Maui Invasive Species Committee (MISC)

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Nominations now being accepted for the Malama i ka Aina Award

Posted on April 22, 2014 by Lissa Strohecker

Christina Chang of Lokelani Ohana, a farm in Waihee, Maui, accepts the Malama i ka Aina Award. Presenters from left to right are Teya Penniman of MISC, Cas Vanderwoude of the Hawaii Ant Lab. and Rob Parsons with the County of Maui. Chang was recognized for her efforts to stop the spread of the little fire ant on Maui.

Christina Chang of Lokelani Ohana, a farm in Waihee, Maui, accepts the Malama i ka Aina Award. Presenters from left to right are Teya Penniman of MISC, Cas Vanderwoude of the Hawaii Ant Lab. and Rob Parsons with the County of Maui. Chang was recognized for her efforts to stop the spread of the little fire ant on Maui.

Do you know a landscape professional making a significant effort to stop the spread of invasive species in Maui County?

Nominations are now being accepted to honor efforts invasive species prevention efforts within Maui County.  The Malama i ka Aina Award is presented annually to a landscaper, plant provider (retail and wholesale nurseries and garden shops), or commercial/agricultural property owner/manager to recognize their efforts to keep invasive species out of Maui County.The award is a cooperative effort of the Maui Association of Landscape Professionals, the Maui Invasive Species Committee, and the County of Maui.The award will be presented June 14th at the Maui Association of Landscape Professional’s Lawn & Garden Fair at the Maui Mall.

Nominations are due May 30th, 2014.  Nominations (form available through this link:2014 Malama i ka Aina award-on-line fillable nomination) can be submitted via email to miscpr@hawaii.edu, through regular mail, MISC, PO Box 983, Makawao HI 96768, or faxed in: 808.573.-6475

Please call the Maui Invasive Species Committee if you have any questions, 808.573.6472.

Christina Chang of Lokelani Ohana, a farm in Waihee, Maui, accepts the Malama i ka Aina Award. Presenters from left to right are Teya Penniman of MISC, Cas Vanderwoude of the Hawaii Ant Lab. and Rob Parsons with the County of Maui. Chang was recognized for her efforts to stop the spread of the little fire ant on Maui.

Filed Under: Malama i ka Aina Award, News, Upcoming Events

Blessed Milk Thistle

(Silybum marianum)

Family: Asteraceae

Blessed milk thistle, or Silybum marianum, isn't so holy when it forms prickly, invasive thickets.

Blessed milk thistle, or Silybum marianum, isn’t so holy when it forms prickly, invasive thickets. Conservationists quick to eradicate it from Maui pastures. Photo courtesy of Maui Invasive Species Committee

 This thistle is native to the Mediterranean regions of Europe and North Africa. Milk thistle thrives in high fertility soils and moist areas such as riverbeds and pastures. It’s a common weed in the Western U.S. and is a noxious weed in Washington and Oregon.

 Description:

  • Robust, fast growing thistle that can grow to 2-6 feet tall
  • It has purple flowers (1.5″ to 2″ long) that are surrounded by long spines.
  • Its shiny green leaves have distinctive white veins, which give them a mottled appearance
  • The wavy leaf margin is covered in spiny edges

 Harm:

  • Milk thistle produces copious amounts of seeds (6,000 per plant) and has large leaves which will shade out other plants.
  • It also contains high levels of nitrate which are poisonous to ruminant animals such as cattle and sheep. Seeds remain viable in the soil for up to 9 years and the plant thrives in disturbance, making eradication difficult.
  • Thistle seeds have tiny tufts of hair (like dandelion seeds) which aid in wind dispersal. It can be spread accidentally in cattle feed, water, mud, vehicles, machinery, erosion and by animals. 

In Hawaii:

  • Maui – Only known from a naturalized population in the Makawao area of Maui. MISC is working to eradicate the populations. Rarely cultivated as an ornamental, blessed milk thistle is more commonly grown for its medicinal properties. If you see this plant anywhere on Maui, please report it.

Don’t confuse with:

  • Mexican poppy, also known as prickly poppy, (Argemone mexicana), is a widespread weed on Maui with similar green and white mottled leaves. It can be differentiated by its yellow poppy-like flowers (2.5” wide), and skinnier leaves. It produces a bright yellow sap when the leaves or stems are broken.
  • Bull thistle, (Cirsium vulgare), is a widespread weed on Maui that also has a purple flower and similar growth form. However, bull thistle has uniformly green leaves covered with small bumps.

For more information, see:

  • Blessed Milk Thistle article for MISC Kia’i Moku column

Filed Under: MISC Target Species, Pests Tagged With: Blessed milk thistle, Silybum marianum

Mullein

Mullein, or Verbascum thapsus, invades on the open slopes of Mauna Loa and Mauna Kea. This medicinal plant is not a good prescription for the environment. Photo by Forest and Kim Starr.

(Verbascum thapsus)

Family: Scrophulariaceae

Considered very invasive and is on the Hawaii State Noxious Weed List.
The Division of Forestry and Wildlife of the Hawaii Department of Land and Natural Resources has designated this species as one of Hawaii’s Most Invasive Horticultural Plants.

Description:

  • Herbaceous biennial that reaches up to 10′ tall by its second year.
  • Large oval-shaped leaves range in size from 3-20″ long and 1-5.5″ wide. Covered in dense woolly hairs.
  • Sends up a flower stalk in the second year reaching 10′ tall, clusters of small yellow flowers grow in a random fashion along the stalk.
  • Native to Europe, mullein is naturalized in temperate ares of the world and has been intentionally cultivated for its medical properties.

Harm:

  • Quickly colonizes disturbed areas and out-competes native vegetation.
  • Produces numerous seeds that may remain dormant for over 100 years.
  • Drought-tolerant and able to withstand cold, mullein could invade native alpine ecosystem in Hawaii in places like Haleakala

In Hawaii:

  • Hawaii Island – Common on leeward uplands 3,940-9,840 ft of Mauna Loa, Mauna Kea, and Hualalai. It occurs also occasionally occurs in areas outside these zones, including windward Mauna Loa and some coastal and arid western sites.
  • Maui – First discovered in 1986 at over 9,000′ on Haleakala. It has since been found culitvated at several locations in Kula, all known locations are under active control and surveillance.
  • Not known from Kauai, Oahu, Molokai, Lanai, and Kahooolawe.

Filed Under: MISC Target Species, Pests

Banana Bunchy Top Virus

The plant on the left is infested with BBTV. Note how the new growth is bunched together, a symptom that gives the disease its name. Photo courtesy of Scott Nelson, UH-College of Tropical Agriculture and Human Resources

The plant on the left is infested with BBTV. Note how the new growth is bunched together, a symptom that gives the disease its name. Photo courtesy of Scott Nelson, UH-College of Tropical Agriculture and Human Resources

 (BBTV)

Banana bunchy top virus  is a devastating pathogen that affects banana plants. BBTV stunts the growth of banana plants and fruit. There is no cure for this virus and banana plants will stop producing fruit and die. BBTV is spread between plants by the banana aphid (Pentalonia nigronervosa), and people introduce the disease by moving infected plant material into the area.

 Watch a video:

  • 3 minutes on Banana Bunchy Top Virus: What You Need to Know

 Description:

  • shrunken malformed leaves “bunching” at the top
  • “Morse code” dark green streaking on the leaf stem
  • mottled and streaked flowers
  • dark green streaks with “J” shape on midrib
  • presence of the banana aphid (Pentalonia nigronervosa)

Harm:

  • BBTV stunts the growth of banana plants and fruit.
  • There is no cure for this virus and banana plants will stop producing fruit and die.
  • BBTV is spread between plants by the banana aphid (Pentalonia nigronervosa).
  • People introduce the disease by moving infected plant material into the area.
  • All plants with BBTV should be quarantined and destroyed.

In Hawaii:

  • Statewide – Banana bunchy top virus was first introduced to Hawai‘i in 1989. It was first seen on O‘ahu, then the disease made its way to the Big Island followed by Kauai.
  • Maui – first detected in Pukalani in 2002. Since then, it has been found in Pukalani, Makawao, Kula, Kahului, Lahaina and Kīhei. As of 2014, BBTV is limited in West Maui, scattered in Haiku, and not known from the Keanae/Hana/Kipahulu area.

Don’t confuse with:

  • Cucumber Mosaic Virus (CMV) is also spread by the banana aphid, but does not cause significant damage to banana fruit. Symptoms are mottling and streaking flowers. CMV does not cause the “Morse code” leaf streaking pattern of BBTV infected plants.
  • Severe deficiencies of nutrients like calcium and boron cause yellowing and deformed growth of leaves.

For more information, see:

  • BBTV information from CTAHR
  • BBTV article from the MISC Kia’i Moku Column

Filed Under: Common Pests, Pests

Little Fire Ant


Find aerial treatment schedule for Nahiku here: Nahiku LFA Aerial Treatment

Little Fire Ant (Wasmannia auropunctata)

Family: Formicidae

Since the discovery of Wasmannia auropunctata on the Hawaiʻi Island in 1999, the Hawai’i Department of Agriculture (HDOA) worked closely with the local invasive species committees (including MISC), as well as the United States Fish and Wildlife Service to prevent the further spread of this ant species. The Hawaiʻi Ant Lab, a project of the Pacific Cooperative Studies Unit, is also working diligently to mitigate the threats and prevent the inter-island and intra-island spread of existing invasive ant species, including the little fire ant.

Description:

  • This ant is orange-red to light brown in color, all workers are 1.5 mm in length (half the size of a sesame seed, or as long as a penny is thick, about 1/16 “)
  • Slow-moving, easily dislodged from leaves, plants, and trees
  • Prefers moist conditions, forming colonies on the ground AND in trees
  • Native to Central and South America, LFA were accidentally introduced as hitchhikers on imported plants

Harm:

  • Delivers a painful sting when disturbed. Welts can last for weeks
  • Infests agricultural fields and farms, where they damage crops and sting workers
  • Promotes plant pests such as aphids, white flies and scale insects, which secrete plant sap that the ants eat. In turn, the ants protect these insects from natural predators and parasites.
  • Easily blown out of trees, stinging when they get are caught in hair or clothing.
  • Infests homes, beds, furniture and food
  • Has been linked to corneal clouding and blindness in pets
  • In the Galapagos, LFA attack tortoise hatchlings and sting the eyes of adult tortoises
  • Infest bee hives, preying on the larvae and eventually destroy the hive.
  • Large infestations are difficult and expensive to control

On Maui:

  • First detected on Maui in October of 2009 in Waiheʻe. Thanks in part to the early detection of the infestation, an extremely cooperative landowner, and the recently formed Hawaiʻi Ant Lab,  the 1/3 acre infestation was eradicated.
  • December 2013:  a Maui resident discovers LFA in hapuʻu logs purchased from a local garden shop. Trace-back efforts by HDOA uncover infested material shipped several places in the state.
  • June 2014:  a MISC employee surveying for LFA discovers an extremely small population of LFA in a South Maui hotel.
  • September 2014: MISC field crews working to control miconia find a 20+ acre infestation in a densely vegetated area near Nahiku.
  • January 2015: a Maui resident reports stinging ants to MISC. Delimitation surveys reveal a 5-acre infestation in Huelo and ants moved to a single location in Haʻikū.
  • Early detection and prevention are essential and the public is urged to report unusual ants on Maui to MISC at 573-6472 or HDOA at 643-PEST.
  • All known infestations have been or are currently being controlled. MISC partners with HDOA and Hawaiʻi Ant Lab in detection and control efforts, as well as public outreach activities to raise awareness about LFA.
  • MISC’s management goal for little fire ant is island-wide detection and eradication.

Pest Alerts and Publications:

  • LFA Brochure 
  • “Invasion: Little Fire Ants in Hawai’i,” A documentary by Maui Invasive Species Committee
  • Little fire ant updates from Hawaii Invasive Species Council

For more information, see:

  • “How to Test for Little Fire Ant” video
  • Spot the Ant. Stop the Ant
  • The Hawai’i Ant Lab
  • Hawaii Department of Agriculture; Plant Industry Division

Filed Under: MISC Target Species, Pests

Aliens and Space Travel-Preventing Invasive Species from Reaching the Final Frontier

Posted on February 12, 2014 by Lissa Strohecker

No hugs and kisses yet. The astronauts on Apollo 11 spent nearly 2 weeks in a quarantine facility when they returned from their moon landing to ensure they were not carrying any lunar microorganisms. Looking through the window (left to right) Astronauts Neil Armstrong, Edwin Aldrin Jr., and Michael Collins. The wives are (left to right) Mrs. Pat Collins, Mrs. Jan Armstrong, and Mrs. Jean Aldrin. Photo Courtesy NASA.

No hugs and kisses yet. The astronauts on Apollo 11 spent nearly 2 weeks in a quarantine facility when they returned from their moon landing to ensure they were not carrying any lunar microorganisms. Looking through the window (left to right) Astronauts Neil Armstrong, Edwin Aldrin Jr., and Michael Collins. The wives are (left to right) Mrs. Pat Collins, Mrs. Jan Armstrong, and Mrs. Jean Aldrin. Photo Courtesy NASA.

When the Polynesians set out to find Hawai‘i, like all explorers, they did not know what they would find so they packed carefully, bringing food and other essentials to help them survive in the new land. Modern travelers do the same, whether heading to a new town or a new planet, yet, even with all the preparations, there are still surprises—sometimes in the way those essential items can affect the final destination.

This is the first in a series of three articles looking at efforts to protect the places we journey to from the things we journey with.

The farther you travel the more preparations you make. And for exploring the far reaches of our known universe, preparations take years. When the first astronauts walked on the moon, they were understandably more interested in what they would find than what they would leave behind. But the possibility of contaminating distant lunar or planetary bodies was on the mind of many scientists at the time. Contamination could compromise scientific experiments, invalidating any proof of life on anther planet. Or an organism from earth could become invasive—altering or destroying life on a distant planet.

With these concerns in mind, the U.S. National Academy of Scientists passed a resolution in 1958 urging scientists to “plan lunar and planetary studies with great care and deep concern so that initial operations do not compromise and make impossible forever after critical scientific experiments.”  Soon thereafter, NASA’s planetary protection office was created, with a focus on preventing both forward contamination–earth microbes into space– and back contamination—alien microbes back to earth.

To reduce the likelihood of forward contamination, spacecraft are built in cleanrooms designed to reduce the amount of dust and bacteria landing on a spacecraft. Workers must wear protective clothing so they do not leave behind hair or bacteria. And once the spacecraft is built, it is sterilized, either by baking in a giant oven at 325˚F for 30 hours or by treating it with vaporized hydrogen peroxide.

The level of planetary protection varies by the type of mission and destination. For example, an orbiter mission to Mars has a lower probability of contamination than a probe actually landing on the planet, so the cleaning requirements would be less rigorous – what’s known in space lingo as acceptable levels of biological burden. .

And as for what comes back to earth? There are protocols for that as well. When the astronauts from Apollo 11 splashed down south of Johnston Atoll in the middle of the Pacific in 1969, the recovery crew passed biological isolation garments into the hatch and resealed it. Donned in their new attire, they climbed aboard rafts and were sponged off with bleach before entering a quarantine facility aboard the rescue ship where they were isolated for 2 weeks and observed for infections from lunar pathogens. Subsequent missions Apollo 12 and 13 had similar protocols, but NASA has since classified the moon as devoid of life and relaxed decontamination for lunar missions.

NASA’s planetary protection office is tasked with protecting life in the universe from accidental movement of organisms between celestial bodies.  But the goal of planetary protection is not so different from the responsibilities facing the quarantine branch of the Hawai‘i Department of Agriculture, doing its best to prevent both forward and back contamination on our little planet of Hawai‘i. The impacts of alien contamination coming into our state can be catastrophic—think fire ants or snakes. You can do your part on your next exploration to reduce the “biological burden,” even if it just means brushing your boots before a hike or checking plants you bring onto your property to ensure you aren’t introducing an “alien” contaminants.

By Lissa Fox Strohecker. Originally published in the Maui News, January 12th, 2014 as part of the Kia‘i Moku Column from the Maui Invasive Species Committee.

Filed Under: Decontamination, Kia'i Moku Column Tagged With: 2014

Invasion: Little Fire Ants in Hawai’i [video & transcription]

Posted on February 3, 2014 by MISC Leave a Comment

[Transcription] There is a new, invasive, stinging ant now established on the Big Island that threatens the environment, the economy, and the way of life on all the Hawaiian Islands.

How could this be? How could I not know about this? How could this be something that’s going to threaten me so badly and I’ve never heard of it?

When you look in the grand scheme of things, the nastiest of the invasive ants, with the greatest impact on Hawai’i is the little fire ant.

http://www.LFA-Hawaii.org/

A guy came in with his back completely covered with fire ant bites. I would guess two hundred, three hundred bites.

They’d crawl up our legs, they were on our couches, in our beds, in my dresser. Millions of ’em. They were just everywhere.

I’ve been the manager of the Maui Invasive Species Committee for more than a decade. Working with an amazing team of people, staff, partners, working to control and eradicate the most harmful species across Maui Nui. I’ve had the opportunity to work on issues statewide. Traveling to Big Island, Kaua’i, and Tahiti, I’ve seen just how devastating the little fire ant can be and my concern has only grown. I’m now convinced that without an extraordinary effort, the little fire ant will be a catastrophe for Hawai’i.

The little fire ant is native to South America. Moved by human travel and commerce the ants have spread to many islands in the Pacific with devastating impacts. In 1999, little fire ants were discovered in Puna on the Big Island. Now they are widespread in Hāmākua, Hilo, and Puna, from Waipi’o to Kalapana. By 2011 they had spread to Kona and are now established in many sites. In 1999, they were found in Kalihiwai on Kaua’i, and in 2009 a small infestation was confirmed in Waihe’e, Maui.

Dr. Cas Vanderwoude in an expert on the little fire ant who has worked on ants throughout the Pacific. He is now based in Hilo as Hawai’i’s ant specialist.

I was working on a project in New Guinea and the locals there took me to a place that was infested with little fire ants. And the impacts were so extraordinary, the problems that this species caused were so huge, that it was sort of a bit of a turning point for me, I guess, and from that time onward I spent more and more of my time working researching ways to control this species and also looking at the kind of impacts this species has on both people, and on the environment, and on agriculture.

Now with little fire ants, we have colonies with lots and lots of queens. So if one queen dies, it’s not that important because there are other queens that will take her place. And those queens will stay with that parent colony, or walk away a few feet, or a few yards so that they remain connected to the parent colony all the time where really most scientists would consider that network to be a single colony and we would call that a super colony. Super colonies can span many aces, many thousands of acres in some cases where all the workers you would find all work together and cooperate with each other.

The Hawaiian Islands are in the early stages of infestation. Unless we stop their spread, little fire ants will form massive super colonies on each island changing Hawai’i forever.

Most ants like open, sunny, kind of drier places, but little fire ants are much more of a rainforest species. They like it shady, they like it wet, and they like to live in trees, which again, most ants will nest in the ground and then actually forage on trees but these will look for places to set up their nests in the trees themselves. For an arboreal species, for a species that like to live in trees, they’re not actually very good at hanging on. So even a small bump to vegetation will result in a rain of these little ants falling down onto the person or the animal that’s bumped the tree.

We got rained upon by all of these fire ants. We didn’t know what it was, but it was very, very painful it was. Like burning after that, just had to go take a shower and it still was burning after that.

The sting’s actually very small and a lot of people don’t notice that it’s an insect that stung them. What they end up with is, a few minutes after being stung, they end up with a rash.

It was like, what is this rash? Intensely itchy, painful rash. And the itch, if you can not scratch is manageable, manageable if you don’t scratch. But kids scratch and adults scratch. And you know it’s just very hard to not go, I have a fire ant bite right here, it’s very hard for me to not dig at it right now cause it’s itching me.

They were so itchy, they were so, so itchy and I mean even a day or two after I got bit they were still itchy. They hurt for a long time and they leave scars, too cause I would scratch them I guess.

The pattern of fire ant bites is that they disappear for a while and then they come back, they disappear for a while and then they come back. And over three or four days, on day three it can be just as itchy as it was on day one. The next level of concern is infection, that’s when people dig at it. And around here when you have an open sore, you’re going to get infected. You’re gonna get a staphylococcal infection and then chances are really good that it’s gonna be MERSA and so that’s what we are dealing with at the clinic.

Yeah, well I remember the first time Michaela got bit by a fire ant. It bit her on her chest and it swelled and it was red and it was really angry looking and I think she was maybe not even a month old, I think, and I just freaked out.

You know we’d sit and the couch and you’d look on the ground and you’d see ants, you know, right under you. So we couldn’t put her on the ground.

You’d have to dust your feet off before you sat on the couch or got into bed. Shake your towels out, your clothes out. They were just everywhere. It was everywhere.

Now, it’s just really a prevalent problem. They’re everywhere. I think everybody would have a story about an infestation in their homes, in their cars. They’re all over in the schools. Prior to the very recent treatment of this school, they were in my classroom. It’s challenging in an elementary school and an edible garden. I had to let all the parents know, we have this problem. If you kid comes home with a…you know, make sure that none of them have allergies. But everybody at one point or another got a bite or two. The custodians, I mean they a hard time maintaining the campus because all of the foliage around the campus was just loaded.

So, when they did the septic tank they brought in materials and they brought in cinder, so I’m thinking that they probably brought in the ants too. We never had that problem before. And then whatever we move around, the materials, you spread around for the campus, so we probably spread it more.

People are being stung in their homes, at work, and in parks. Public land and wild places may be abandoned to the ants. Hunting, hiking, and even beach trips will not be the same. The ants have already infested parks in the Hilo area.

We notice because it’s around out tower. And then for some of the people that lay out on the grass or sometimes they lay out on the far side, over there and they come telling us they’re getting bit. It falls off the trees, too, sometimes. It falls onto the beach patrons and they come up, something’s burning their neck and…[sigh]. It’s a really bright, bright day you see the little ant cause it’s really small. That thing actually went with us to our homes. That’s the, that’s the bad part. In our cars. They spread and end up in your bed and you get a bite in the night and not a good feeling. Yeah, it’s getting worse, it’s getting worse.

But for people that live a subsistence lifestyle, that live, you know, very firmly connected with the land, that produce most of their own food and the things that they need from their own land. And they have to suffer the crop losses or the economic losses or the production losses and there’s not a lot that they can do about it.

Everywhere, there’s not, not one spot without ants. If he didn’t treat, he’d have no life, no income. So, t he ant has been here for six years and he’s been able to contain it right on his property and trying to find a way to get rid of it.

Some of the people I talk to they feel really trapped because they don’t have the ability either financially or technically to actually deal with these issues, so it just adds an extra burden to their life.

They don’t even want to eat their bananas any more. The pineapple is full of ants. The ants get into the taro. What was it like before the ants came, living here? A lot of food. It was really nice. A lot of food. Paradise. It was paradise, but they don’t give up. How long has the land in this area been a part of her family? Generations. How often do you get stung? Everyday, everyday, everyday. When the wind is really strong, don’t come outside. A lot of people have abandoned their land already. Her cousin abandoned his land, up there they abandoned they’re land. They left. They don’t wasn’t to live here anymore. They gave up.

So Tahiti is the most populated island in French Polynesia. It is also the biggest one with the tallest peaks and mountains, so it has the richest biodiversity in French Polynesia. We’ve got about 850 native plants including 550 endemics. If some colonies are accidentally moved to those higher elevation areas it would be an ecological disaster.

Like Tahiti, Hawai’i is an evolutionary showcase with an exceptionally high number of plants and animals found nowhere else in the world. Little fire ants have the ability to transform and decimate native places and species. Forest birds and ground nesting sea birds are at risk along with sea turtle hatchlings. Even the smallest creatures, bugs, beetles, and spiders are vulnerable. In some infested areas of New Caledonia, little fire ants now dominate, making up more than 90% of insects with impacts cascading throughout entire ecosystems.

Hawai’i’s got quite a remarkable number of seabirds for the area. We have 23 breeding species of seabirds. Probably 20 would be directly threatened by ants in a large way. And all of them have this really long incubation period and long defenseless period. This about a month old chick of a wedgetailed shearwater and you can see it’s pretty helpless. There’s no tail feathers or wing feathers. A big, fat, ball of down. These birds are particularly susceptible to ants during the period of time when the egg is ready to hatch. It makes a hole in the egg shell which allows ants and things to actually enter it and to start directly attacking the chick inside of the egg. If ants were to get into some of the of the low wet forests like I’ve heard that they’ve done in other areas, they may be the thing that would push Newell Shearwaters and low elevation nesting Hawaiian Petrels or other endangered species over the edge.

The effect that it has on pets. The blinding and I’m sure it’s got to be very painful for them to be constantly being bitten or stung.

At start she was loving to go in the bush. Now she stays home. She is blind.

One time we did witness a bite on the eye. He came in right after and just ferociously rubbing his eye. You know, he was in a lot of pain for a while. You could tell. A few hours, sat and just licked and rubbed his eye.

The black one who is affected the most, if I pick him up, it never fails, he’s got fire ants in his fur. I’m bitten every time I pick him up.

Every single animal we have, we have three cats and two dogs and every single one of them has a, have clouded cornea. There’s no question that the fire ants and the clouded cornea come together I don’t know how you prove it.

Being here I know, I know that’s what ‘s doing it. Feeling the stings, I’m sure that it’s the fire ants.

We’re animal lovers, yeah. They’re very much a part of the family.

When I first heard that the little fire ant had arrived on Maui, my heart sank because I knew what a threat it posed and knew what the challenges are associated with trying to control a pest species that is so small, but that can be so powerfully damaging.

When we were making a banana delivery my glasses had dropped to the ground and when I picked them up and put them on I got bit on the eye. And it was so severe. I had to, like, run to the house and put ice on my eye. I had to lay down and the thought came that, I wonder if this is the fire ant. Initially when they came out to do the testing, so they put the peanut butter sticks everywhere, where we felt the ant, we’d experienced the ant. And it came back positive. It was evident that the destruction that the fire ant can bring to an island, which is what’s happening on the Big Island is something we did not want to happen here on Maui. Then whatever contribution we could make to help prevent the fire ant from coming to Maui we were gonna make.

So Maui was a good small scale test case. And Kaua’i presents a good opportunity for a large scale test case on eradication.

Right here we’re on Kalihiwai Beach. It’s a beautiful sandy scape and it abuts this cliff side area. The ant infestation is actually along that cliff line around the corner.

And as I got to the bottom of the cliff where i go holoholo and I could feel some bites all over my shoulders and my back and I was like, ho, what is this? And then I could see some ants was on top of me. When it’s wet, you’re always grabbing trees, grabbing the rope, so I guess that’s what kinda makes ’em all come down too on you. And you’re getting bit going down the trail and it’s like, ahhh. That’s the trail we use all the time and that would be the trail I would take my son down there and having the ants fall on top of him and getting bit up, that’d be a big concern for me. I wouldn’t want that happening.

Well, some landscaper came and you know, landscaped the property down below here and two fire ants were in that particular plant and now we have a colony. It’s really bothered us and so I asked that question. How and why, where did this fire ant come from?

Historically, the little fire ant arrived to Kaua’i in 1999 on a shipment of palms. So the original infestation was only about five acres. It was believed to be eradicated, but what had actually happened was that it was brought to undetectable levels. And unfortunately now it’s about twelve to fifteen acres. Without Department of Ag’s containing it on that edge, it would have spread across that property and on to the next one. It would be devastating to have it infest this area, one of the nicest beaches on Kaua’i.

Farming is woven into Hawai’i’s history and is key to a sustainable future. Healthy are a critical component of farming. The pollination of crops, honey production, and Hawai’i’s Queen Bee industry face a new threat.

The bee industry is important wherever you are. All our hives have succumbed to LFA because LFA is a protein eater and the larval stage of the bees are very susceptible. If you have LFA and they’re close to your hive and they can get up and into that hive, they’ll probably take your hive down. I think it’s much more dangerous than the varroa mite.

Both local and export agriculture and our hopes for food security are at risk because of the little fire ant. In addition to stinging agricultural workers, little fire ants can weaken plants by farming insects like aphids and mealy bugs.

Those insects secrete a sugary substance that the ants use as a source of energy. So the ants have a huge source of energy that allows them expand and grow and farm yet more mealy bugs and scale insects which makes the plant sicker and sicker. That decline in health could result in quite substantial crop losses.

I grow macadamia nuts, coffee. I have lychee, mangosteen, orchids. Just a little bit of everything. A diversified crop farm.

I was going to grow four to eight acres of palms for hearts of palm, a couple acres bamboo nursery. So by the time we discovered them, we had millions and millions and millions. The palms are not harvestable because of the ants. I’m out of business. Totally. Little fire ant.

Now I have fire ants in my lychee crop. You’re in there with the panicles and you’re trying to grab your lychee and cut it and all that. You get them on you. I watched them as they were shaking all these ants off of them. And basically it was raining ants. Raining fire ants on them from the lychee.

The cost of trying to actually control fifteen acres when there are literally, you can ask Cas, but I’m sure hundreds of thousands in one tree. And finding people willing to work in the orchard is extremely difficult. I really think that this is the most devastating invasive that we have.

When I heard about the little fire ant I was really appalled and really scared. We’d be in very big trouble if it came into our coffee lands. We harvest off the tree and these branches are always leaning over us. Harvesting anything from a tree is going to be very, very, very difficult. And it will greatly impact agriculture. I mean, agriculture as we know it will not be here.

Wearing my hat as the chair of the board of agriculture, I see little fire ant as being a very significant threat. We need to address this quickly.

When you look at our mandate, what is it to do? It’s not just to protect agriculture, it’s not just to protect the environment, it is to protect the native biota, it’s to protect the public health. We can’t do it all. And that is very frustrating. It’s hard choices. It’s choosing between snakes or between, do we look at all the fish coming in because they may have pirahnas in them. Or do we look about what we’re not doing now which is the weedy plants. We’re so dependent on food, imported food, that we can’t let our stores or restaurants go empty. So we’re forced to get it out. Whether or not there are pests on them, we’re forced to get them out. We still get a sampling of interceptions. You know things are getting through and now what do we do from here.

So invasive species and the little fire ant in particular are very problematic because they will inhibit, I think, agricultural expansion.

So I think, it is impacting our growers. I think they’re finding that the ant is moving and where they didn’t have a problem a couple years ago, I think everyone is concerned this pest is moving from area to area and how do you deal with it. I think that’s the difficulty with this. It’s the size of the pest. This particular one is so small that you really have to look for it. Because we’re already considered a high risk pathway for the spreading of pests to the continental US, the presence of little fire ant in these nursery shipments or these flower shipments has heightened the concern that it will cause a California embargo.

California’s gotten very, very restrictive in terms of what we can export from Hawaii to their markets. So they’re, you know, they’re really kind of on the verge of closing us down.

If they find out that they cannot export their crop. Or, or sell it, at all. I think they’ll be very concerned. But because most people don’t have it, or haven’t been stung, bitten, they don’t know the effect. they don’t know that this is a very serious insect.

Because our islands are connected, you have to have real, meaningful, ongoing inspection, detection, reporting capabilities, because without that we will get it. It will become established and it will spread in the Pacific.

The ant is essentially gonna be, is here to stay on the Big Island and that’s just the reality and what we’re gonna be doing is mitigating effects, essentially forever. What we need is a good detection network so we can respond quickly and eradicate it before LFA gets a good foothold.

To do that we need more support for our inspectors. We need more inspectors. We need sniffer dogs, dog detectors and handlers. We need to have the industry, the shipping industry to be involved and supportive. We need to stop [the ants] from moving between islands. And that’s why it’s so important for people everywhere to become aware of what it looks like, what it does, how to report it, and to demand the tools and the resources to address it when it does become established. We need support from our legislators, our elected officials, county officials, federal officials, and we need everyone to be involved.

There’s on thing that that little ant really loves, and it’s peanut butter.

So you take a chopstick and thinly coat it with peanut butter on one end and lay it in the areas where you think you might have little fire ant. Be it a potted plant you’re bringing onto your property or a banana tree you’ve already planted or a palm you’ve already planted, they really do like moisture. It’s really not difficult, at all. Within forty five minutes, the sticks will have the little fire ant on them. They’re very small, but you should be able to see them. And of course if you do find them, you want to put that little stick in a plastic bag, freeze it to kill it, and then send it to the Department of Agriculture so that they can make a positive ID because there actually are quite a few stinging ants on the islands and they’re only able to actually positively ID them with a microscope.

We need for people to understand just how serious this problem is and to ask, demand, support action to stop it now while we still have a chance.

http://www.LFA-Hawaii.org/

Filed Under: Invasive Animals

Tiny beetle bores down on Hawaii coffee industry

Posted on November 15, 2013 by MISC Leave a Comment

tiny coffee berry borer beetle is seen here entering the coffee fruit.
The tiny coffee berry borer beetle is seen here entering the coffee fruit. Coffee berry borer eats the coffee bean, reducing yield dramatically. In four months’ time one beetle will produce 40,960,000 beetles. This pest is only known to be on Hawaii Island and coffee farmers throughout the state are on the lookout. Never bring green coffee or plants between islands. Photo by Andrea Kawabata, UH CTAHR.

Hawai‘i is the only state in the United States where coffee is grown commercially, and Hawaiian coffee, often synonymous with Kona, is beloved throughout the world.  Coffee farms have started springing up on Maui in recent years. “There are maybe 20 times more coffee farmers than 10 years ago,” says Sydney Smith, owner of Māliko Estate Coffee and president of the Maui Coffee Association.

But a tiny bark beetle from Africa, Hypothenemus hampei, or coffee berry borer threatens the coffee industry throughout the state. The miniscule pest was first detected in Kona in 2010. It spread like wildfire reaching north Kona, Ka‘ū, Hāwī, and Hilo. The beetle lays eggs inside of coffee berries. Its larvae hatch and begin to feed, hollowing out the bean and leaving little to harvest and roast.

“Once infestation levels exceed 50% of the cherries in the field, the coffee is not worth picking,” says Rob Curtiss, entomologist with the Hawai‘i Department of Agriculture (HDOA).  He explained that there are farms on Hawai‘i Island with 80-90% infestation.  “After [the beetles] are in the coffee [fruit] there is nothing you can do to kill them.”

People are responsible for spreading coffee berry borers, says Curtiss. Moving infested beans and bags moves the insects. A few infested beans in the back of a pickup truck could mean the introduction of the pest to a new farm—where the beetle population then explodes. Each female can lay 120 eggs, of which there are 10 females for every male. When the females mature, they find a new coffee fruit, tunnel inside, and lay eggs immediately. Their life cycle is approximately 27 days, most of which occurs inside the coffee berry. “Every 30 or so days you can multiply the infestation by about 80,” says Curtiss. “In four months’ time one beetle becomes 40,960,000 beetles.”

Coffee farmers in Kona have been working closely with entomologists and researchers at the Hawai‘i Department of Agriculture and the University of Hawai‘i-College of Tropical Agriculture and Human Resources (UH-CTAHR) to find effective ways to manage the infestation.

By combining several methods of control, some farmers on Hawai‘i Island have successfully reduced infestation levels to below 5%. This system of integrated pest management includes protocols for field sanitation, pruning, monitoring, pesticide application, harvest, and shipping. Instructions can be found in an online publication on the UH-CTAHR website titled “Recommendations for Coffee Berry Borer Integrated Pest Management in Hawai‘i 2013”

The long-term solution may lie in the discovery of an effective predator for the beetle.  According to Curtiss, coffee berry borer is an ongoing target for biocontrol research for the Hawai‘i Department of Agriculture. The department’s exploratory entomologist may someday make a promising discovery in Africa, the beetle’s native range.

Currently, an interisland quarantine restricts the movement of coffee plants and unroasted or untreated “green” coffee from Hawai‘i Island to prevent the pest’s spread to other islands.

The coffee industry on Maui and throughout the rest of the state is growing, as this farm in Kaanapalli shows. But coffee berry borer threatens the entire state. Photo by Forest and Kim Starr.
The coffee industry on Maui and throughout the rest of the state is growing, as this farm in Kaanapalli shows. But coffee berry borer threatens the entire state. Photo by Forest and Kim Starr.

Back on Maui, Sydney Smith has changed the way she runs her farm. “I used to give tours to visitors, but I don’t do that anymore…I’ve removed coffee plants from near our vacation rental.” Smith’s actions stem from concerns that a visitor may have toured an infested coffee farm on Hawai‘i Island and unknowingly be transporting a beetle. “They’re little tiny things that can get in shoes and clothes.”

Coffee berry borer has thus far only been detected on Hawai‘i Island, but Maui coffee farmers have been trained on what to look for. “It’s not if—it’s when,” says Smith.

To learn more about coffee berry borer, visit the UH-CTAHR webpage: www.ctahr.hawaii.edu/site/cbb.aspx and the HDOA webpage: hdoa.hawaii.gov/pi/ppc/cbbinfo/

By Lissa Fox Strohecker. Originally published in the Maui News, November 10th, 2013 as part of the Kia‘i Moku Column from the Maui Invasive Species Committee.

Filed Under: Invasive Animals, Kia'i Moku Column Tagged With: 2013, coffee berry borer, coffee pest, maui coffee

“Devil weed” sneaks into Hawaii

Posted on September 9, 2013 by Lissa Strohecker Leave a Comment

They saw the pitchfork leaf pattern and knew something was amiss. The unmistakable smell

Devil weed, or Chromolaena odorata growing along a trailside in the Kahuku Motocross Riding Area.

Devil weed, or Chromolaena odorata growing along a trailside in the Kahuku Motocross Riding Area. This invasive plant is new in Hawaii and only known to be in the Kahuku area. Photo courtesy of Oahu Army Natural Resources Program.

of turpentine in a crushed leaf only added to concern.  In January of 2011, a field crew with the O‘ahu Army Natural Resources Program (OANRP) was searching roadsides of the Kahuku training area on the north shore of O‘ahu. They noticed an unusual plant they had not seen before. Could it be devil weed? They sent a sample to specialists with the O‘ahu Invasive Species Committee. Their suspicions were confirmed. Devil weed, or Chromolaena odorata, lives up to its name: it has earned a place on the Invasive Species Specialist Group’s list of the worlds’ 100 worst invaders, alongside coqui frogs and brown tree snakes. The diabolical weed has already invaded Southeast Asia, parts of Africa, and Guam, and has now made to Hawai‘i.

The pitchfork pattern found in the veins on the leaf of devil weed is a key feature of the plant. Photo courtesy of Oahu Army Natural Resources Program.

The pitchfork pattern found in the veins on the leaf of devil weed is a key feature of the plant. Photo courtesy of Oahu Army Natural Resources Program.

Native to North America, devil weed is not a pest in its home range, possibly kept in check by natural enemies. Found throughout Florida, Texas, Mexico, and the Caribbean, it attracts butterflies and bees with its fragrant flowers and goes by the much more innocent name of Jack-in-the-bush or blue mistflower. But elsewhere around the world, devil weed causes despair.

A pest in fields, pastures, and wilderness areas, this tangled shrub is fast growing and fertile, covering a foot each week a day. A single plant can make 800,000 seeds. Not surprisingly, it quickly smothers crops and native vegetation. Toxic to animals, it takes over pastureland as well. The bitter oils in the plant that render it toxic are volatile and infestations of this pest fuel wildfires. As devil weed rapidly invades disturbed areas, a fire cycle begins. In Hawai‘i , where ecosystems are not adapted to regular fires and native plants do not regenerate as fast as some invasive species a cycle of fire can mean the end of native habitat, particularly on the leeward sides of the islands.

Best estimates indicate that devil weed is a recent arrival; surveys in the area in 2009 and 2010 did not detect it. Today it is scattered over 900 acres of the Kahuku training area. Julia Parish, the manager of the O‘ahu  Invasive Species Committee (OISC), says it’s possible to eradicate Kahuku populations, “But there’s a high risk for reintroduction on private vehicles coming in from across the Pacific region.  [U.S.] Customs regularly intercepts Chromolaena on contaminated equipment and vehicles.”

OISC, along with OANRP, Hawai‘i  Department of Agriculture, the University of Hawai‘i , and Hawai‘i  Department of Land and Natural Resources have teamed up to address devil weed in Hawai‘i .

A single devil weed plant can produce up to 800,000 tiny seeds that are easily spread in mud  and equipment. Photo courtesy of Oahu Army Natural Resources Program.

A single devil weed plant can produce up to 800,000 tiny seeds that are easily spread in mud and equipment. Photo courtesy of Oahu Army Natural Resources Program.

The Kahuku training area is the weekend home of the KahukuMotocrossPark, and 400 acres of trails weave through the area. Kahuku is also popular with hunters and dirt bikers. OISC has been working closely with the Hawai‘i  Motocross Association to get the word out about this demon to prevent further spread. According to Parish, “There is an extremely high likelihood of Chromolaena being on other islands.” Bikes move between islands for competitions. The tiny seeds can easily move in the mud on tires or boots.

Finding devil weed early can be tricky, as it resembles other plants.  Look for a shrubby plant,

Flowers of devil weed can be lilac to white in color and often have a tangled appearance. Photo courtesy of Oahu Army Natural Resources Program.

Flowers of devil weed can be lilac to white in color and often have a tangled appearance. Photo courtesy of Oahu Army Natural Resources Program.


sometimes sprawling, with very-triangular leaves, serrated at the edge. The leaf veins form a distinguishable pitchfork pattern and have a turpentine-like smell when crushed.  The stems are covered in short soft hairs and older stems are woody. Single flowers resemble a tangled lilac puffball and flowers grow in clusters. The Seeds have a feathery parachute to carry them on the wind.

You can help prevent the introduction of devil weed and other invasive plants. Always clean hiking and sports equipment, and vehicles and gear before bringing them interisland–even between different areas of the island–particularly if covered in soil or mud.  Not only will you help prevent the spread of invasive species, your gear will last longer. If you suspect you may have seen devil weed on Maui, call MISC at 573-6472 or email miscpr@hawaii.edu. On other islands call your island-based invasive species committee.

By Lissa Fox Strohecker. Originally published in the Maui News, August 8th, 2013 as part of the Kia‘i Moku Column from the Maui Invasive Species Committee.

Filed Under: Invasive Plants, Kia'i Moku Column Tagged With: 2013, chromolaena odorata, devil weed

The public health threat of invasive species-mosquitoes and dengue

Posted on August 23, 2013 by Lissa Strohecker Leave a Comment

Aedes aegypti is famous the world over for spreading dengue.

Aedes aegypti is famous the world over for spreading dengue. This species is not established statewide, but it has shown up at the Honolulu International Airport five times since January of 2012. Photo by Muhammad Mahdi Karim

Back in 2001, several East Maui residents started reporting fever, body aches, and rashes. One of the people sickened had just traveled in French Polynesia during a dengue fever outbreak. The Department of Health eventually confirmed 20 cases of dengue fever in East Maui and a crew hired with funds allocated for environmental emergencies went to work removing mosquito habitat. What made this outbreak interesting was that it was spread by the tiger mosquito, Aedes albopictus, common in Hawai‘i.

“We may be the only place in the world to confirm [that] dengue could be spread by the albopictus mosquito. It’s not an efficient carrier of the disease,” explains Gary Gill, Deputy Director of the Environmental Health Administration with the Hawai‘i Department of Health. “In places where dengue is endemic [regularly occurring], it is the aegypti mosquito that is the carrier.”

The invasive mosquito, Aedes aegypti, is famous for spreading dengue. Neither the mosquito nor dengue is widespread in Hawai‘i. Both periodically appear, but luckily not at the same time. Though conditions are prime as Hawai‘i is a global hub for tourism and commerce..

Dengue outbreaks in Hawai‘i are rare and typically occur when someone travels to an infested area, returns to Hawai‘i and is bitten by a mosquito, as happened in 2001. According to Gill, immediate family members and neighbors are at risk, but the common tiger mosquitoes rarely eat from more than one source. The female mosquito finds a person (or animal), and, given the chance, feeds until her belly is about to burst.

In contrast, Aedes aegypti flit from person to person, taking a blood meal from multiple people and spreading any disease carried by the bloodsuckers. Aedes aegypti is not normally found on O‘ahu. “We have not, up until last year, identified any aegypti since the 1940s,” says Gill.

In January of 2012, a Department of Health entomologist collected a trap containing what was later identified as Aedes aegypti at the Honolulu International Airport. “We’ve found aegypti five times in the last year.  Every indication is that this mosquito is either living and breeding at the airport, or it is regularly being reintroduced,” Gill says.   Mosquitoes can survive in the cabin, cargo hold, or underbelly of an airplane coming from an infested area. Aedes aegypti are originally from Africa but have spread to tropical and sub-tropical regions of the world including Mexico, Asia, and Australia.

Dengue fever is a widespread subtropical disease that is continuously present in areas with established population of Aedes aegypti.  This map shows the distribution of Aedes aegypti (blue) and Aedes aegypti and dengue fever (red). Image from Centers for Disease Control

Dengue fever is a widespread subtropical disease that is continuously present in areas with established population of Aedes aegypti. This map shows the distribution of Aedes aegypti (blue) and Aedes aegypti and dengue fever (red). Image from Centers for Disease Control

From a public health standpoint having a thriving population of dengue-spreading mosquitoes at the airport is a worst case scenario according to Gill. “A person carrying the virus walks through the airport, and then it spreads to any number of people at the airport who will then take it to wherever they are going. A single population of aegypti could easily spread dengue throughout the state. A dengue-carrier mosquito would be a concern for people who come here as much as for people who live here.”  If Aedes aegypti became established throughout Hawai‘i, it would set the stage for a consistent presence of dengue, like does in parts of Central and South America, India, Southeast Asia, and Africa.

Ongoing surveys for mosquitoes are the best way to ensure early detection of this species. The Department of Health continues to monitor mosquitoes at Honolulu International Airport, but surveys are limited to that airport and don’t include surrounding areas. Funding cuts in 2009 gutted the Department of Health. At one point 40 people worked on O‘ahu on environmental health but now only seven positions remain. Staff cuts throughout the state have left no capacity for mosquito monitoring elsewhere. “What’s at Kahului? We have no idea,” worries Gill.

The Department of Health is working with Hawai‘i’s Departments of Agriculture Transportation to explore options for mosquito surveys at airports and harbors statewide. They are working to reduce mosquito habitat at the airport, removing bromeliads and dark undergrowth and replacing it with less mosquito-friendly landscaping. Gill encourages homeowners to do the same, along with removing or changing water in outside open containers every week. For now it’s our best hope. Unless and until capacity is restored at the Department of Health, early detection of this devastating mosquito is up to the public.

By Lissa Fox Strohecker. Originally published in the Maui News, August 11, 2013 as part of the Kia‘i Moku Column from the Maui Invasive Species Committee.

Filed Under: In the field, Invasive Animals, Kia'i Moku Column, Solutions Tagged With: 2013, Aedes aegypti, Aedes albopictus, dengue in Hawaii, mosquitos in Hawaii

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