are not so much a threat to humans. But they are a threat to animals – especially to endangered ones.

Scott Hardin is an exotic species coordinator. He’s with the Florida Fish & Wildlife Conservation Commission.

“You just got a great big snake, nothing like it, nothing analogous in the native snake fauna in Florida. So it opens up a whole new range of prey that was not susceptible before.”

He says officials are brainstorming ways to deal with the problem.

They’re trying to rig up some really big traps. And they’ve also thrown out the idea of a bounty — basically a cash reward for catching the snakes.

For The Environment Report, I’m Kyle Norris.

Related Links

City Chickens and Urban Eggs

  • Linda Nellet brought a few of her birds to a backyard-chicken seminar in Chicago. She and other seasoned urban chicken keepers hope to keep chicken-raising legal and neighborly in their tight, urban landscape. (Photo by Shawn Allee)

Maybe it’s easy to imagine chickens
cooing and clucking on American farms, but
how about in big-city backyards? Well,
keeping chickens is legal in the nation’s
three largest cities, but in one of them,
chicken-lovers nearly lost that right.
Shawn Allee tells how some urban
chicken-keepers were nearly caught off guard,
and how they plan to keep their chickens in
the coop:

Transcript

Maybe it’s easy to imagine chickens
cooing and clucking on American farms, but
how about in big-city backyards? Well,
keeping chickens is legal in the nation’s
three largest cities, but in one of them,
chicken-lovers nearly lost that right.
Shawn Allee tells how some urban
chicken-keepers were nearly caught off guard,
and how they plan to keep their chickens in
the coop:

No one’s sure how many chickens are in Chicago’s backyards. But honestly, few people
thought about it until last year.

That’s when one woman showed up at a city hearing.

“Hi. My name is Edie Cavanaugh, and I’ve lived in Chicago, since 1968.”

Cavanaugh told aldermen she’d caught messy, noisy chickens clucking around her
neighborhood.

She was stunned the city wouldn’t round them up.

“I was told chickens are permitted as pets in Chicago, and I said that’s impossible,
this is a city.”

Cavanaugh’s story ruffled plenty of feathers.

You see, even some aldermen didn’t know that keeping chickens as pets or for eggs in
Chicago is okay.

“I was riding down the street, and I seen a rooster. I was like, ‘What is this?’”

For a month, it seemed Chicago’s city council would ban chicken-keeping.

People who already had chickens worried their birds were destined for the stew pot.

But Chicago aldermen kept chicken-raising legal.

Chicago’s pro-chicken contingent saw the fight as a wake-up call. Some figured, if they
wanted to keep birds, they’d better police themselves.

“So, welcome everybody for coming to the first-ever Chicago backyard Chicken
workshop.”

Martha Boyd is starting seminars about urban chickens.

She’s part of the Angelic Organics Learning Center, a group that promotes urban
agriculture.

Boyd is confident city-people can raise more of their own food if they’re neighborly
about it.

“So the idea of the backyard chicken workshop is so we can have this thing grow
without creating more problems and potentially, then, having the backlash to the
backyard chickens.”

For this first seminar, Boyd invited chicken-raising veterans to a church basement.

One is Tom Rosenfeld.

His advice to urban chicken lovers? Talk to your neighbors. And, hey, if they cringe, get
creative.

“It also helps to bribe them, because if they think they’re going to get some eggs out
of the deal or they think they’re kids come over and pet them or whatever, then of
course they’ll be a little more understanding when one day you leave the door open
and there’re chickens running around the yard or other issues.”

Rosenfeld says those ‘other issues’ arise pretty quickly. In fact, just a few hours after
chickens eat.

“A lot about chicken keeping is about poop because they do it a lot. They do it in
surprisingly large quantities at a time.”

Rosenfeld says you can literally get ankle deep in the stuff if you’re not vigilant.

But bribery helps here, too. Rosenfeld says chicken poop makes excellent garden
compost.

“Our neighbors love it. They’ll come by with a bucket and that’s their way of
participating.”

Rosenfeld says the last issue that ticks off neighbors is noise.

There’s no such thing as a chicken muzzle, but there’s still a solution – and there’s no
bribe necessary.

You see, male chickens are the noisy bunch, so if you just want eggs…

“You don’t need a rooster. It’s a sad reality as a male chicken keeper to realize that
roosters aren’t necessary. They’re only necessary if you want chicks.”

Rosenfeld says urban chicken-raising could catch on where it’s legal – if people keep a lid
on noise and smells.

As for places where it’s not legal?

You might want to change the law at city hall – just don’t try to bribe your alderman with
fresh eggs.

For The Environment Report, I’m Shawn Allee.

Related Links

Kittens and Climate Change

  • Climate change is making cats' breeding season longer, resulting in more kittens taken to shelters (Photo courtesy of the US Humane Society)

Every year between three to four million
dogs and cats in the US are euthanized in
shelters. That’s according to the American
Society for the Prevention of Cruelty to Animals.
That’s because no one will take them in. Kavitha
Cardoza reports the
warmer temperatures caused by climate change are
making the problem of too many cats worse:

Transcript

Every year between three to four million
dogs and cats in the US are euthanized in
shelters. That’s according to the American
Society for the Prevention of Cruelty to Animals.
That’s because no one will take them in. Kavitha
Cardoza reports the
warmer temperatures caused by climate change are
making the problem of too many cats worse:

It takes just one cc of sodium pentobarbital and a few seconds to turn this…

(sound of cat mewing)

into this…

(silence)

Each year about twice as many cats as dogs are killed.

(sound of dogs barking)

At the Washington Humane Society Shelter there’s a large whiteboard with instructions
scrawled on it. Kittens “Rice and Gravy” need socializing. The dog Clint Eastwood
does not like other dogs.

Some animals are put down because they have medical problems. Others because
they’re aggressive. But, the main reason is there are just too many of animals and not
enough homes willing to adopt them.

It’s a year round problem, but Spring – around April, begins what’s called the “kitten
season.” Michelle Otis, head of the shelter, says that’s been changing.

“We’re finding that starts earlier every year with the climate change. We’re starting to
see large litters come in as early as February now.”

That would start to slow down in September, but now with warmer winters, it’s
continuing until December.

Otis says on a busy day they get what she calls “an avalanche” of kittens – about 100 a
day – some weighing less than a pound with their eyes still closed.

No one at this shelter wants to euthanize more kittens or puppies.

The only solution they see is to get more people to spay or neuter their pets. But that’s
not easy.

(sound of Jeep stopping and door closing)

Paul Hibler is an animal control officer in Montgomery County Maryland. He’s
responding to a complaint call.

(knocking on door)

Officer: “Hi is victor home?”

Lady: “He’s working.”

Officer: “Does he still have dogs?”

While he waits to get the owner on the phone, Hibler walks to the backyard and points
out the 6 large pups crowded in a small space. They’ve all got “cherry eye” or a red
inflammation of the eyelid.

“This is typical of someone who doesn’t understand the importance of spaying and
neutering. I think he just assumed well if the dog became pregnant she’ll have a couple
of pups and ill be able to find homes for them. And lo and behold she had 10 times the
number he thought.”

Hibler says overpopulation could easily be controlled if people would spay and neuter
their pets.

There are many reasons why pet owners don’t get their pets ‘fixed’. Often it’s the cost.
Sometimes they don’t know where to go. But it’s also myths people believe, such as
“my pet will become fat” or “not as affectionate.”

There are some owners who come to the shelter again and again with litter after litter.
That’s despite offers to spay their pets for free. It’s a huge financial burden for shelters.
And it’s an emotional burden for the people who work there.

Diana Foley at the Washington Humane Society says no matter how many times she’s
been present when an animal is euthanized, it’s never gets easier.

“Each time that you’re faced with that decision, and you’re in that moment, and you’re
thinking how can you make him have a good end. And you’re petting them and holding
them and kissing them and touching them, talking to them and you’re saying how can
you make that animal’s last moments peaceful.”

And with climate change making the breeding season longer, the animal shelter workers
are finding their spending even more “last moments” with unwanted animals.

For The Environment Report, I’m Kavitha Cardoza.

Related Links

Keeping Your Lawn From Bugging You

  • There's a movement to stop using pesticides and sprays on your lawn (Photo by Ilja Wanka)

A lot of us have a love-hate relationship
with our lawns. We love them when they’re lush.
We hate them when they’re full of dandelions and
dead patches. It’s easy to have someone come out
and spray pesticides to take care of weeds and bugs.
But some people say it’s not necessary and could
do more harm than good. Rebecca Williams reports:

Transcript

A lot of us have a love-hate relationship
with our lawns. We love them when they’re lush.
We hate them when they’re full of dandelions and
dead patches. It’s easy to have someone come out
and spray pesticides to take care of weeds and bugs.
But some people say it’s not necessary and could
do more harm than good. Rebecca Williams reports:

So, you might be using pesticides on your lawn right now. And of
course, the pesticide industry says that’s okay.

The industry says the chemicals are safe to use on the lawn if you use
them correctly.

Alan James is president of Responsible Industry for a Sound
Environment, or RISE. It’s a trade group for pesticide companies.

“If individuals or professional applicators read the labels and follow
labels, the likelihood of misuse of pesticides is virtually zero because the
labels provide all the information a consumer or professional needs to
apply products both efficiently and safely.”

But the problem is, not everybody reads the label.

Alan James says if you’re hiring someone to spray your lawn you should
make sure they’re certified and insured. You should also take your kids’
and pet’s toys off the lawn before they spray.

But a lot of people say there’s no point in using chemicals just to make
your lawn look good.

Jay Feldman is with the group Beyond Pesticides. He says of the 30
most common lawn pesticides, most of them are suspected by the
Environmental Protection Agency to cause cancer, birth defects or other health problems.

“There’s a range of adverse effects that are indicated as a part of the
pesticide registration program at EPA. EPA knows this information.
Why not remove pesticides from the equation, especially in light of the
fact that they’re not really necessary?”

There’s a movement to stop using pesticides in North America. Both
Ontario and Quebec have banned the sale and cosmetic use of
pesticides. And Home Depot in Canada recently said it will stop selling
traditional pesticides all together by the end of the year.

So if you’re not going to use pesticides, what do you do?

That’s a question Kevin Frank gets a lot. He’s an extension agent at
Michigan State University and an expert on lawns.

“I love to mow my lawn on the weekends because nobody can call me on
the phone or email me with questions.”

He’s been showing me green, healthy test plots of grass and some that
look sad and neglected. The scientists here have been working to find
ways to have good-looking lawns without a lot of chemicals.

Back in his office, Kevin Frank says he tells people they shouldn’t be
afraid to experiment.

“Do you have it in you to let it go for one season and see what happens?
And it could be ugly, so you’ve got to be prepared for that!”

He says a healthy, dense lawn is actually really good at fighting off
weeds and pests all on its own. So, how do you get a healthy, dense lawn
without a lot of chemicals? Frank says it might take a couple years to get
there. And it means going against conventional lawn advice.

“We’ve done a great deal of research here at Michigan State that runs
contrary to what I call ‘turf dogma’. You know: water deeply and
infrequently – and we’ve shown if you do it on a more frequent basis you
end up with a healthier plan overall.”

He recommends watering lightly – just 10 minutes – every day instead
of soaking the lawn once a week. Frank says it’s also good to fertilize
twice a year, use a mulch mower, and mow high instead of giving the
grass a buzz cut.

He says that could make your lawn so healthy, it might mean you won’t
need to spray or hire someone to spray your lawn.

He says the biggest adjustment in reducing pesticide use is managing
your expectations, and deciding how many weeds and bugs you can live
with.

For The Environment Report, I’m Rebecca Williams.

Related Links

Allergies: Are We Too Clean?

  • This label on a package of cookies has six foods of the Big Eight. Over 90 percent of food allergies are caused by just eight foods: milk, eggs, peanuts, tree nuts such as almonds, soy, wheat, fish and shellfish. (Photo by Lester Graham)

Doctors say problems with allergies are
increasing. Up to 30% of Americans are
allergic to something. Rebecca Williams reports
doctors are trying to figure out why allergies are
on the rise:

Transcript

Doctors say problems with allergies are
increasing. Up to 30% of Americans are
allergic to something. Rebecca Williams reports
doctors are trying to figure out why allergies are
on the rise:

Micaela Keller is ten years old. Her world is full of things that might
make her sick.

“I’m allergic to pollen, ragweed, anything in the daisy family, nuts, all
nuts, dairy, soy, cats and grass.”

Food allergies are usually the worst allergies. Micaela says she knows
right away if she accidentally eats something she’s allergic to.

“When I have soy I will get really itchy and might get red in the face. My
lips might start swelling up or something.”

In the worst cases… allergic reactions can make it hard to breathe.
Sometimes, your airways can shut down, your blood pressure can drop and you
can die.

Experts say cases of food allergies have doubled over the past 10 years.
Kids have seen the highest increases. But no one knows exactly why.

Dr. Marc McMorris treats kids’ allergies. He’s in charge of the Food
Allergy Clinic at the University of Michigan.

He says our immune systems are so complex that there’s probably not a simple
explanation. He says there are probably at least three different things
going on.

First, allergies run in families. If both parents have allergies, there’s a
70 to 80% chance their child will have allergies.

Second, there’s the way we process food in this country. Take peanuts for
example. Dr. McMorris says dry roasting peanuts makes them more likely to
cause reactions.

Then… there’s the third thing and it’s really causing a lot of debate.
It’s called the hygiene hypothesis. The idea is: we might be too clean for
our own good.

“The immune system is put there for survival, to fight
bacteria, viruses and parasites and that type of thing and in the last 50 to 80
years we’ve had antibiotics, vaccines and a much cleaner world, and if the
immune system doesn’t have to worry about those issues as much it’s going to
find something else to do.”

So… instead of constantly fighting off bacteria… the immune system
thinks something as harmless as a peanut butter sandwich… is going to hurt
the body. So the immune system treats the peanut butter like an invader.

Dr. McMorris says there’s evidence that the more germs you’re exposed to
early in life, the less likely you are to have allergies. He says it
doesn’t make sense to go back to a dirtier lifestyle. But he says we should
be careful about some things… like not over-using antibiotics and harsh
antibacterial soaps.

He also says being exposed to some kinds of bacteria might help. He says
there’s evidence that having pets in the house might make you less likely to
develop allergies.

“The data for pets would say if you have three or more cats or dogs within a
household that you have a lower risk for allergies.”

That’s because you’re exposed to a certain bacteria animals carry. It might
help your system fight off allergies.

But Dr. McMorris says it’s not a good idea to rush out and get a litter of
kittens if you already have allergies in the family. That could make the
problem a lot worse.

Remember Micaela, the girl with all the allergies? Her mom thinks having
pets in the house does help.

(Joy to dogs: “Say hi. High five!” dogs bark)

Joy Keller says her kids have grown up with dogs. They’ve been tested and
it turns out they’re not allergic. So their doctor said they should keep
the dogs. Keller says they just have to vacuum more often.

“We’ve been told right from the beginning, keep where they sleep clean but
don’t be obsessive about cleaning, they have to live in this world and so
the world is not a sterile place.”

The world is not a sterile place. But maybe… we’re trying to make it a
little too sterile.

For the Environment Report, I’m Rebecca Williams.

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