Author: Bob Allen

Bird and Fish Poisoning Spreads in Great Lakes

  • Botulism is killing fish and the shorebirds that eat them. The cause is likely due to a disruption in the ecosystem by invasive zebra and quagga mussels. (Photo by Lester Graham)

A deadly toxin is killing fish and birds along the Great Lakes shoreline.
Researchers think type-E botulism works its way up the food chain from
the bottom of the lake through several invasive species. Bob Allen
reports:

Transcript

A deadly toxin is killing fish and birds along the Great Lakes shoreline.
Researchers think type-E botulism works its way up the food chain from
the bottom of the lake through several invasive species. Bob Allen
reports:


These days, Ken Hyde dreads walking the pristine sandy beaches along
the Sleeping Bear Dunes. He’s the biologist in this national lakeshore
along the Michigan coast, and he only has to hike maybe a hundred feet
to find a dead bird twisted head down and half-buried in the sand:


“This is a cormorant. Just in the last two or three weeks we’re
starting to see a lot more of them. So they’re probably starting to
migrate down from the upper parts of the lake.”



Last year botulism killed over 2,500 dead birds along this 35 mile stretch
of shoreline, mostly gulls and diving ducks, including nearly 200 loons
migrating south from Canada.


This year the die-offs started earlier in the summer and struck more
species. The park lost four endangered piping plovers. The National Park
Service brought in a research team from Minnesota to look for answers.
They’ve been diving in the lakeshore now for two years.


What they’ve found is a huge shoal stretching more than a mile off shore.
It’s covered with native green algae and loaded with invasive zebra and
quagga mussels:


The Park’s research boat docks at a small village along Lake Michigan.
Dive team leader Brenda Moraska Lafrancois was surprised when she
first saw the underwater landscape:


“Last year when we first dove this area we went down and it was
shocking how little of the biomass down there was native. I think
we’re looking at a really altered system.”


Here’s what researchers know so far. The mussels filter nutrients from
the water, the clearer water allows more sunlight to reach the bottom, and
that spurs more algae growth. For good measure, the mussels excrete
phosphorus, in effect fertilizing the algae in the near shore zone. When
millions of mussels and big globs of algae begin to decompose, that uses up
most of the oxygen in water near the bottom of the lake, and that’s a
condition just right for a naturally occurring botulism to grow.


So how does the botulism migrate from the bottom to the surface and
poison shorebirds? Enter the round goby. It’s a small invasive fish that
comes from the same Caspian Sea area where zebra mussels originated.


Last year the research team at Sleeping Bear saw gobies in some places.
Now, says Byron Carnes, everywhere they looked when diving on algae
beds there solid sheets of mussels and blankets of gobies, and he
watched them feeding on mussels:


“Part of the zebra quagga mussel that is the juiciest these guys tend
to go right in and do this frenzy feeding where they just come in and
start pounding away at all the broken shells and trying to get out as
much of the good stuff inside the quagga mussel as they possibly
can.”


Mussels don’t have a nervous system, so they aren’t harmed by botulism
toxin. But when gobies get a dose they flop around on the surface for a
day or so while succumbing, and that’s when shorebirds pick up an easy
but potentially deadly meal.


Some diving ducks may also get poisoned by feeding directly on the
mussels. That’s the theory most scientists in the field think explains
what’s happening, but Harvey Bootsma says it’s not active all the time, so
it’s hard to prove each step. He’s with the Great Lakes Water Institute in
Milwaukee:


“I think the problem is it’s usually a sporadic and short-lived event
when this occurs. And unless somebody happens to be fortuitously
collecting the right samples at the right place and the right time it”s
very difficult to pin down the process as it’s occurring.”



While researchers try to pin down the effects of invasive species in one
place, the cycle spins off somewhere else. This fall there are half as
many dead birds along the Sleeping Bear Dunes shore as last year, but
the die-off is now spreading farther north along the Lake Michigan coast,
and there have been similar outbreaks along Lakes Erie and Huron.


So far Harvey Bootsma says there are no good solutions to break the
cycle of algae, mussels and gobies that scientists think is transporting
botulism toxin to shorebirds.


“And it’s just a great example of how huge an impact a new species
can have on an ecosystem. And I think it makes it all the more
imperative that we try to stem the tide of exotic species coming into
the Great Lakes.”


Researchers say it may take decades for the Great Lakes to recover from
the effects, if they ever do.


For the Environment Report, I’m Bob Allen.

Related Links

Indian Treaty 2.0

Five Indian tribes claim the right to hunt, fish and gather on lands
and lakes they sold to the federal government years ago. Their
claim extends back to the Treaty of 1836. But it’s been
challenged in court by state officials who say those rights expired
long ago. As Bob Allen reports, now all the parties have reached
an uneasy compromise:

Transcript

Five Indian tribes claim the right to hunt, fish and gather on lands
and lakes they sold to the federal government years ago. Their
claim extends back to the Treaty of 1836. But it’s been
challenged in court by state officials who say those rights expired
long ago. As Bob Allen reports, now all the parties have reached
an uneasy compromise:


170 years ago, the tribes sold millions of acres to the U.S.
government. But they reserved for themselves the right to hunt
fish and gather foods and medicines until the land was settled.


Hank Bailey is an elder with the Grand Traverse Band of Ottawa
and Chippewa. He’s scouting out a favorite fall hunting spot
even though it’s pelting rain:


“I know these hills well all around here just from exploring
it…hunting, gathering mushrooms…”


Bailey is a direct descendant from a tribal leader who signed the
original treaty. He says the exercise of those rights in times past
were the difference between survival and starvation. And he
doesn’t think a new piece of paper can ever erase what his
ancestors preserved:


“They were told that this treaty was forever. And I know in
my heart that’s what they believed in. And they thought well
as long as we can hunt, fish and gather we will be able to
survive as a people. This is what bothers me about is, I’m
being told now that when we sign this paper, this is going to
be forever and here we go again.”


Four years ago, the state of Michigan went to court to argue tribal
hunting and fishing rights had expired because the land had been
settled long ago.


But then state officials noticed court rulings in other Great Lakes
states that upheld treaties and in some case awarded tribes as
much as half of the natural resources.


Tribal leaders thought they had a strong case, but they too were
leery of how today’s courts might interpret the phrase that said
their treaty rights exist “until the land is settled,” so the parties
were motivated to negotiate a deal outside court.


Jim Ekdahl is with the state Department of Natural Resources:


“We were in a strange kind of legal limbo where the state
wasn’t exactly sure what the ground rules should be in
light of the fact the federal courts hadn’t ruled on the inland
rights. The tribes weren’t 100% confident that they could
advise their membership in terms of what they ought to be
doing.”


From legal limbo, there are now 130 pages of rules and
regulations on how and where the tribes can exercise their rights.
There’s been some grumbling on both sides.


Some tribal members complain, with some exaggeration, that they
have to fill out a form now before they can pick a single
blueberry, and there are sportsmen who don’t like a special set of
rules for Indians.


What the tribes have agreed to is their rights to hunt, fish and
gather will only apply on lands open to the public. And they only
can take enough for subsistence, not for commercial sale.


Tribal resource managers say what their members take is a drop
in the bucket of the overall resource. And Jim Ekdahl with the
state says there’s still plenty to go around:


“There’s sufficient harvestable surpluses of resources
available to accommodate tribal interests. There’s essentially
no effect on harvest by state licensed recreational users. And
essentially no changes in state regulations are gonna be required as this
thing moves forward.”


The parties to the agreement say is it avoids a bitter legal battle
that could last a decade or more and cost millions of dollars.
Both sides remember an ugly dispute that raged 30 years ago
when tribes reasserted their right to fish commercially with nets
in the Great Lakes.


Matthew Fletcher is a specialist in tribal law at Michigan State
University. As far as he can tell, this is the first time a state has
voluntarily recognized tribal treaty rights extending to off-
reservation lands without being told to do so by a court:


“There are tribes and there are treaties nationwide that have
similar language. And I’m sure they’re watching this very
carefully. And this kind of consent decree is going to create a
kind of precedent for other states that are engaging in similar
kinds of negotiations.”


The agreement still needs to be accepted by a federal judge
before it becomes binding in law. For tribal elder Hank Bailey
the deal might chip away some free exercise of historic rights,
but it also reasserts that those rights can’t ever be taken away:


“For me that’s… that is about the most powerful part of it is
being able to know that I will continue to be an Odawa, black
wolf clan, a man… somebody that respects the resources
around me. And I’m willing to work with anybody else that
feels the same way, whether they’re tribal or not.”


For the Environment Report, I’m Bob Allen.

Related Links

Keeping an Eye on Eagles

  • The bald eagle was protected by the Endangered Species Act for 40 years, but researchers are still finding toxic chemicals in the eagles' plasma. (Photo by William Bowerman)

The bald eagle came close to extinction
before strong measures were taken to help pull
it back. The eagle was protected by the Endangered
Species Act for 40 years. And the government banned
toxic compounds such as DDT that caused damage to the
eagles’ eggs. Bob Allen caught up with researchers
who are monitoring the health of the birds. They’re
finding the birds are still being exposed to toxic
chemicals:

Transcript

The bald eagle came close to extinction
before strong measures were taken to help pull
it back. The eagle was protected by the Endangered
Species Act for 40 years. And the government banned
toxic compounds such as DDT that caused damage to the
eagles’ eggs. Bob Allen caught up with researchers
who are monitoring the health of the birds. They’re
finding the birds are still being exposed to toxic
chemicals:


We’re on a steep, heavily wooded hillside about a mile above a
barrier dam on the Muskegon River in Michigan. The land is part of a private
church camp. So, human intrusion on the site is low. And the
pond behind the dam provides plenty of food for eagles rearing
their young.


Once every five years researchers are permitted to come here and
take young birds from the nest.


“Usually we try to keep people about a quarter mile away from the
nest. And that way we don’t have human disturbance that
would cause them to fail.”


Bill Bowerman is a wildlife toxicologist from Clemson
University. He first became part of this eagle survey as a grad
student at Michigan State more than 20 years ago, about the time
researchers began taking blood and feather samples.


Wildlife veterinarian Jim Sikarskie says eagles sit atop
the aquatic food chain, so any contaminants in the ecosystem
eventually show up in them:


“The contaminants that are in the plasma from the blood and
from the feathers then help us evaluate the quality of the water in
the area around the nest. So we do birds from different watersheds
every 5 years as part of the water quality surveillance plan.”


The nest is a tangled mass of twigs in an aspen tree swaying in a
strong breeze about 60 feet off the ground. As the research team
approaches, the female lifts off and begins to circle and squawk
just above the tree-tops.


They lay out syringes and test tubes on the ground. Walter
Nessen gets ready to climb the tree. He’s worked with
Bowerman monitoring sea eagles in his native South Africa.


Walter buckles into his harness and straps a pair of climbing
spikes to his boots. He has the kind of wiry strength and agility
that makes for a good climber. He prefers not to use gloves to
handle the eaglets because he relies on a sense of feel between
his hands and their legs:


“Immature birds, nestlings, are quite delicate because their
feathers are not hard-pinned. In other words, there’s still
blood circulating inside the feathers as it’s growing. One has
to be careful not to bend them or break them because they
will not develop further. That’s the most important thing.
The other thing is you need to take care the birds have big
claws. It’s one of the first things developing on the birds so
they can attack you and claw you and scratch you and that
kind of thing.”


Walter wraps his climbing rope, really a polyester-covered steel
cable, around the trunk of the tree, locks it into his harness and up
he goes.


First he checks nestlings to be sure they’re old enough and in
good condition before lowering them down in a special padded
“eagle bag.”


With young eagles on the ground, everyone becomes hushed and
businesslike. Bowerman writes down the eaglet’s weight and
other measurements. They’re four to five pounds with some
down-like feathers still clinging to them. Most prominent are
their dark beaks and yellow-orange claws.


Sikarskie carefully drops a cloth hat over an eaglet’s head to keep
the bird calm. Then, he talks a young grad student through
taking her first blood sample from the underside of a delicate
wing.


The two nestlings are examined for parasites. Then, they’re leg
banded, tucked gently back in the bags and hoisted aloft. They’re
out of the nest for maybe fifteen minutes.


Places like this, far upriver from the Great Lakes, were refuges
for eagles back in the DDT era. Eagles survived here because
fish couldn’t pass above barrier dams on the rivers and carry their
toxic burden with them, and Bowerman says the difference is still
noticeable today:


“If you live along the Great Lakes you still have higher levels
of PCBs. You still find DDE, which is the egg shell thinning
compound that caused the eagle’s decline in the first place. If
you’re in an area like this which is upstream of the Great
Lakes, there’s much less level in these inland birds.”


Eagle research in Michigan extends back 47 years.
Bowerman calls it the oldest continuous wildlife survey in the
world. It’s a record that documents the recovery of a species in
trouble, but sometimes the information has a more immediate
impact.


Bowerman says some years ago, tests on baby eagle’s blood
from Michigan showed a spike of an unknown chemical. Lab
tests found it to be from a product called Scotch Guard, a stain
repellent for fabric produced by the 3M Company.


When told about it, 3M hired Bowerman’s professor, John Geise,
to find out how widespread the compound was:


“John’s lab went all across the world collecting tissues of
different wildlife species. And they found it world-wide. And
that’s why 3M took scotch guard off the market.”


Bowerman worries that monitoring efforts will slack off when
bald eagles are off the Endangered Species list, and that new
contaminants will be missed. But he can’t help being inspired
by the birds’ recovery:


“Does it make you any more alive to watch that beautiful
eagle soaring around? And it’s really neat to see how many
there are now. So this is just spectacular.”


For the Environment Report, I’m Bob Allen.

Related Links

Toxin Kills Endangered Birds

  • A poisoned seagull on a Lake Erie Beach. Type-E botulism is spreading up the food chain and killing birds on the endangered species list. (Photo by Lester Graham)

A toxin that has killed tens of thousands of shorebirds throughout
the Great Lakes is back. Type-E botulism is spread up the food
chain by invasive species. And as Bob Allen reports, the toxin
recently killed four birds on the endangered species list:

Transcript

A toxin that has killed tens of thousands of shorebirds throughout
the Great Lakes is back. Type E botulism is spread up the food
chain by invasive species. And as Bob Allen reports, the toxin
recently killed four birds on the endangered species list:


There are just 60 pairs of piping plovers known in the Great
Lakes. Many of them breed along the shores of Lake Michigan.


Wildlife officials protect nesting plovers by putting up fences to
keep predators away, but they can’t keep the tiny shorebirds from
eating insects as they skitter up and down the beach. The insects
can pass on Type E botulism to the endangered birds.


Biologist Ken Hyde says the toxin gets into the food chain
through fish – primarily round gobies – that feed on algae and the
invasive zebra and quagga mussels.


“Yeah, we’ve got some pretty good evidence that it’s this cycle of
the algae and then the mussels and the gobies feeding on them
and then primarily gobies coming to the surface that our native
water birds are feeding on.”


Wildlife officials expect to see a lot more dead shorebirds as
the summer progresses.


Type E botulism is not a threat to humans.


For the Environment Report, I’m Bob Allen.

Related Links

Getting Gerber Organic Apples

A national baby food company is looking to increase its line of organic products. But first it has to find more organic apples. And, as Bob Allen reports, that might encourage some growers to put more acres into organic
crops:

Transcript

A national baby food company is looking to increase its
line of organic products. But first it has to find more
organic apples. And, as Bob Allen reports, that might
encourage some growers to put more acres into organic
crops:


Gerber Baby Foods is trying to meet demand for more organic
product, but growers aren’t likely to go organic unless the
price makes it worth their while.


Jim Koan says Gerber will add stability to the market. He
grows organic apples in Michigan, and he says he can’t
always trust local markets to do what they say they’re
going to do:


“We’re going to want to buy your product and it’s local and
regional and blah blah this and that. And then in a second
breath if somebody else comes along from another state
that’s selling a little bit cheaper all of a sudden you’ve
lost your home for your fruit that you were growing for
them.”


Gerber is based in the Midwest. A contract with Gerber
would give growers in the region some assurance they have a
place to sell their fruit. Right now, most organic apples
are shipped from Washington state.


For the Environment Report, I’m Bob Allen.

Related Links

Mysterious Disappearing Bees

  • Brownish-orange bumps on the backs of these bees are Varroa jacobsoni mites, a possible cause of CCD. (Photo courtesy of the USDA)

Millions of honeybees across the country are dying
mysteriously. Entire hives or colonies of bees are
collapsing. Scientists say it’s some new threat. They’re scrambling to find answers.
As Bob Allen reports, bees are crucial in pollinating billions of dollars worth
of crops every spring:

Transcript

Millions of honeybees across the country are dying
mysteriously. Entire hives or colonies of bees are
collapsing. Scientists say it’s some new threat. They’re scrambling to find answers.
As Bob Allen reports, bees are crucial in pollinating billions of dollars worth
of crops every spring:


That fresh crisp apple you bite into for lunch comes from
a bee pollinating an apple blossom, but honeybees in the
U.S. are under tremendous stress. A new threat is
devastating them. It can wipe out entire colonies.


There’s plenty of honey still left in the hives to feed
the bees, but the bees have vanished. Scientists are
baffled. They’re calling it “Colony Collapse Disorder.”


Dennis van Englesdorp is bee inspector for the state of
Pennsylvania. He says the disorder first showed up in his
state last fall. But it’s now threatening the entire
beekeeping industry:


“We could not sustain the level of loss we’re seeing this
year several years in a row. And there are crops that are
90 to 100% reliant on honeybees for pollination. You need
bees for apples. And if you don’t have bees you don’t have
apples.”


A research team at Penn State University has given
themselves until fall to come up with some answers.


On a hilly farm in northern Michigan, Julius Kolarik raises
apples, cherries and honeybees. It’s a sunny day with the
temperature nudging near 50 degrees:


“So, no, it’s a beautiful day for bees. Makes you feel
good when you see bees flying. Makes me feel good
(laughs).”


This is the first time Kolarik has checked his bee yard
since fall. He uses his hive tool to pry the top off each
three-foot high colony to see how the bees are doing:


“We can see that they’re alive and that’s the main thing.”


It used to be considered an embarrassment if a beekeeper lost more
than 10% or so of his bees annually, but things have
gotten a lot tougher in recent years.


Parasitic mites have infested honeybees just about
everywhere. They’ve weakened the bees and left them
vulnerable to diseases and that’s meant annual losses
double what they used to be.


Now on top of that, there’s this new disorder. But Julius
Kolarik is not so sure how new it is. He’s been
raising honeybees since he was a kid:


“We’ve seen some of the same symptoms, so uh, through the
years. Even before we finally said that we have mites, uh.
We were getting unexplained losses. But now it’s come back
again. ‘Cause other years guys have lost whole yards but
left one or two hives.”


Bee researchers say previous outbreaks of colony collapse
were isolated incidents. This time it’s spread across the
country.


Tom McCormick’s small beekeeping operation supplies honey
to local markets in western Pennsylvania. That is, it did
until two years ago. That’s when he says collapsing
disorder killed half his colonies, so he bought more bees
to replace them. They did OK last year, but this spring
he’s looking at an 80% loss:


“To me it doesn’t make sense to go buy more bees and throw
them right back into the same situation without any idea
what the cause is.”


McCormick says two of his beekeeping friends have been
totally wiped out. And they’ve been seeing more than one
thing going on in their hives:


“One, we see hives full of honey and no bees. Totally
gone. We see other situations where we have a nice large
cluster of bees with honey all surrounding them and the
bees dead.”


When he reported this two years ago, he says, state
officials ignored him. Pennsylvania state beekeeper Dennis van Englesdorp admits
he thought McCormick had a serious mite problem at first.


But now researchers at Penn
State are checking other possible
environmental stresses that could be killing honeybees.
van Englesdorp says pinpointing the cause can be just
as difficult with bees as it is with humans:


“You can get a heart attack if you don’t eat well, if you
drink too much, if you smoke, you’re genetically disposed
to a heart attack. It could be one of those factors. It
could be a lot of those factors combining together.”


For this year, he says, the disorder means the number of honeybee colonies will be lower,
but he expects there to be enough to meet pollination
demands.


For The Environment Report, I’m Bob Allen.

Related Links

Farm Workers Back in Court to Fight Pesticide

Environmental groups are back in
court to challenge the use of the main pesticide
used in growing cherries and apples. Bob Allen
reports the environmentalists had set aside their
lawsuit while waiting for EPA to issue new rules
for applying the chemical during a phase-out period:

Transcript

Environmental groups are back in
court to challenge the use of the main pesticide
used in growing cherries and apples. Bob Allen
reports the environmentalists had set aside their
lawsuit while waiting for EPA to issue new rules
for applying the chemical during a phase-out period:


Azinphos-Methyl or AZM is a highly toxic chemical that
affects the nervous system. Last November, EPA released
stricter rules for applying it and they gave apple and
cherry growers another six years to phase it out.


Environmental groups say that’s much too long, and they’ve
taken up their suit again.


Shelley Davis is with Farmworker Justice. She says EPA was
supposed to weigh the cost to growers against the health
risks to workers and their families.


“The problem here is that EPA didn’t do that. All it did
was total up the financial benefit to the growers. And
that’s what we said to the court is not a fair deal.”


Regulators say growers need more time to learn to use
alternative pesticides.


For the Environment Report, I’m Bob Allen.

Related Links

Cougars Creep Into Suburbia

Wildlife biologists say cougars are gradually moving from the Mountain
West into Midwestern states. Usually the large cats avoid people, but in
one suburban neighborhood residents are worried. They say they’ve
spotted a cougar in their backyards six times in the last two years. They’re
worried about their pets. They’re worried about their kids. Bob Allen
reports:

Transcript

Wildlife biologists say cougars are gradually moving from the Mountain
West into Midwestern states. Usually the large cats avoid people, but in
one suburban neighborhood residents are worried. They say they’ve
spotted a cougar in their backyards six times in the last two years. They’re
worried about their pets. They’re worried about their kids. Bob Allen
reports:


On a June morning two years ago, David Hanawalt was hunched over a
flower bed in his back yard loosening the soil with a hand rake. He says
he caught something out of the corner of his eye moving toward him:


“I started to prepare myself because it seemed like a large dog that was
making a beeline for me.”


(Allen:)”As if it was going to jump on you?”


“Yeah. And as soon as I stood up and turned it veered off. And the way it
ran, the way it moved, and its ears, I swear it was a cat.”


The cat disappeared into a patch of brushy woods behind his
house. Hanawalt says he became more convinced it was a cougar when his wife, T, saw
a big cat with a long tail sauntering across a neighbor’s blacktop driveway.


“…And it was just walking up like this. Just walking up. And then it went
just right off into those woods. Casually. It wasn’t in any hurry.”


The creature’s nonchalance is what has people in this northern Michigan
neighborhood worried. Some of them have read David Baron’s book
Beast in the Garden. It recounts how people have built their houses in
foothills surrounding Boulder, Colorado, right into prime mountain lion
country, then they saw cougars coming into their yards, taking their dogs and cats.
Eventually, a cougar killed a high school boy when he was jogging on a
wooded trail outside Boulder.


There are significant differences between the situations in Colorado and
Michigan, but author David Baron says if people are seeing a cougar and
it’s not running away from them, and in fact begins to approach them, then
that can be a warning sign:


“That’s what was seen in Boulder in the years before there was a fatal
attack not too far from Boulder. That’s what was seen in Missoula,
Montana back in the late ’90s before a little boy was attacked who did
survive. But again, if there are multiple reports of what is clearly a cougar
in one neighborhood, it’s probably worth looking into.”


Back in the northern Michigan subdivision Patty Barrons lives in the
house at the end of the cul-de-sac. It backs right up to a stretch of woods.
She was walking up the street one early morning last August when she
spied a big cat heading into her back yard. She took off running for her
front door because she remembered she’d left her housecat on the back
deck:


“…And I ran through the house, and onto my deck and down the two steps.
And went, I can’t believe I did this, it’s so embarrassing but I went, shoo,
shoo.”


It didn’t shoo.


Instead, Barrons says, it turned and took two steps toward her. She took
two steps back onto the porch. Barrons describes the animal as
enormous. She says she and the big cat watched each other from a
distance of fifteen feet for about half a minute:


“The face when we looked at each other eye to eye I felt that I was looking
at, I mean I knew I was looking at a lion. I knew I was looking at a lion,
there was no doubt. It was very muscular. It never crouched down or
anything so I didn’t feel threatened. But it stared at me and then, um, it
turned and walked around my flower garden, behind the tennis courts
and kept going.”


Patty Barrons keeps a careful eye out when she takes her early morning
walks, and she won’t work in her garden in the early morning or
late evening hours anymore.


(Sound of model airplanes buzzing)


Next to her house is an open field where kids play soccer and neighbors
walk their dogs, and its where T Hanawalt’s sons fly the remote controlled
model airplanes they love to build, but she won’t let them go out by
themselves anymore:


“Day or night. I mean they used to run around this neighborhood and play
with all the children at night and we’re not doing that anymore. I just, I
can’t have that it’s too scary. In fact, I’m looking to move.”


State wildlife officials won’t come out to investigate unless there’s clear
evidence of what could be a cougar. That means a photo, a paw print,
maybe some scat or droppings from the animal.


The people in this neighborhood didn’t get any of that, but now they have
their cell phone cameras handy.


For the Environment Report, I’m Bob Allen.

Related Links

Phased-Out Pesticide Needed for Orchards?

  • Apple and cherry farmers are concerned phasing out an effective pesticide will affect production and leave more pesticide residue. (Photo by Lester Graham)

The EPA has granted a six-year reprieve for fruit growers to continue to use a highly toxic pesticide. But the decision to eventually phase it out is an uneasy compromise. Environmental health advocates say the delay continues to put farm workers and their families at risk. But growers say they haven’t yet found an effective replacement. Bob Allen reports:

Transcript

The EPA has granted a six-year reprieve for fruit growers to continue to use a
highly toxic pesticide. But the decision to eventually phase it out is an uneasy
compromise. Environmental health advocates say the delay continues to put
farm workers and their families at risk. But growers say they haven’t yet found
an effective replacement. Bob Allen reports:


No one wants Gramma to find a worm when she opens a can of cherries to make
a holiday pie.


According to regulations, inspectors have to make sure cherries coming to market
are worm free. And that puts big pressure on growers when they bring fruit out
of the orchard.


“And you know there’s a zero tolerance for worms. And if they find one worm
they can reject, not just that load, they can reject your whole crop for that
season.”


Francis Otto oversees pesticide spraying for one of the largest cherry orchards
along the west side of Michigan.


For decades those who grow cherries and apples have relied mostly on one
chemical to keep their fruit worm-free. Some call it the hammer. It knocks
down every insect in the orchard for several days. Then it degrades quickly
under sunlight and rain. It’s called azinphos methyl or AZM.


A generation ago workers were directly exposed when they mixed the chemical.
But things have improved since then.


Francis Otto fingers a safer pre-measured packet of AZM.


“It’s called a water soluble packet inside of an overwrap so I can pick this bag up
of azinphos and this plastic bag that it’s actually in dissolves in the water. And so
workers are not exposed to the actual materials.”


That kind of protection is not enough to satisfy groups that sued the EPA on
behalf of farm workers and their families.


Shelly Davis is an attorney with Farmworker Justice. She thinks AZM is just too
toxic to use at all and it ought to be phased-out right away.


“It’s so toxic that if you make the slightest error people are going to get hurt.
>From moderate senses of nausea, vomiting, weakness to convulsions or death.”


There’s no record of anyone dying from AZM. And incidents of serious
poisoning are fairly rare.


But Shelly Davis is mainly worried about effects from low-level exposure to
workers over a long time.


Studies show workers bring pesticides home on their shoes and clothing. It’s in
the dust in their houses where children play.


In Oregon, migrant workers exposed to AZM showed slower reaction times on
tests of how quickly their brains respond than those who don’t work in the
orchards.


“This is a ticking time bomb. Because when children get exposed it gets to the
effect that it can affect their intellectual functioning over time.”


But health researchers are careful to point out there’s no direct link established
between AZM exposure and learning deficits.


As a precaution, they recommend reducing children’s exposure as much as
possible.


EPA is cutting in half the amount of AZM that can be sprayed over the next six
years until it’s phased out. And workers will have to wait 14 days to re-enter a
sprayed orchard instead of 48 hours.


Mark Whalon runs the pesticide alternative lab at Michigan State University.


He’s experimenting with less toxic materials. He says they have to be sprayed
more often and much closer to harvest than AZM to be effective.


Whalon also has spent 25 years developing ways for growers to keep insects in
check other than using chemicals.


“And now we’re going to have to start over again with these new reduced
compounds because they have a whole different set of impacts that we’ve got to
learn all over again.”


Whalon says EPA doesn’t have good data on what the long-term health effects
might be from exposure to the alternative pesticides.


But Shelly Davis with Farmworker Justice says she’d prefer the unknown effects
from much less toxic materials than the sure danger of AZM.


Either way, Francis Otto at Cherry Bay Orchards says something’s got to give.
The alternative pesticides he’s tried are way more expensive but not as effective
as AZM.


Yet he’s still expected to deliver apples and cherries to the buying public free of
insect damage for the same price.


For the Environment Report, I’m Bob Allen.

Related Links

Azm Phaseout Leaves Fruit Farmers Hanging

Environmental groups are considering resuming their lawsuit against the EPA. They say it’s a travesty the agency has tacked an extra couple of years onto their original plan to phase out a widely used pesticide. But some fruit growers are struggling to find an alternative that’s as effective as what they’re losing. Bob Allen reports their industry has little margin for error:

Transcript

Environmental groups are considering resuming their lawsuit against the EPA. They say it’s a travesty the agency has tacked an extra couple of years onto their original plan to phase out a widely used pesticide. But some fruit growers are struggling to find an alternative that’s as effective as what they’re losing. Bob Allen reports their industry has little margin for error:


Azinphos methyl or AZM is the main insecticide used in cherry and apple orchards. The cherry industry has zero tolerance for any insect parts found in the fruit. Whole truckloads of cherries have been dumped because of a single fruit fly maggot.


Michigan State University researcher Mark Whalon says so far there’s no alternative to AZM that can do the job. He’s been testing the use of alternatives in orchards for the last three years.


“Other locations where cherries are grown can use these compounds, export them into our markets and essentially put us out of business because they can grow cherries at a very much reduced cost.”


This spring EPA planned to phase out AZM on fruit by 2010. But a week ago the agency decided to allow its use to continue two years beyond that.


For The Environment Report, I’m Bob Allen.

Related Links