New World Screwworm enters the U.S.

NWS infestations were discovered just days apart on calves that grazed
roughly 5.6 miles from each another. (Photo via Hoosier Ag News) 

Despite ongoing efforts from the U.S. Department of Agriculture, the Mexican government and on-the-ground teams along the U.S.-Mexico border, last week the USDA's Animal and Plant Health Inspection Service (APHIS) confirmed two cases of New World screwworm in Texas livestock, reports Jennifer Carrico of Progressive Farmer. In both cases, the flesh-eating blowfly larvae were discovered in young calves about 6 miles apart in Zavala County, Texas.

After the second case was confirmed, Texas Governor Greg Abbott "issued an updated statewide disaster declaration for the NWS infestation," Carrico writes. At a news conference, Abbott encouraged the use of "all state resources to combat the NWS." Additionally, the executive director of the Texas Animal Health Commission, Budd Dinges, reminded the public that NWS isn't a threat to consumer food safety but rather poses a threat to livestock production. 

In response to the infestations, APHIS has "deployed mobile response trailers, and sterile fly releases are underway with 2 million aerially and 4 million released on the ground per week," Farm Journal reports. "Movement control zones have been activated at a 20-kilometer (12.4-mile) radius around each site."

Both NWS cases were found in Zavala, Texas, 
in red above. (Wikipedia map)

The discovery prompted the Canadian Food Inspection Agency to place "temporary restrictions on livestock imports from Texas," reports C.J. Miller of Hoosier Ag Today. "Under the order, cattle, horses and other livestock that originated in Texas or were present in the state within 21 days before entering Canada will be denied entry."

Although the USDA intensified its battle to prevent the NWS from reentering the U.S. including banning Mexican livestock from entering the U.S. beginning in July 2025, some ranchers don't think the government's response was enough.

"On Friday, about 100 ranchers in mud-splattered boots and cowboy hats packed a small high school cafeteria for a Texas Animal Health Commission briefing on screwworm, peppering officials with questions and venting frustration over what they saw ​as a slow federal response,” reports Heather Schlitz of Reuters. 

Even as the USDA works to contain NWS infestations, they are likely to spread throughout the summer months, Miller reports. Prior to last week, the NWS hasn't been found in the U.S. for at least 60 years.

USDA breaks ground on New World Screwworm sterile fly facility in Texas. So far, efforts have kept NWS out of U.S.

The NWS blowfly has not crossed into the U.S.
(USDA photo)

As part of U.S. efforts to keep the aggressive New World Screwworm out of the country, U.S. Department of Agriculture Secretary Brooke Rollins celebrated the groundbreaking of the USDA's domestic sterile fly production facility last week at the Moore Air Base in Edinburg, Texas, reports Jennifer Carrico of Progressive Farmer.

The new facility will add to the USDA's ongoing arsenal aimed at keeping the blowfly and its flesh-eating larvae from entering the U.S. from Mexico and infecting livestock, other warm-blooded wildlife, pets and even humans.

"Rollins said a year ago, the models showed NWS would have moved into the U.S. by now, but it has not and keeping the pest out has been a huge undertaking for all involved," Carrico writes. "Since last July, USDA has monitored over 7,000 fly traps on the border and has collected over 51,000 fly specimens, with all being negative for NWS."

Sigrid Johannes, senior director of government affairs for the National Cattlemen's Beef Association, told reporters, "The facility in south Texas will help give us a high enough inventory of sterile flies to fight NWS and hopefully eradicate it."

As NWS has moved closer to the U.S., with the closest case just 90 miles away, treatment has been top of mind for U.S. livestock producers. 

The flesh-eating larvae are not "a food safety concern, but rather an animal welfare concern. There would also be immediate trade implications for live animals," Carrico explains. The USDA also has a "Screwworm Response Playbook that outlines science-based strategies for officials at the federal, state, and local levels with how to coordinate response operations."

U.S. farmers battle bugs in the field, but once grains are stored, pests remain a challenge

Bugs normally eat at least 30% of a stored crop.
(Graphic by Adam Dixon, Offrange)

Storing commodities like corn or soybeans in grain bins or in shipment packing on land or at sea doesn't mean food is safe from hungry bugs. Jonathan Feakins reports for Offrange, "From bins to packaging, the amount of lost product brought about by entomological pests alone could easily rival better-known, higher-profile losses that occur in both the field or in dumpsters."

Most people know that pests like to eat crops, but they don't realize how much bugs can eat after a crop is harvested. Hannah Quellhorst, an expert in stored product entomology at Kansas State, told Feakins, "After harvest, we always lose a minimum of 30%. It can be as high as 80%, especially in regions where maybe there’s less access to inputs or secure storage."

Beetles, specifically weevil and borer larvae and adults, are among the most worrisome insects for stored grains and rice.

Researchers, including Quellhorst, have been studying the Khapra beetle, which isn't native to the U.S., but has hitchhiked into the country. "One of the top hundred most dangerous invasive species in the world, Khapra beetle larvae can be voracious, devouring their way through stored grains while leaving behind an unholy mess of skins and waste," Feekins explains.

Prostephanus truncatus, the
larger grain borer (Wikipedia photo)

The larger borer, native to the U.S., has incredible eating power that can mow through stored crops before a farmer even knows they are there. Quellhorst told Feakins, "It can chew through metal. It can chew through plastic. I have pictures of it chewing through a plastic petri dish so it can escape."

Jacob Landis, a regenerative farmer outside of Sterling, Illinois, who often battles with grain weevils, uses the colder temperatures common to the Midwest to "kill or arrest the life cycle of insects," Feakins reports.

Reducing food waste is part of the push for stored-product entomology. Landis told Offrange, “I push back on the fallacy that we need to raise bumper crops to be able to feed the world. There is just a lot of waste in the system. If we would manage our waste, it wouldn’t be as much of a concern.”

First animal case of New World screwworm in 10 years discovered in Florida

An animal wound with New World screwworm eggs,
larvae and an adult. (Photo by Samantha Gibbs, FWS)

The first New World screwworm animal case in 10 years was discovered in Florida earlier this week, prompting farm leaders and state officials to acknowledge that, although current protocols prevented this infected animal from entering the U.S., the noxious pest's reentry may be inevitable.

The blowfly larvae rode in on a horse "from Argentina [that] presented for routine inspection at an import quarantine facility in Florida," report Chris Torres and Joshua Baethge of Farm Progress. Larvae samples collected from a wound during the horse's examinations were "shipped to the National Veterinary Services Laboratories in Iowa, and it was confirmed that the larvae were New World screwworm."

Sid Miller, Texas agriculture commissioner, said "the detection is proof of the importance of USDA’s import inspection and quarantine protocols," Torres and Baethge write. According to Miller, "Our federal inspection system is working exactly as designed and is an additional biosecurity tool that will protect our industry."

At the annual Lancaster Cattle Feeders Day in late January, Colin Woodall, the CEO for the National Cattlemen's Beef Association, told fellow cattle producers, "You should be worried about [NWS] because no doubt there will be a market impact." Torres and Baethge add, "Woodall said beef producers should be prepared for an outbreak."

Using millions of sterile male NSW blowfly dispersals, the USDA and Mexican authorities have been trying to get ahead of the pest's travel through Mexico and into the U.S., where it's most likely to cross into Texas. Farm Progress reports, "The USDA also announced a new dispersal area for sterile flies going as far as 50 miles into Texas to stop the insect’s northern spread."

Female screwworm flies most often lay their eggs in the open wounds or scratches of sheep or cattle, but the larvae will feed on the flesh of any warm-blooded animal, which should leave more than cattle producers worried. Torres and Baethge explain, "Miller says screwworms can infest any of the 200 mammal species in Texas. That’s bad news for pet owners, not to mention the state’s multibillion-dollar wildlife industry."

New World Screwworm inches closer to the Texas border; flesh-eating larvae can be deadly to cattle

Brahman cows graze near Mercedes, Texas, about 11 miles 
from the Mexico border. (Photo by J. Carrico, Farm Journal)

After a few months of reduced sightings, the New World Screwworm is making news again. "Mexican authorities confirmed an NWS case in a seven-year-old bovine and a 6-day-old calf both on Jan. 5," reports Jennifer Carrico of Progressive Farmer. Both infected animals were less than 220 miles from the U.S.-Mexico border.

Despite efforts by the U.S. Department of Agriculture and Mexican authorities, NWS has inched closer to the Texas border. The parasite has spread north even as Mexico has strictly limited cattle movement across the country.

Texas Agricultural Commissioner Sid Miller told Carrico, "The screwworm now may be moving closer on its own, with no apparent link to commercial animal movement. Texas producers must act now -- stay informed, stay vigilant, and prepare immediately. We cannot drop our guard for even a moment."

NWS flesh-eating larvae can be deadly to cattle and other warm-blooded animals, including sheep, horses and dogs. Female NWS deposit their eggs in an animal's open wound, and once the larvae hatch, they eat away at the host's flesh, which can cause infection and decay. "The larvae can kill an animal in just four to seven days if not quickly detected and treated," reports Stump Denton of Farm Journal.

Since female NWS mate only once in a lifetime and store their fertilized eggs, releasing millions of sterile male NWS has been the best way to eradicate harmful larvae production. Carrico explains, "The USDA eradicated NWS from the United States in 1966 using the sterile insect technique, and it was used successfully again in 2016 in the southern Florida Keys when found in deer."

A sterile fly distribution facility at Moore Airbase in Edinburg, Texas, is expected to be up and running early this year.

Quick hits: Cold Case Card Deck to solve crimes; USPS podcast; Walmart's new milk plant; states snip SNAP snacks

Maine State Police hope their card deck 
will generate tips on unsolved cases. 
(Maine State Police photo via Midcoast Villager)

The Maine State Police are launching a Cold Case Deck of Cards initiative to generate leads for unsolved cases. "The deck features 52 of Maine State Police’s unsolved homicides and suspicious missing person cases and will be distributed to inmates in correctional facilities across the state," reports Jim Leonard of the Midcoast Villager. "This marks the first time the concept has been implemented in Maine. Similar initiatives in more than two dozen states have been credited with helping solve multiple homicide investigations."

Just because cranberries are tart doesn't mean they require a ton of sugar to become tasty. "Diabetics or anyone who wants to reduce the added sugars they’re consuming can try a few culinary tactics to lower their sugar intake while still enjoying this holiday treat," writes food scientist Rosemary Trout for The Conversation. "Don’t cook your cranberries much longer after they pop. You’ll still have a viscous cranberry liquid without the need for as much sugar. … For a richer flavor and a glossy quality, add butter. … Adding chopped walnuts, almonds, or hazelnuts can slow glucose absorption, so your blood glucose may not spike as quickly."

In a tribute to snail mail and history buffs, a new podcast, "People of Agency," offers listening excursions into "the stories of individuals who have shaped USPS over its 250-year history," reports Sean Michael Newhouse of Government Executive. The show is co-created and co-hosted by Aileen Day, a political communications consultant, and Maia Warner-Langenbahn, who co-hosts the "Well, I Laughed" podcast. In the show's first episode, the duo recount the story of Mary Katherine Goddard, who was "put in charge of Baltimore’s mail in 1775 and printed the first copy of the Declaration of Independence that listed all of its signatories."

In a bid to have more control over production and supply, Walmart recently opened its "second U.S.-owned milk processing facility in Valdosta, Ga., a $350-million plant supplying milk to more than 650 Southeast stores," reports Taylor Leach of Dairy Herd. While the company does purchase milk from local farmers, "some critics have warned Walmart buys milk from only a handful of large farms, putting smaller farms under further pressure. … The opening also follows Walmart’s recent investments in case-ready beef plants in Thomasville, Ga., and Olathe, Kansas."

Shaking your real Christmas tree before bringing it 
into your home can keep bugs from coming inside.

The holidays can be full of surprises, but discovering six-legged stowaways in your freshly cut Christmas tree shouldn't be one of them. "Bringing a real Christmas tree into your warm living room can accidentally wake up thousands of dormant bugs, turning your cozy holiday into a surprise visit from nature," reports Jenn Jordan of The Weather Channel. To prevent insect or spider visitors from entering your home, while your tree is still outside, give it more than one seriously hard shake. Many tree farms use mechanical shakers, which can also do the trick.

From the bubonic plague to cholera pandemics to deadly staph infections, bacterial illnesses often pose one of the biggest challenges to human survival. But with innovation, microorganisms can also help humans do remarkable things. "In the boulder-strewn desert east of Tucson, Arizona, miners are using sulfuric acid and bacteria to bring online the first new U.S. copper production in more than a decade," reports Ryan Dezember of The Wall Street Journal. Advances in technology are key to how this copper is mined. The enterprise uses "microbes to strip copper from ores that are otherwise uneconomical to mine." The Grand Canyon's state motto just happens to be Ditat Deus, which is Latin for "God Enriches." Last year, 70% of U.S. copper came from Arizona.

A total of 18 states have banned some non-nutritious foods from SNAP purchases. 
(Axios graph, from USDA data)

More states are restricting junk food purchases with Supplemental Nutrition Assistance Program benefits to increase the federal funding they receive. "Six more states agreed to ban the use of SNAP benefits for junk food under new deals with the Trump administration," reports April Rubin of Axios. "The new waivers restrict the purchase of non-nutritious items like soda, energy drinks, certain juices, prepared desserts and candy." While which foods and drinks are restricted varies by state, all states with added nutritional restrictions will all receive more federal dollars to support their SNAP programs.

Flora & Fauna: Delightful Federal Duck Stamps; pumpkin history; bats for bug control; the incredible shooting plant

The simple genius behind duck stamps has supported conservation for over 90 years. (Adobe Stock photo)

Undeniably adorable when waddling on land, elegant and playful while paddling in water and given to showstopping, streamlined moves while flying: Ducks give artists so many reasons to love them. Among those artists, there is a special group -- realist wildlife painters vying to win the Federal Duck Stamp award, which many artists consider a "career pinnacle achievement, comparable to the Oscars or the Grammy’s," writes Kim Kobersmith of The Daily Yonder. The simple genius behind duck stamps has supported conservation for more than 90 years. "Duck hunters over 16 years old are required to purchase the stamp annually. . . . Ninety-eight percent of stamp proceeds go directly to add protected land to the National Wildlife Refuge System. In its 91-year history, the duck stamp has raised $1.2 billion and conserved 6 million acres across the country." The Fish and Wildlife Service website features the nation's Federal Duck Stamp gallery. 

How pumpkins evolved from a humble staple to a "spicy fall obsession" is a tale that began 9,000 years ago in ancient Mexico, writes extension specialist and horticulturist Shelley Mitchell for The Conversation. "I educate the people about the plant’s storied history and its prominence today." Mitchell explains that Native Americans grew pumpkin crops "even before [they grew] corn and beans." Being completely edible, pumpkins are a versatile crop, and early American settlers learned that growing them in North America was easier than in Europe. Read Mitchell's full history about this adaptable member of the squash family here.

A bat researcher measures the ears of a 'chatty' evening bat.
(Photo by Michael Minasi, KUT News)

An orchard filled with stink bugs, mosquitoes and dusty moths is an evening bat's dream dinner. "The tiny brown bats fill the Texas skies each night, and collectively eat tons of insects. They’re essential for farms – including where these researchers are working: Swift River Pecans," reports Michael Marks for Harvest Public Media. "The orchard’s owner, Troy Swift, hosted the researchers so they could collect more information on the species that visit his 266-acre property . . . Swift decided to forego using pesticides on part of his pecan orchard and just let the bat population handle the bugs this year."

An autumn road trip through rural Maine is one way to find the rarest and most coveted apples. "As leaf-peepers flood the state, apple-obsessives also fan out to find oddball specimens that range from rare heirlooms to never-before-tasted seedlings," writes Jen Rose Smith for The Wall Street Journal. "As an amateur fruit fanatic myself, I’ve long wanted to taste my way through Maine’s apple underground. . . along the state’s 3,500-mile coastline." Read Smith's complete apple adventure here.

A great blue heron stands in a restored stream that was once a cranberry bog. 
(Photo by C. Jackson, The Living Observatory via Inside Climate News)

Rising temperatures in Massachusetts have left some cranberry farmers unable to grow the state's signature crop. Instead of continuing to grow cranberries in a climate no longer suited for them, some area farmers are using state assistance to "transform their bogs into wetlands, ensuring the land remains protected," reports Nicole Williams of Inside Climate News. "The shift, called a green exit strategy, has been developed by state agencies and conservationists and driven in part by farmers finding tougher competition from regions with colder climates and younger vines."

American witch hazel plants use internal 'spring' pressure to shoot
their seeds at alarming speeds. (Snapshot via bioGraphic video)

 

As an understory shrub native to the eastern U.S., the American witch hazel (Hamamelis virginiana) plant may sound boring, but it has secret powers. "For centuries, Indigenous peoples in eastern North America have brewed 'magic water' by boiling bark from the twiggy shrub and using it to treat all manner of maladies," writes Katie Garrett for bioGraphic. "Perhaps the plant’s strangest trait is how it spreads its seeds. As winter approaches, they fire their glossy black seeds across the forest floor with audible pops — sometimes launching the start of a new generation as much as 10 meters (33 ft) away from the parent plant."

Closing the border for cattle trade hurts American and Mexican livestock managers

Cattle handlers on both sides of the U.S.-Mexico border
are struggling. (Photo by Marc Hardy via Farm Progress)

The resurgence of the New World screwworm blowfly and its flesh-eating larvae over the summer prompted the U.S. Department of Agriculture to shut down live cattle trade between the U.S. and Mexico in July. The closed border has hobbled businesses in both countries.

Feedlot owners in Texas, who make their living caring for Mexican cattle after they pass through the U.S. port of entry, have seen their herd sizes and incomes dwindle. Jennifer Carrico of Farm Progress reports, "Mark Rogers, owner of Rogers and Sons, Ltd. Custom Cattle Feeders in Dimmitt, Texas, has fed Mexican cattle for over 25 years. The border closure has lowered his cattle number to 70% of the feedyard's capacity compared to a year ago."

On the Mexican side of the border, Omar Gonzalez, who is Rogers' cattle broker, is also struggling. He told Carrico, "Screwworm isn't a problem up here in the Northern Plains of Mexico, and now we are having to find a place to put these cattle that normally go to the U.S."

Mexican ranchers aren't just looking for lots to hold cattle, but also for corn to feed them and packing facilities, which have typically been managed once the cattle were in the U.S.

As long as the border remains shut, the "decrease in cattle coming to the U.S. not only affects the feedyards but many others in the industry," Carrico writes. "Those who find themselves out of a job include truckers, employees at the ports of entry and those who help expedite getting the cattle to the border on the Mexican side and to the feedyards on the U.S. side."

Business owners in the U.S. and Mexico worry that the border will remain closed. Rogers told Carrico, "I'm not sure what I will do or my neighbors (will do) if the border doesn't reopen."

Cotton field project helps farmers and students learn how to outsmart bugs while saving money and time

Pests are identified by AI as they fly through a light sensor
inside this trap. (Photo by D. Mcgee via The Conversation)

Researchers working to introduce precision agriculture practices to farmers and agriculture students made progress during their recent project, in which AI was deployed to outsmart cotton-eating bugs in Jenkins County, Georgia.

Jenkins County, with a population of roughly 8,700, is "among the top 25 cotton-growing counties in the state," write Debra Lam, Atin Adhikari and James E. Thomas for The Conversation. The area's farmers rely heavily on expensive pesticides to defeat "stink bugs, cotton bollworms, corn earworms, tarnished plant bugs and aphids."

The project aimed to help farmers determine when to spray their crops by combining "AI-based early pest detection methods with existing integrated pest management practices and the Georgia Cotton Insect Advisor app," according to the report. By integrating those tools, researchers learned how to "improve pest detection, decrease pesticide exposure levels and reduce insecticide use."

The project's outcome demonstrated that AI tools could reliably predict where and when pest infestations would occur, providing farmers with the knowledge they need to save money and labor costs by applying pesticides only where and when necessary.

Through the use of AI sensors, the research provided farmers with practical and intuitive ways to plan and protect their crops. According to the report, "Even after the sensors are gone, farmers who used them become better at spotting pests. . . . AI dashboards and mobile apps help them see how pest populations grow over time and respond to different field conditions."

The project was part of Georgia's ongoing effort to train more farmers and students on how to integrate precision agriculture into their farming or pest management practices. According to The Conversation's report, "The same tools could help local governments manage mosquitoes and ticks and open up more agtech innovations." 

New World screwworm detected roughly 70 miles from the Texas border as USDA efforts intensify

New World screwworm was found roughly 70 
miles from Laredo, Texas. (USDA photo)

 

The New World screwworm and its flesh-eating larvae have made their way through Mexico to hover fewer than 70 miles from the U.S.-Mexico border. "The case was reported near Sabinas Hidalgo in Nuevo Leon," reports Joshua Baethge of Farm Progress. "That city is close to a major highway connecting Monterrey, Mexico’s second-largest metro area, and Laredo, Texas."

Screwworm larvae were discovered in "an 8-month-old cow that was moved to the area from southern Mexico, which has active NWS cases," Baethge writes. Concerned lawmakers and livestock owners would like Agriculture Secretary Brooke Rollins to persuade the Mexican government to restrict cattle movement to contain the pest.

While NWS larvae will eat the flesh of any warm-blooded animal, female screwworm flies most often lay their eggs in the open wounds or scratches of sheep or cattle. The larvae are considered a threat to U.S. livestock and rancher economies as well as the U.S. food supply.

Rollins said "protecting the U.S. from New World screwworm is a 'national security priority," Baethge reports. Rollins added that "U.S. farmers and ranchers should know that the U.S. 'will not rely on Mexico' to defend the cattle industry, the food industry or 'our way of life.'"

State of Nuevo León within Mexico
(Wikipedia map)

The USDA and Mexican authorities have been working together to push the NWS away from both countries' livestock herds through sterile fly releases, animal surveillance and fly trapping and testing work. 

Since July, the USDA and Mexico "have been monitoring almost 8,000 traps across Texas, Arizona, and New Mexico," reports Jennifer Carrico of Progressive Farmer. "Currently, all the 13,000-plus screening samples have detected no NWS flies."

While the latest detection in Nuevo Leon, Mexico, appears to be limited to one cow, the USDA is still investigating. "Rollins said the U.S will be 'taking no chances,'" Baethge reports.

Flora & Fauna: Stealthy Eastern hellbenders; eavesdropping on forests; off-bottom oysters; what do wasps do?

Spotting an Eastern hellbender takes time, luck and 
snorkeling. (Adobe Stock photo) 

Taking a swim in an Appalachian river is the only way to get a glimpse of this stealthy animal that looks like it's part salamander and part alligator: the Eastern hellbender. "These rare salamanders, which can grow to over two feet long, lurk in the wild rivers of Appalachia. To spot one, you’ll need a snorkel, and some luck," reports Mihir Zaveri of The New York Times. "Hellbenders, which can live for 30 years or more, vaguely resemble large underwater lizards. . . . I heard a muffled yell from [my guide] who was floating upstream. I popped out of the water. 'Hellbender!' he shouted. 'Hellbender!'" Zavari's adventure with hellbender-in-action photos is here.

Researchers who want to know more about what's happening in Wisconsin forests have launched an eavesdropping system designed to record the sounds of birds, animals, people, weather and leaves 24/7. "Once a month, researchers hike through the woods in the Baraboo Hills to check on small boxes strapped to tree trunks. The boxes hold microphones that are running 24 hours a day, capturing the soundscape of the forest," reports Bridgit Bowden of Wisconsin Public Radio. "Bioacoustics enable researchers to get a fuller picture of the forest, the species that inhabit it and how they change over time."

Scientists seek ways for bees to spread pesticides that 
are safe for pollinators. (Offrange graphic)

To help crops stay safe from pests and molds, scientists suggest letting pollen-gathering bees do what they do best: The work. "A bumblebee prepares to leave its hive. But first, it passes through a dispenser and picks up a dusting of biofungicide, a pesticide made of mycelium, that it will soon pass on to every strawberry flower it visits," reports Leah Borts-Kuperman for Offrange. "The pest-control formula will then be transmitted from flower to flower by pollinators who will hopefully prevent the farm’s strawberries from developing the gray mold no one wants." Read more about "bee vectoring" here.

An off-bottom oyster harvesters pulls his crop from floating cages. (Photo by E. Plunk, Louisiana Illuminator)

Beset by changes in climate and natural disasters, some of Louisiana's oyster industry is delving into the off-bottom oyster business. "On-bottom culture, where oysters attach to reefs or substrate on the water’s bottom, is and has been the most popular method of oyster harvesting in Louisiana’s waters," reports Elise Plunk for New Orleans Public Radio. "The U.S. Army Corps of Engineers lists the state’s strong interest in off-bottom oyster cultivation as a way to help build resiliency into an industry under threat from sediment diversions. . . . Whether this technique can beat back worsening hurricanes, climate change and the impact of sediment diversions is still undetermined."

When I grow up, I want to be a garlic nerd. A stinky, vampire-busting garlic nerd who grows garlic from garlic seeds, which isn't common. Most garlic doesn't grow from seeds. "Ever since people began cultivating garlic — six millennia ago by some estimates. . . scarcely a single plant was coaxed to produce one solitary seed. And so it forgot how," writes Katherine Cusumano for Offrange. "About 15 years ago, a Missouri farmer named Mark Brown began trying to coax true seeds from his garlic — an attempt, essentially, to undo thousands of years of domestication." Brown's example has been followed by many garlic-obsessed planters working on their own seeds and ideas for improving the spice plant. 

The common wasp is an insect hunter.
(Adobe Stock photo)

Besides building nearly indestructible mud or paper nests and terrifying adults and children alike with the threat of their searingly painful stings, do wasps have a purpose? Ecology researcher and wasp expert Seirian Sumner wants people to know that in the world of insects, wasps are an apex predator. She told CNN News, "Wasps are nature’s pest controllers. Without wasps. . .we would be inclined to use more chemicals to control the populations of the other insects and creepy crawlies that we don’t like: caterpillars, aphids, spiders, beetles – you name it – there is a wasp that hunts it. So wasps are really important top predators in regulating all of those insect populations within the ecosystem.” 

USDA announces a new Texas facility to push screwworms from U.S.; the insidious larvae threaten the beef industry

Screwworm infestations eat their living host's flesh.
They are painful and can be deadly. (Adobe Stock photo)

In an effort to combat the threat parasitic screwworms pose to U.S. livestock and wildlife near the U.S.-Mexico border, the Department of Agriculture announced it will "spend up to $750 million to build a facility in Texas that produces sterile flies to fight the flesh-eating livestock pest," report Tom Polansek and Leah Douglas of Reuters. The production plant will be built in Edinburg, Texas, at Moore Air Base.

USDA scientists and agricultural partners have been working diligently with Mexican authorities to push the blowfly and its flesh-eating larvae southward; however, the newly announced facility signals that those efforts may not be enough to protect U.S. cattle. Texas ranchers are "anticipating the return of screwworm for the first time in decades," Reuters reports. "The U.S. eliminated screwworm in the 20th century by flying planes over hotspots to drop boxes packed with sterile flies."

The new facility is expected to "produce 300 million sterile screwworm flies per week, according to USDA Secretary Brooke Rollins," Polansek and Douglas write. Mass numbers of sterile male blowflies work to create a buffer by out-competing the fertile male flies. Female blowflies only mate once, so when they mate with a sterile male blowfly, no screwworms can be produced.

Rollins previously predicted that "such a facility would take two to three years to build," Reuters reports. During the facility's construction, the "USDA will spend another $100 million on technologies to combat screwworm. . . and hire more mounted officers to patrol the border for infested wildlife. . . The USDA has also invested in a sterile fly production plant in Mexico that is slated to open next year."

Should screwworms return to the U.S., they could devastate the cattle industry. Polansek and Douglas explain, "An outbreak could further elevate record-high U.S. beef prices by reducing the U.S. cattle supply. Rollins told Reuters, "All Americans should be concerned."

Alpha-gal syndrome, also called the 'red meat allergy,' is spreading. Lone star and black-legged ticks are to blame.

Cases of suspected alpha-gal syndrome based on confirmed laboratory evidence. (CDC map via The Conversation)

Despite being unable to jump or fly, ticks are surprisingly good at hiding in vegetation and attaching to people as they walk or hike past. When a tick attaches to a person's flesh and begins to suck blood, the tick injects its saliva -- and anything it contains -- into the person's body. Certain ticks expel alpha-gal sugar molecules into their host's body, which can, months later, leave the person allergic to specific proteins.

"This delayed allergic reaction is called alpha-gal syndrome. While it’s commonly called the 'red meat allergy,' that nickname is misleading, because alpha-gal syndrome can cause strong reactions to many products, beyond just red meat," writes entomologist Lee Rafuse Haines for The Conversation. Dairy products, gelatin and even some prescription medications can trigger a response.

Alpha-gal syndrome isn't a disease; it's a reaction to the "alpha-gal sugar molecule [that] exists in the tissues of most mammals, including cows, pigs, deer and rabbits. But it’s absent in humans," Haines explains. "When a big dose of alpha-gal gets into your bloodstream through a tick bite, it can send your immune system into overdrive to generate antibodies against alpha-gal. In later exposure to foods containing alpha-gal, your immune system might then launch an inappropriate allergic response."

Once a person is exposed to the alpha-gal sugar protein through a tick bite, it can take months for an allergic reaction to occur. Syndrome symptoms can "range from hives or swelling to crushing abdominal pain, violent nausea or even life-threatening anaphylactic shock," Haines adds.

Alpha-gal syndrome is commonly blamed on the lone star tick bites, but other ticks can spread it as well. In North America, tick bites from the lone star tick and the black-legged tick, also called a deer tick, can cause alpha-gal syndrome. Scientists are also looking at other species of ticks found in the U.S. as possible culprits.

Even as alpha-gal syndrome spreads in the U.S., not all medical professionals have experience with it. Haines writes, "A study in 2022 found that 42% of U.S. health care practitioners had never heard of alpha-gal syndrome." 

An in-depth look at screwworms and the USDA response to keep the problem from spreading in the U.S.

An adult female screwworm fly can lay up to 300 eggs
at a time. (USDA photo via Offrange)

 

Hollywood horror flicks can't hold a candle to the gruesomely parasitic screwworm. The flesh-eating larvae were eradicated in the U.S. nearly 60 years ago, only to reappear in South America and then migrate back into Mexico, where the Department of Agriculture has played hardball at the border, trying to keep the insidious pest from re-entering the states.

Luckily for cattle and other mammals, the screwworm, which is a type of blowfly's larva, isn't even a particularly effective parasite because it inevitably kills its host.

Female Cochliomyia hominivorax fixate on the smell of blood from any wound as a place to "lay their eggs — up to 300 at a time. These hatch out spined maggots that anchor themselves into flesh, then proceed to eat their way through it, sometimes deep into muscle," reports Lela Nargi of Offrange. "If it’s deep enough, the host animal cannot survive."

The USDA continues to use a multi-pronged approach to control screwworms:

• In May, U.S. Secretary of Agriculture Brooke L. Rollins suspended the import of live cattle, horses, and bison through U.S. ports of entry along the Mexican border, aiming to curtail entry possibilities while providing time to prepare and counter any screwworm infestations. While Rollins announced a phased reopening of the southern ports this July, the plan comes with heightened and constant monitoring.
• The plan includes the incremental release of thousands of sterile male screwworm producers with heavy monitoring by U.S. and Mexican scientists. The mass numbers of sterile screwworm-producing blowflies work to create a buffer by out-competing the fertile male flies. Since a female screwworm blowfly can only mate once in a lifetime, when she mates with a sterile male blowfly it insures that her eggs will never hatch -- no matter how many eggs she lays.
• Experts can also trap and measure the ratio of sterile to fertile male screwworm producers in different areas. Sterile releases aim to overwhelm the wild population, which scientists can also measure through traps.
• The USDA also employs teams affectionately known as "tick cowboys" who patrol borders on horseback, looking for any signs of illness in herds. By scouting for any cattle that appear distressed, the USDA can quickly detect, contain, and report any screwworm (or other) infestation.

An active screwworm infestation can be treated and cured, but like the worms themselves, it's "disgusting," Nargi writes. "The maggots have to be removed before the wound is cleaned and sutured." 

Screwworms do have a natural enemy -- fire ants. Nargi writes, "Unsurprisingly, no one is talking about dispersing more fire ants to eat the screwworms."

Experts are already hard at work helping livestock owners get prepared. Philip Kaufman, an entomologist at Texas A&M, "helped compile a new screwworm fact sheet that’s being distributed to ranchers," Nargi reports. "He isn’t prone to screwworm pessimism." He told her, "We are concerned, but we are not in a crisis. People are getting trained up and we’re gonna tackle this and solve it again."

Sharing any suspicious findings is key. Kaufman told Nargi, "Reporting is the number one thing people can do. If you ignore this, that fly population is just going to get bigger and bigger and cause more of a problem for everybody else. This is a community issue.”

Flora & Fauna: Axolotl is the 'comeback king;' corn seed miracle; big snake haul; two-note song; tracking butterflies

Known for their regenerative powers, scientists are learning
from the 'adorable' axolotl. (Photo by TK, Unsplash)

Limb regeneration may sound like an 'X-Files' episode, but U.S. scientists are working on it. "With a silly smile and frilly gills, the axolotl has wriggled its way into the hearts of millions," reports Dino Grandoni of The Washington Post. "But this adorable species of salamander is also helping researchers investigate a serious medical mystery: Could the human body be coaxed to regrow a severed arm or leg? Scientists are turning to the axolotl because it is an expert at regeneration. . . .The species is also a comeback king, able to regrow not only lost limbs but also tissue in the heart, lungs and even the brain."

It's hot and humid, and corn tasseling season is almost here. "If someone writes a book about the 'seven great wonders of agriculture,' tasseling and pollination must be on the list," reports Tom J. Bechman of Farm Progress. "The process of producing hundreds of new corn kernels per plant, all from one original seed, is simple yet complex at the same time." Read how the miracle of corn happens here.

135lb female Burmese python found while radio-tracking 
a male scout snake. (Conservancy of Southwest Florida photo)

'Snakes on a Plane' might be a good summer movie fun, but in Florida, hundreds of people drop the film drama and eradicate snakes on land. "It was a milestone moment in Florida’s 25-year war on invasive Burmese pythons: an eye-popping announcement that biologists had removed 20 tons of the slithering invaders from waters in and around the Everglades in little more than a decade, as well as shattering their previous record for a single-season haul," reports Richard Luscombe of The Guardian. "The successes of the team at the Conservancy of Southwest Florida showcase the progress that has been made in efforts to reverse the snakes’ takeover of the state’s natural wilderness."

The only thing sharks can regenerate is their teeth.
That's probably enough. (Photo by Wai Siew, Unsplash)

Two notes + Razor-sharp teeth = One summer blockbuster. “Da, duh. E and F have become synonymous with tension, fear and sharks, representing the primal dread of being stalked by a predator," writes media history scholar Jared Bahir Browsh for The Conversation. "Fifty years ago, Steven Spielberg’s blockbuster film – along with its spooky score composed by John Williams – convinced generations of swimmers to think twice before going in the water. . . . I decided to take a deeper dive into the staying power of these two notes. . . "

Pollen is a way to track butterflies.
(Jozsef Szabo photo, Unsplash)

If you want to help the world be a better place for all creatures, then do one small thing to help insects: Provide an insect-friendly habitat. "This includes supporting a variety of native plants that can provide both nectar and leaves, which are food for many herbivorous insects throughout their lives. A good habitat also provides places for insects to nest, such as bare ground or leaf litter. Bigger patches are better, but even small gardens can be helpful," write Christopher Halsch and Eliza Grames for The Conversation. "At the same time, limiting exposure to other threats is important. Actions such as dimming artificial lights at night and reducing the use of pesticides can help."

How can the fluttering trails and migrations of butterflies be traced and mapped? With pollen. "Those tiny pollen grains are helping researchers study a process that until now has been largely inscrutable: the migratory patterns of insects as they move around the globe," reports Saugat Bolakhe for Knowable magazine. "Analyzing pollen collected from 264 butterflies from 10 different countries . . researchers identified 398 different plants they could use to track the butterflies’ movements."

If you get bitten by a tick, save it -- and other tips for dealing with ticks' ever-spreading presence

Illustration of a tick biting. 
(Art by Sebastian Kaulitzki, Adobe Stock)

What's to like about ticks? They are an important food source for wildlife, such as birds, lizards and bats. What's not to like? For humans, the list is long. 

Ticks can carry and spread more than 12 different "disease-causing agents including toxins, allergens, bacteria, parasites and viruses," reports Pien Huang of NPR. Across the U.S., some 31 million people are bitten by ticks every year.

Although not every tick bite ends in disease, many do. "Most reported cases of vector-borne disease (including mosquitoes) come from ticks, which can carry pathogens with terrible consequences," Huang explains. "Lyme disease is the most common tick-borne disease in the U.S., estimated to affect more than 470,000 people each year."

When it comes to ticks, working to avoid contact is the first line of defense; however, knowing what to do if you find one attached or have suspicious symptoms such as a rash is just as important.

If you find a tick attached, remove it immediately, but place it in a plastic bag or container it can't escape. Huang writes, "Identifying some key information about the tick can help determine your risks. That includes what kind of tick it is, whether it's in the nymph or adult stage and how long it's been feeding on you." 

The University of Rhode Island's website contains tick identification tools and instructions on how to submit the tick's photo to a tick-tracking expert.

An engorged deer tick. (CDC photo)

The ever-growing list of diseases ticks carry often depends on geography, although warming temperatures have led some tick species to spread into new regions. "In the past 20 years, scientists have discovered at least seven new tick-borne pathogens in the U.S.," Huang reports. "The mid-Atlantic recently saw its first fatal case of Heartland Virus."

For people heading outdoors, Huang provides this tick-avoiding guidance from CDC experts:

• Do careful and frequent tick checks on yourself and your family members and pets.
• If you're hiking, it helps to stay in the middle of a well-maintained trail, since ticks tend to hang out in the shrubs and foliage around the edge.
• Treat outdoor clothing with permethrin, a chemical similar to chrysanthemum extracts that stops ticks from biting.
• Additionally, treat your exposed skin with EPA-registered insect repellents containing DEET, picardin, or other active ingredients that deter ticks. (Use the EPA's search tool to find one that works.)

The cicadas are here. Their emergence is the 'biggest insect event on the planet.'

                  Emerging from underground, cicadas march toward metamorphosis. (BBC Video)

A familiar song of summer buzzes from trees, echos from backyards and reverberates through forests. It's cicada Brood XIV's emerging and living above-ground tune traveling across sound waves from "northern Georgia up into Indiana and Ohio and eastward through the mid-Atlantic, extending as far north as Long Island, N.Y. and Massachusetts," write Chris Simon and John Cooley for The Conversation.

As evolutionary ecologists, Simon and Cooley study periodical cicadas to "understand questions about the natural history, genetics and geographic distribution of life," they write. While each cicada species has a different "song," all their vibration-lad "singing" is part of the insect's mating ritual.

Female cicadas from Brood XIV "will lay hundreds of eggs inside small tree branches. Then the adult cicadas will die," they explain. "When the eggs hatch six weeks later, new cicada nymphs will fall from the trees and burrow back underground, starting the cycle again."

Each color on this map represents a different periodical cicada brood. Brood XIV is darker green extending from the Midwest to eastern Mass. (University of Connecticut map via Conversation, CC BY-ND)

Cicada brood documentation dates back to entomologists from the mid-1800s. Simon and Cooley have been tracking and "verifying periodical cicada records and updating maps since the late 1980s," they add. "We listen for species-specific songs and then record the cicada species identity on computers, with their GPS locations. Often we’ll stop to examine a patch of forest. If the cicadas are singing, we note whether the chorus is light, moderate, loud or distant."

Simon and Cooley think cicadas have information to share about our changing planet. They write, "Our research suggests that climate warming has resulted in more four-year-early straggling events that are increasingly dense, widespread and likely to leave offspring. . . . Understanding how these four-year shifts are encoded in cicadas’ genes is a mystery that remains to be solved."

Quick hits: Bakery sign debate; global cheese demand; Marlboro man's mystique; discover the Stargazer Highway

Local art students created the bakery sign, but a code enforcement 
officer said it had to come down. (Leavitt's Country Bakery reel photo)

Even in closely-knit small towns, not everyone gets along. In Conway, New Hampshire, town officials and Sean Young, a bakery business owner, have been in a legal dust-up since Young installed a front signage mural made by local high school students. "But the town of Conway told Young the painting wasn’t a mural, it was a sign that exceeded the town’s legal size limit and would need to be taken down," reports Kyle Melnick of The Washington Post. "Young left the mural up, and sued the town the following year, claiming its ordinance violates the First Amendment." In May, a judge ruled that Leavitt’s Country Bakery sign, with its giant muffins, donuts and beaming sun, could stay.

The love of cheese products is going global, which is good news for American dairy farmers. "While domestic cheese sales remain soft, global cheese demand is accelerating rapidly," reports Taylor Leach of Daily Herd Management. "Much of that growth is coming from international restaurant menus that are incorporating cheese in new and creative ways. . . . Beyond cheese, other dairy products are gaining traction in international markets as well. Whey proteins and milk proteins, in particular, are seeing increased demand across Asia."

The Marlboro man 'was always adaptable to the times.'
(Philip Morris ad via MEL magazine)

Despite the illness and death cigarette smoking has caused, the Marlboro man remains a strong, stoic, and unequivocally American icon. "The Marlboro man was something of a chameleon, in that he took on multiple meanings and was always adaptable to the times — which, more than anything else, speaks to the durability of the cowboy in American culture," reports Brian VanHooker for MEL magazine. VanHooker shares the storied history of one of the most successful ad campaigns in U.S. history. "Twenty years later, while the Marlboro Man may evoke a sense of nostalgia for some due to its beautiful imagery of the West, for so many who have had a loved one die from smoking-related illnesses, he has a much darker legacy."

Department of Agricultural Secretary Brooke Rollins announced a listing of new Farm Service Agency and Rural Development state directors tasked with implementing the Trump administration's rural agenda. During her announcement, Rollins told reporters, "Our latest additions to the USDA family are personally invested in ensuring farmers and rural America prosper." Mariah Squire of Successful Farming provides a by-state listing of new appointees, with a limited look at their professional backgrounds.

The dark night skies of the Black Canyon in Gunnison National Park, Colorado.
(Photo by G. Owens, National Park Traveler)

America's National Parks offer visual experiences rarely found in other places. A group of photographers wanted to understand more about Native American spiritual history, so they set out across the National Park's path known as the "Stargazer Highway," Eric Jay Toll writes for National Park Traveler. "More than a dozen tribes have traditional lands through which the Stargazer Highway passes, and each has sacred tribal legends explaining the stars in the skies and lessons, consequences, and morals on Earth. . . . These stories [are] along the highway, better known as U.S. 191, and many of its side roads. The road runs 1,545 miles from Mexico to Canada through Arizona, Utah, Wyoming, and Montana, passing 24 national parks, monuments, and tribal parks."

IQOS is marketed as sophisticated and 'safer' than
burned tobacco. (Adobe Stock photo)

Phillip Morris has a slick-looking new tobacco product hitting U.S. markets. "The chicly futuristic branding of IQOS, a heated tobacco product owned by Philip Morris International, is one of several things worrying researchers and anti-tobacco advocates," reports Sarah Todd of STAT. "The company is rolling out pilots of the device. . . peddling IQOS (pronounced “eye-koss”) as the 'next step in tobacco harm reduction.' The company positions the devices as a better alternative for smokers compared to cigarettes." Health advocates don't agree with the company's sales pitch and say that savvy IQOS marketing could convince some people to start an unhealthy, addictive habit. 

Ticks can transmit diseases to humans.
(CDC photo)

The problem with ticks isn't that they look creepy; they spread illnesses with alarming efficiency. Every summer it's good to review the best ways to avoid and if needed, remove hitchhiker ticks. "These vile little creatures transmit Lyme disease, babesiosis, anaplasmosis, Rocky Mountain spotted fever, and ehrlichiosis, among others, and symptoms can range from swollen joints to meat allergies," report Annemarie Conte and Doug Mahoney of Wirecutter. Click here to read "their favorite picks and the advice to keep in mind as you head outdoors this summer."