Weevils vs. The Mile-A-Minute Weed

  • The mile-a-minute weed (Photo courtesy of the USDA)

Sometimes biologists fight foreign
pests with other foreign animals. But that
can be risky because it can create a bigger
problem than the one it’s supposed to solve.
Sabri Ben-Achour reports on one of the latest attempts to stop a weedy pest:

Transcript

Sometimes biologists fight foreign
pests with other foreign animals. But that
can be risky because it can create a bigger
problem than the one it’s supposed to solve.
Sabri Ben-Achour reports on one of the latest attempts to stop
a weedy pest:

On farms, backyards, and rights of way up the Eastern Seaboard a pointy leaved thorny
newcomer is becoming increasingly visible. It’s called mile-a-minute weed.

Bob Trumbule is an entomologist. He leads me through a stream valley north of
Washington DC where blackberries and small trees are being swallowed up by this
invasive vine.

“So now we’re getting into the mile-a-minute here. Basically what it does it, it’s an
annual vine, it grows up and over plants, it smothers them, out competes them for
sunlight, and weighs them down.”

The weed is native to Eastern Asia: China and Japan. It was introduced accidentally in
Pennsylvania in the thirties. From there, it’s spread to seven other states. It prevents new
trees from sprouting in forests. But back in Asia, it’s not a dominating species like it is
here.

Judith Hough-Goldstein is a professor at the University of Delaware.

“Part of the reason is because it doesn’t have anything that’s feeding on it. It’s gonna be
without its predators so it can out-compete other plants.”

Over several years, biologists searched for something that would eat the vine. They
found a tiny, black weevil in China. It feeds on the plant and lays it’s eggs there, keeping
things in check – in Asia.

“Here are the weevils. I’m gonna give you a glimpse of them here in the cup. They look
almost like little ticks. I’m gonna put them down here in the mile a minute weed patch,
and basically what they’ll do – they’re tough little guys – they’ll climb around and in the
past experience have started to feed almost immediately.”

Up close, they look like little anteaters, poking around the leaves with long snouts.

This may sound risky. There are lots of examples where similar approaches have gone
wrong. A parasite was introduced in North America to control gypsymoths. It attacked
native silkmoths. Mississippi catfish farmers used Asian carp to control algae. They got
loose and are taking over the Mississippi River system and threatening the Great Lakes.

And Trumbule admits nobody knows for sure exactly what might happen.

“Any scientist that might say otherwise is not being honest with themselves or the person
asking the question.”

But he says a lot’s been learned since the days when any scientist could introduce a
species on a whim. These days, exhaustive testing and federal permits are required
before anything is released.

That’s why for almost ten years Judith Hough-Goldstein has been trying to determine if
the weevil would eat anything else. Tests were conducted in a U.S. Department of
Agriculture ‘quarantine facility’ with sealed windows and its own re-circulated air supply.

“So what we found was that, in fact, this particular weevil is extremely host specific. The
insect has evolved to depend on the plant.”

So much so that the weevils and larvae actually starved to death rather than feed on other
plants.

In field tests in New Jersey and Delaware, the weevils have decimated mile-a-minute
weed. Some researchers say it’s the most impressive biocontrol they’ve worked with.

For The Environment Report, I’m Sabri Ben-Achour.

Related Links

Keeping a Big Fish From Butting In

  • Asian Carp can grow up to 110 pounds (Photo courtesy of the US Fish and Wildlife Service)

There are invasive fish swimming their
way toward the Great Lakes. If they get in,
they could swallow up a multi-billion dollar
sport fishing industry. Mark Brush reports,
officials are investing millions of dollars
to keep Asian Carp out of the Great Lakes:

Transcript

There are invasive fish swimming their
way toward the Great Lakes. If they get in,
they could swallow up a multi-billion dollar
sport fishing industry. Mark Brush reports,
officials are investing millions of dollars
to keep Asian Carp out of the Great Lakes:

Asian Carp were imported by fish farms in Mississippi and Arkansas to control algae.
But the fish escaped during floods. They swam out of the fish ponds, and into the Mississippi
river. And they’ve been moving north ever since.

(sound of boats)

Thad Cook is on a tributary of the Mississippi River in Illinois. This river is more than
400 miles upstream from where Asian Carp first escaped the fish farms.

Cook is looking
for two types of Asian Carp known as Silver and Bighead Carp. It turns out t’s not hard to find them. He dips an electrified pole into the water – and the fish jump right out of the
river and into the boat.

(sound of fish flopping in boat)

Cook is with the Illinois Natural History Survey. His group, along with several others,
has been making trips like this one for years. They’ve been keeping a close eye on where
the fish are going. He takes a guess at how big this fish is.

“No he’ll go… uh.. he’s probably…”

“Hold him out there Jimmy!”

“Yep, six, seven, eight, nine, ten pounds.” (Laughter)

His fish story could have gone a lot further. Some types of these Carp can get up to a
hundred pounds. There aren’t many fish that can compete with an appetite like that.

Biologists are finding that these carp are pushing native fish species aside as they spread
north through the Mississippi River system. And some fear it’s only a matter of time
before they swim their way into the Great Lakes.

David Jude is a fisheries biologist with the University of Michigan.

“I’m very concerned about what impact they would have in the Great Lakes because
they’re planktovores which means they filter zooplankton from the water column. And, they’re just huge fish. And so they have the potential for having
a tremendous impact on our ecosystems.”

He says the silver and bighead carps are filter feeders. They pass up eating smaller fish –
and head straight for the bottom of the food chain.

Jude says if Asian carp get in, it’ll make a bad situation worse. The Great Lakes are
already losing zooplankton from other invasive species. Asian Carp could
destroy a 4 billion dollar a year sport fishing industry.

(sound of canal)

And here is where the battle line is being drawn. The fish have been spotted thirty miles
downstream from this spot on the Chicago Ship and Sanitary Canal. A century ago,
engineers blasted through solid rock to connect the Great Lakes with the Mississippi
River system.

Chuck Shea is with the U.S. Army Corps of Engineers.

“Any type of fish that would want to move between Lake Michigan and the Mississippi
river basin – has to pass through the Chicago Sanitary and Ship Canal – there’s no other way to swim through. So, they have to come through this body of water we’re standing in front
of right now.”

Shea is in charge of the construction and maintenance of two electric fish barriers along this canal.
When this barrier is online, machines will pulse electricity into the water. The electric current shocks
the fish – making them swim away.

This barrier hasn’t been turned on yet. There have been delays due to funding shortages. And they’re still
doing safety testing with the Coast Guard.

Right now, the only thing that would keep the carp from getting into the Great Lakes is a temporary electric
barrier built six years ago.

The good news is that there still seems to be a little time. Biologists say, so far, Asian Carp haven’t moved any
closer than thirty miles from the barrier for the last couple of years.

For The Environment Report, I’m Mark Brush.

Related Links

Watching Wild Birds for Avian Flu

The US government is testing wild migratory birds for a deadly strain of avian flu. The GLRC’s Rebecca Williams reports, so far, no wild birds have tested positive:

Transcript

The US government is testing wild migratory birds for a deadly strain of
avian flu. The GLRC’s Rebecca Williams reports, so far, no wild birds have
tested positive:


Researchers have tested 13,000 wild birds in Alaska. They’re worried
that wild birds could carry the deadly H5N1 strain of avian flu as they
migrate from Asia to North America and infect other birds in Alaska. The
virus has killed more than 140 people in Asia, Europe and Africa.


Gale Kern is with the US Department of Agriculture’s Wildlife Services
Program:


“We still don’t know how effective wild birds are at carrying the virus long
distances. I think we need to remain diligent and really keep up our
surveillance efforts because we just really don’t know a lot about this
particular strain yet.”


Kern says biologists will now focus on testing birds in the lower 48 states
as fall migration south begins.


Agencies also consider poultry imports and smuggled pet birds ways the virus
could get into the States.


For the GLRC, I’m Rebecca Williams.

Related Links

Hybrid Car Ownership Drives People Together

Some hybrid car owners are starting clubs to socialize and to learn how to squeeze even more miles per gallon out of their fuel-efficient vehicles. The number of hybrid owners is still small enough that the owners feel a little “special.” The GLRC’s Chuck Quirmbach reports:

Transcript

Some hybrid car owners are starting clubs to socialize and to learn
how to squeeze even more miles per gallon out of their fuel-efficient
vehicles. The number of hybrid owners is still small enough that the
owners feel a little “special.” The GLRC’s Chuck Quirmbach reports:


Bradley Fons says he already thought about the environment a lot before he
purchased a used hybrid car three years ago. He bought a Honda Insight:


“…And I kind of figured out how to drive it to get the best mileage but there
was no support, no help out there at that point to assist me.”


Eventually, Fons found a group of hybrid owners who helped him answer
some questions about the car.


(Sound of group meeting)


But this year, with some help from his family, Fons has done one better: he’s
organized a hybrid owners club.


(Marie Fons) “…And put your name on one of these little things, for a door prize. I know, work, work, work, work, work. Here, you guys want to work on the
door prize thing?”


Bradley Fons’ wife, Marie, is helping about two dozen people check in. This
is the first meeting of the hybrid owners group. They get to know each
other by their name, their city, and the kind of hybrid they drive:


“I’m Kathy Moody from Racine and I have a ’05 Prius.”


“I’m Bill Vaness from Waukesha and I ride in my wife’s ’03 Prius (laughs).”


(Group member) “At least you’re honest.”


“My name is Sherrie Schneider, I’m from Bristol and I have an ’06 Civic. Picked it up about a month ago and I’m here to learn a lot ’cause I don’t know how to get the mileage you all
are getting but I’m going to learn (laughs).”


And so Bradley and Marie Fons go into teaching mode, offering encouragement and advice about how to get the most miles per gallon from the cars. The hybrid of gas engine and electric batteries usually cost more to buy more than similarly sized conventional cars. So the new owners are anxious about getting the best mileage possible.


Bradley Fons preaches patience. He says for new vehicles, owners have to work through
the car’s several thousand mile break-in period before they get the kind of gas
efficiency the cars can reach:


“So if you’re getting in the forties, ya know, high 40, mid 40, to low 50s in
a Prius and it’s new, don’t worry about it, ya know. It’ll come.”


Fons says some of these cars will get miles-per-gallon in the 60s and 70s. Then there are
the controversial people who’ve become what’s known as “hyper-milers,” getting 80 or 90
miles per gallon through various means that even the hyper-milers concede aren’t
completely safe.


Fons introduces Wayne Gerdes, who tells how to steer a hybrid
in the air draft right behind 18-wheel trucks:


“Hopefully you’ll understand that this close in, is this one car to one and a half second
back, that’s a dangerous area. I don’t recommend anybody doing it, but you’re gonna find
your fuel economy going through the roof on that.”


The hybrid owners club that the Fons family has organized also takes club
members out in hybrids for some lessons on the road:


“So we’ll go down, ya know, another set of streets.”


Bradley Fons sits in the front passenger seat of a Toyota hybrid. He’s
teaching a club member named Bill a driving method called the “pulse-and-
glide.” Basically, it involves only occasionally tapping the gas pedal and coasting
a lot, so that neither the car’s motor or electric battery system is operating much.


When pulse-and-glide is done right, a monitor on the dashboard reports a surge in
fuel efficiency. After some difficulty, Fons helps Bill get the hang of it:


“All right, foot totally off. Now just on a little, there you are. You’re in it, hold it,


(Bill) “Do you take your foot off when you’re in there, though?”


“No, you have to leave pressure on it. Boy, that was the longest glide you did (laughs)!”


It’s moments like these that make Bradley Fons glad he and his family are helping to
spread the hybrid car message. But Fons sees an opportunity for members of his club to
go outside the group and become pro-hybrid activists:


“Hoping dealers get more hybrid cars, working for candidates that push alternative fuels,
sustainable energy, anything that can be done…because at this point in time it hasn’t been
coming from the government. They’ve done some, but our group doesn’t feel they’ve done
enough.”


Fons says politicians should listen to hybrid owners and hybrid clubs, because they’re
offering part of the solution to America’s oil addiction.


For the GLRC, I’m Chuck Quirmbach

Related Links

Migration Season Brings Bird Flu Worries

  • Julie Craves stands in the area where she sets up mist nets during migration to catch land birds. (Photo by Christina Shockley)

Researchers have been monitoring the spread of a potentially deadly strain of avian influenza overseas. Health officials worry the H5N1 strain could mutate into a form that could infect humans. Some researchers say the virus could make its way to the United States as early as this fall… by way of wild migratory birds. The GLRC’s Christina Shockley reports:

Transcript

Researchers have been monitoring the spread of a potentially deadly
strain of avian influenza overseas. Health officials worry the H5N1
strain could mutate into a form that could infect humans. Some
researchers say the virus could make its way to the United States as early
as this fall… by way of wild migratory birds. The GLRC’s Christina
Shockley reports:


Wild birds carry all sorts of influenza viruses. Most are of no threat to
people, but the H5N1 strain is different. When it gets into people… it’s
often fatal. Overseas the strain has killed whole farms of poultry such as
chicken and ducks… it’s also infected other types of animals, including
cats.


The H5N1 strain has not been found in the United States, but most
experts say it’s just a matter of time before it is. Some say infected
domestic poultry or smuggled pet birds will likely bring the virus to the
U.S. Others say the virus could come here by way of migrating birds…
that are on the move now.


Steve Schmitt is the lead veterinarian for Michigan’s Department of
Natural Resources. He says birds from Asia… that are possibly infected
with the H5N1 strain are on their way to Alaska right now. There, they
could mingle with birds that will later fly back to the United States.
Schmitt says there are four major flyways over the U.S.… the Pacific,
central, Mississippi, and Atlantic.


“There are birds that will winter in Asia and then come back and nest in
Alaska. If they bring the virus back with them, then they could transmit
that to birds that are in Alaska that come down any of these four major
flyways, and that of course is a big concern, moving it all over the
country.”


Schmitt says most birds that nest in Alaska use the Pacific flyway along
the Pacific coast… to migrate south to the U.S. and Mexico. He says
that means, if the virus were to come to the United States via migratory
birds, the pacific coast would probably be its first stop in the lower 48.
Schmitt says then, birds that use the other flyways could become
infected.


“Most of the migration is north-south, but you do have a few that will
move – jump over to another flyway, and when that happens, the
potential to move the virus to that new flyway happens. Once it’s in a
new flyway, that north-south movement would take over.”


Programs are underway an Alaska and throughout the United States to
test wild birds for various strains of avian influenza, including H5N1.
Experts say waterfowl and shore birds are the most likely carriers of the
dangerous strain, but some say land birds – such as migrating songbirds –
should be tested, too.


(Sound of birds)


Julie Craves studies land birds at the Rouge River Bird Observatory on
the University of Michigan’s Dearborn campus. She catches and bands
thousands of wild birds each year during their spring and fall migrations.


This year, Craves will participate in a study that hopes to eventually test
hundreds of thousands of birds across the U.S. and Latin America for
avian flu strains.


“It’s just a great opportunity with people handling birds already, we may
find out some very interesting things about which subtypes are present in
land birds, and if indeed this disease does come to North America, we
will have a head start on seeing what types of migratory pathways are
being used by birds.”


Craves says very little is known about how avian flu moves among land
birds, and experts say each time the virus is transmitted to a different
species it mutates, and each time it mutates, the chances are greater that
it will change into a form that’s easily passed among humans. That’s a
big concern, because such a mutation could lead to a quick spread of
human cases across the globe.


But some say that might never occur… they say the strain might be
unable to mutate into one that’s dangerous to humans.


Arnold Monto is a professor of epidemiology at the University of
Michigan. He says there will be a problem if the strain mutates, but it’s
unlikely people will get the virus from migrating birds.


“I doubt very much whether we’re even gong to see even a handful of
cases in the United States, should avian influenza arrive, and it probably
will, with the migratory birds coming down from Alaska, perhaps next
fall.”


Monto says most of the human transmissions overseas have been from
poultry being raised in the back yard, and not from wild birds. That
means visiting the ducks and geese in the park… and feeding songbirds
in the back yard… are not high-risk activities. Monto says people should
take basic precautions, such as washing hands, to avoid contracting any
sort of flu virus.


Many experts say, on the list of things to worry about, catching a deadly
form of avian influenza is no where near the top of the list of dangers.


For the GLRC, I’m Christina Shockley.

Related Links

MIGRATION SEASON BRINGS BIRD FLU WORRIES (Short Version)

  • Julie Craves stands in the area where she sets up mist nets during migration to catch land birds. (Photo by Christina Shockley)

Researchers are tracking a potentially dangerous strain of avian flu in Asia, Europe, and Africa. They say the H5N1 virus could mutate and cause a human pandemic. Experts say domestic poultry or smuggled pet birds could bring the virus into the U.S. Others say it will arrive this fall by way of migratory birds. The GLRC’s Christina Shockley reports:

Transcript

Researchers are tracking a potentially dangerous strain of avian flu in
Asia, Europe, and Africa. They say the H5N1 virus could mutate and
cause a human pandemic. Experts say domestic poultry or smuggled pet
birds could bring the virus into the U.S. Others say it will arrive this fall
by way of migratory birds. The GLRC’s Christina Shockley reports:


Millions of birds will migrate across the globe along major flyways in
the coming weeks. Some birds from Asia will fly to Alaska to reach
summer nesting sites. If those birds carry the H5N1 strain of avian flu
with them, they could transmit the virus to birds that will later stop in the
United States.


Steve Schmitt is the lead veterinarian for Michigan’s Department of
Natural Resources.


“The pacific flyway far and away has the majority of birds that nest in
Alaska and then move south through the fall into Mexico.”


That means if the virus arrives in the lower 48 states via migratory birds,
it would likely arrive first in a state along the Pacific coast.


For the GLRC, I’m Christina Shockley.

Related Links

Making Power Out of Pollution

  • Ford Motor Company installs a permanent Fumes to Fuel system at Michigan Truck Plant after a successful pilot program at the Ford Rouge Center last year. (Photo courtesy of Ford Motor Company)

Pollution from factories and other places might be dollars just going up in smoke. But a promising new technology turns these ordinarily troublesome waste products into something that’s especially valuable these days: cheap electricity. The Great Lakes Radio Consortium’s Julie Halpert has this
report:

Transcript

Pollution from factories and other places might be dollars just going up
in smoke, but a promising new technology turns these ordinarily
troublesome waste products into something that’s especially valuable
these days: cheap electricity. The Great Lakes Radio Consortium’s Julie
Halpert has this report:


Remember the children’s story, where Rumpelstiltskin was able to take
straw, a cheap, abundant material, and magically transform it into
precious gold? Well, these days, cheap energy is like gold, and one
company has found a way to similarly generate power from pollution.


(Sound of engine running)


To see how it works, I’m standing on a roof sixty-five feet above the
ground. This is where Ford Motor Company maintains its pollution
control equipment. There are rectangular gray metal boxes as tall as I am
all over the roof, so many that we can barely walk between them. Under
the roof, they’re painting trucks. The paint emits vapors that Ford is now
capturing with these big boxes of machinery.


Mark Wherrett is Ford’s principal environmental engineer.


“We’re here at the Ford Motor Company Michigan truck plant, where the
paint solvent is collected from the process and used as a fuel to make
electricity in a Stirling Engine.”


The Stirling Engine is key. Here’s how it works. Ford’s using an engine
developed by STM Power. STM is using an old engine style called a
Stirling Engine that was once used in place of a steam engine. Instead of
using coal or wood to heat up water and make steam, STM burns the
paint fumes to heat up hydrogen and power the engine. The fumes will
generate 55 kilowatts of electricity. That’s enough to power 11 homes.


There’s not as much pollution emitted at the end, since burning can be
adjusted to temperatures where pollutants are reduced. Wherrett says
that for Ford, the technology simply has no downsides.


“The fumes to fuel process takes the environmental emissions and turns
them on their head, so instead of them being a waste product that we
have to dispose of, we can then turn it into a commodity where we can
then use that to make electricity and use that in our plant systems.”


And that means Ford doesn’t have to purchase as much power from the
grid.


Dorrance Noonan is CEO of STM Power, the company that’s redesigned
the old engine. Noonan says Ford is a perfect candidate for this
technology.


“We’re really excited about the Ford project because it offers a
tremendous opportunity to manufacturing companies and large paint
operations, who have large VOC problems that they have to deal with in
very expensive ways.”


The Ford plant is just the beginning for the company. They also plan to
deliver their portable on-site generators to landfills and wastewater
treatment plants. In that situation, methane gas is used as the fuel to
generate electricity. Noonan says his company has a bright future.


“Well, in the next couple of years, we see strong penetration in our two focus
markets, which are the landfill markets in the U.S. and the wastewater
treatment markets in the United States, and then we see that expansion
going outside of the United States to Europe and eventually to Asia.”


There are some skeptics.


Dan Rassler, with the Electric Power Research Institute, says STM’s
technology does have the potential to create viable new sources of
energy, but more companies need to actually start using it before he can
know for sure, and he says that right now the technology is still too
expensive for many companies.


“We’d like to see the capitol costs of these systems be lower than where
they are today.”


Right now, an STM unit costs $65,000. Rassler would like to see overall
costs cut by 10 to 20 percent. He says costs could decrease as more of
these units come on line.


STM CEO Dorrance Noonan says the costs are comparable to competing
on-site generators, and these expenses will be offset by using the free
fuel used to generate electricity that his engines provide. Noonan says
that continuing high natural gas prices will be his technology’s best
friend, as companies strive for ways to reduce energy costs.


For the GLRC, I’m Julie Halpert.

Related Links

Combating Inland Invasives

  • Eurasian Watermilfoil is one of the non-native species that has invaded inland lakes. (Photo courtesy of National Park Service)

Invasive plants, fish and other creatures are threatening many inland lakes. Environmentalists and property owners are trying to stop the spread…before the invaders dramatically alter the smaller bodies of water. The Great Lakes Radio Consortium’s Ann-Elise Henzl reports:

Transcript

Invasive plants, fish and other creatures are threatening many inland
lakes. Evironmentalists and property owners are trying to stop the
spread…before the invaders dramatically alter the smaller bodies of
water. The Great Lakes Radio Consortium’s Ann-Elise Henzl reports:


It’s strange to think that plants and animals from Europe, Asia and Africa
are living in small lakes in the Midwest. Boaters have taken invaders
there…after picking them up in the Great Lakes.


The big lakes are home to more than 160 aquatic invasive species,
including Eurasian Watermilfoil. The stringy plant grows in thick
clusters that get up to 12 feet tall.


“I have seen lakes where if you fell out of the boat in these massive
weeds and you weren’t wearing a life jacket, I don’t care how good a
swimmer you are, you would sink. You can not struggle your way
through these thick entanglements of weeds.”


Ted Ritter leads an effort to reduce aquatic invasive species…in
Wisconsin’s Vilas County.


(Sound of pontoon motor)


On one afternoon he takes his pontoon boat on a lake that had an
infestation of Eurasian Watermilfoil.


“It is a very aggressive plant and it has no natural predators to control its
growth, it grows up to two inches a day.”


When Eurasian Watermilfoil finds conditions it likes, it takes over
quickly. A piece as small as two inches can break off, and float away to
create a new plant.


Eurasian Watermilfoil is widespread in northern Michigan… northern
Wisconsin and other places. It’s one of dozens of aquatic invasive
species on the move in the region.


One of the worst invaders is zebra mussels. They can ravage a lake’s
ecosystem.


(Sound of motor boat)


So far, they’ve made it to just one lake in northern Wisconsin. Mike
Preul with the Lake Superior Chippewa scuba dives there, to count the
mussels. Three years ago, he found 7 adults per square meter. This year,
he counted more than 14-hundred:


“They’re still increasing. What they’ve seen in other systems is that just
like with any other exotic species they’ll come in, the population will
explode, they’ll kind of eat themselves out of house and home, and then
they’ll come down to a level and reach a steady state.”


No method has been discovered to get rid of zebra mussels, but there are
ways to control some invaders.


Herbicides can be used to kill Eurasian Watermilfoil, and some property
owners chip in to buy aquatic insects to kill the plants.


Les Schramm did that on his local lake:


“As the larvae hatches it burrows into the stem of the Eurasian
Watermilfoil and sort of eats out the center vascular part, and it falls over
and dies.”


People fighting aquatic invasive species say it’s like fighting weeds in a
garden — the work never stops and it can be expensive.


Ted Ritter of Vilas County says it costs thousands of dollars to treat a
lake once. So, often people do nothing.


Ritter says that can hurt the environment. He says it can also threaten the
economy, in areas like northern Wisconsin that rely on tourism.


Ritter says the invaders can reduce the appeal of a lake. He mentions a
plant called “curly leaf pondweed.” When it dies in the middle of
summer, it creates algae blooms that look like slimy green pillows:


“When people arrive at resorts and they look out and they see that very
unappealing lake they say ‘I’m not staying here,’ and they go somewhere
else. When realtors bring prospective buyers out to look at a property,
people get out of their car and they go right to the lake and they say ‘oh
my, I’m not even interested in looking at the house. This lake is
horrible.'”


Because it’s so difficult to control invasive species, Ritter and others
fighting the invaders focus on prevention.


Local volunteers and workers from the Wisconsin Department of Natural
Resources spend hours at boat landings. They urge people to clean their
boats, trailers, and fishing gear thoroughly when going from lake to lake,
that can keep unwanted plants and creatures from traveling along.


For the GLRC, I’m Ann-Elise Henzl.

Related Links

Beetle Threatens Anishinabe’s Ash Trees

  • Emerald Ash borer is a type of beetle that is threatening black ash trees. (Photo courtesy of USFS)

American Indians have been making baskets from the wood
of black ash trees for hundreds of years. Now, they see that tradition threatened by a beetle. The emerald ash borer has killed millions of ash trees in Lower Michigan over the past few years, and Indian basket makers are preparing for the day when their grandchildren may no longer find black ash. The Great Lakes Radio Consortium’s Bob Allen
reports:

Transcript

American Indians have been making baskets from the wood of black ash trees
for hundreds of years. Now, they see that tradition threatened by a beetle. The
emerald ash borer has killed millions of ash trees in Lower Michigan over the
past few years, and Indian basket makers are preparing for the day when their
grandchildren may no longer find black ash. The Great Lakes Radio
Consortium’s Bob Allen reports:


(Sound of museum)


The Anishinabe believe the black ash tree is a gift to their people, and they say
its carried them through many hard times. The story of the baskets is part of a
display in the Ziibiwing Center at the Saginaw Chippewa Reservation in
central Michigan.


Judy Pamp is assistant director of the Center, and she remembers how
important baskets were when she was growing up.


“If we ate it was because there were baskets to sell or trade, and it went from
that being the thing that sustained us to where now it’s more of a an art and a rare art,
and that you do in limited quantities.”


Pamp comes from a long line of basket makers, and she’d like to pass on the
skills to her granddaughter, but she says the baskets aren’t the most
important thing… rather it’s a sense of connection among the generations.


“You know the whole family pulling together, the whole community pulling
together to help one another out… that everybody was important and
everybody had their role.”


Some family members may be good at one part of the basket making, and
there’s plenty of work to divvy up. First, there’s going into a swamp to find a
black ash tree, cut it down and haul it out.


(Sound of pounding)


Then, there’s peeling off the bark, and pounding the wood into strips, called
splints, for baskets. All that can take 25 hours of hand labor. Then, it’s
another 6 or 8 hours to weave a basket. Without the trees, basket makers worry
they may lose that closeness of working together.


The emerald ash borer isn’t on tribal lands yet, but it’s in
two neighboring counties. Scientists say it’s only a matter of time before the
beetle invades the reservation and wipes out the ash tree. The invasive pest got
to the U.S. in cargo shipped from Asia. Despite quarantines the bug continues to
spread because people move infested firewood, timber or landscape trees.


Deb McCullough is an entomologist at Michigan State University. She
concedes ash trees in Lower Michigan are goners.


“Took me a while to get my mind around that. You know we’re going to see
somewhere probably in the neighborhood of four hundred million ash trees in the forests
of lower Michigan that eventually are going to succumb to emerald ash borer
unless something really amazing happens in the next few years.”


McCullough says they’re looking for a way to help trees resist the insect, or a
predator to keep it in check, but it might be years before a solution is found.
So, the tribes are looking at their own ways to deal with the ash borer.


(Sound of splint pulling)


One idea is to harvest a whole bunch of black ash splints for baskets and freeze
them to use later. That would keep basket making going for a while.


(Sound of basket maker)


Another plan is to collect and save seeds from black ash trees.


Basket maker Renee Dillard says someday maybe trees can be replanted from
seed, but she says that means forty or fifty years before any wood is
harvestable, and she doesn’t think she’ll be around then to teach her
grandchildren how to choose the right tree and pound out the splints.


(Sound of pounding)


“As a people, we’re pretty resilient and we can adapt to change. It’s just that we’re
losing an important part of that whole black ash process, and I don’t want my great
grandchildren to just make baskets. They need to understand the whole process because
it’s done carefully and prayerfully.”


Dillard follows the old ways. She lays down tobacco as an offering of thanks for the tree,
and she believes this calls her ancestors to witness her use of the gift.


The Anishinabe don’t know why the emerald ash borer is taking their trees at
this time, but their tradition teaches for every hardship there will be an answer
and something to balance the loss.


For the GLRC, I’m Bob Allen.

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Indoor Shrimp Farming: A New Market?

  • Russ Allen breeds and grows thousands of shrimp in a barn in his backyard. The entire process is contained. There's no water coming in or going out, and there's no waste leaving his farm. (Photo by Corbin Sullivan)

Recently, shrimp surpassed tuna as the most-consumed seafood in the United States. Most of the shrimp Americans eat is produced in Southeast Asia, India, Mexico and Brazil. Russ Allen wants to change that. He’s opened one of the world’s few indoor shrimp farms in the Midwest. Allen says his operation meets an obvious market demand, is good for the environment, and presents a new economic opportunity for the country. The Great Lakes Radio Consortium’s Erin Toner reports:

Transcript

Recently, shrimp surpassed tuna as the most-consumed seafood in the
United States. Most of the shrimp Americans eat is produced in
Southeast Asia, India, Mexico and Brazil. Russ Allen wants to change
that. He’s opened one of the world’s few indoor shrimp farms in the
Midwest. Allen says his operation meets an obvious market demand, is
good for the environment, and presents a new economic opportunity for
the country. The Great Lakes Radio Consortium’s Erin Toner reports:


In a big blue barn in Russ Allen’s backyard, there are thousands of
shrimp… beady-eyed, bacteria-munching, bottom-feeders.


Here, the life cycle of the shrimp starts in the breeding center, where
two big tanks of water mimic a place 150 feet deep off the shore of the
ocean where the water quality and temperature are stable. Allen says
it’s the perfect environment for shrimp to mate.


“Like in just about all animals the male chases the female, and they do a
little courtship dance, and then the male will deposit a spermatophore on
the female and when she spawns, the eggs pass through the
spermatophore, are fertilized and then go out into the water.”


A few months later, the shrimp end up in the production room where all
they do is eat, and sometimes, if they get excited or spooked, they jump
right out of their tanks.


“They don’t like light…”


“Oh (laughing)! Do you ever have them hit you as you’re standing
here?”


“Oh yeah, that’s why we have the nets up so they don’t jump.”


Russ Allen has been farming shrimp for three decades. He started in
Ecuador, and then went to Belize, where he started the country’s first
shrimp farms.


Allen and his wife moved back to Michigan in 1990, when he started
designing his indoor shrimp farm. It finally opened for business about a
year ago, and now, he’s selling all the shrimp he produces.


(Sound of shrimp market)


Allen says his indoor shrimp farm is one of the first of its kind in the
world. There’s no waste leaving his farm, so pollution’s not an issue,
and because there’s no water coming in or going out, there’s no danger
of introducing diseases into his system.


Allen says an indoor farm also moves shrimp farming away from fragile
coastal ecosystems. That’s where most of the industry has developed
around the world.


“In a place like the United States with all the development on the
coastline and land costs, you can’t really do it anywhere near the ocean
anyway. So, if you’re going to have a viable shrimp farming system in
the United States, you need to move it away from – you know – these coastal areas.”


But indoor farms haven’t always been a viable option, either.


In the 1980s, a handful of them opened in the U.S., including a big one in
Chicago. They all failed because the technology didn’t work quite right,
and because the cost of production made them unable to compete with
outdoor farms.


Bill More is a shrimp farming consultant and vice president of the
Aquaculture Certification Council. He says now, indoor shrimp farmers
have a better chance of making a go of it.


“Coming from third-world countries, there’s been a lot of issues with
illegal antibiotics being found in shrimp. There’s been environmental
and social issues that environmentalists have come down hard upon. It’s
sort of prompted the opportunity for a good indoor system where
you could manage those and you didn’t challenge the environment.”


But More says creating and maintaining a clean, organic indoor shrimp
farm is still very expensive, and it seems an even bigger problem now
that the price of shrimp is the lowest it’s been in a decade.


Shrimp farmer Russ Allen says he’s invested several million dollars in
his business. He’s the only guy in the game right now, which he
admits is good for business, but he doesn’t want it that way. He says
he’d like to see the industry grow in Michigan, and throughout the
country.


“In order to do that the government has got to be a partner in this, and
that has been the challenge… that when you don’t have an industry, you
don’t have lobbyists and nobody listens to you and you can’t get an
industry until they do listen to you. So, that’s been our real challenge
right now.”


Allen says he wants the government to offer tax breaks and other
financial assistance to the aquaculture industry like it does to other
sectors of the economy, but he says he can’t even get some local elected
officials to come and see his shrimp farm. He says with so many
companies moving jobs and factories overseas, he thinks government
leaders should be looking for ways to help new and perhaps
unconventional industries like his, grow.


For the GLRC, I’m Erin Toner.

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