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[AgriLife Today] Agriculture tells the history of the Rio Grande Valley

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By: Rod Santa Ana
Writer: Rod Santa Ana, 956-878-8317, r-santaana@tamu.edu Contact: Dr. Luis Ribera, 956-373-5086, lribera@tamu.edu

WESLACO — As the 1800s rolled into the 1900s, agriculture in the Lower Rio Grande Valley was in the midst of a major makeover, according to local historians and agricultural experts.

Dr. George H. Godfrey, the first plant pathologist in the Rio Grande Valley is shown in the early 1950s working at the then-Rio Grande Valley Experiment Station, now the Texas A&M AgriLife Research and Extension Center at Weslaco. (Photo courtesy of Rod Santa Ana)

Dr. George H. Godfrey, the first plant pathologist in the Rio Grande Valley is shown in the early 1950s working at the then-Rio Grande Valley Experiment Station, now the Texas A&M AgriLife Research and Extension Center at Weslaco. (Photo courtesy of Rod Santa Ana)

It was changing from a livestock economy to one of irrigated farming that would eventually fuel unprecedented growth in South Texas, said Dr. Luís Ribera, a Texas A&M AgriLife Extension Service agricultural economist in College Station.

“The height of the Spanish colonial livestock economy in the Valley lasted roughly from 1770 to 1900,” Ribera said. “It was too dry to grow crops in large quantities, so the economy was based on selling standing cattle and cattle by-products to Mexico.”

Ranches sprouted and flourished in the mid-1700s because of Jose de Escandón, a Spaniard sent to the area by Spanish authorities in Mexico City. He and his followers, the Valley’s pioneers, mapped and settled the fertile region on both sides of the Rio Grande, then known as Seno Mexicano, said Karen Fort, a local historian and co-author of Images of America: Hidalgo County, Texas.

“Escandón succeeded in his task far beyond expectations in this rugged country and renamed it Nuevo Santander after his native Santander Province in Spain,” she said. “Six thousand Spaniards answered the call to settle the land here, and within five years, Escandón had established 24 villages, 15 missions and 20 ranches, complete with almost 90,000 head of cattle.”

That laid the foundation for the settlement of the Lower Rio Grande Valley and the ranching empire that would dominate the land for the next 150 years, Fort said.

“Efforts to irrigate parched corn fields near his settlements ended in failure because Escandón just didn’t have the technology to lift water up and over the high banks of the Rio Grande. Instead, crops were planted when floods subsided or in river bottoms. Away from the river, ranchers dug deep wells that were hand-operated 24 hours a day to water small crops and keep livestock troughs full,” she said.

International law invites outsiders

After the Treaty of Guadalupe Hidalgo in 1848 formalized the national boundary at the Rio Grande, extranjeros, or foreigners, began moving into the area from Europe, marrying into local families and assimilating into the Mexican culture where little or no English was spoken until the early 1900s, Fort said.

“And by the end of 1910, most of the components were in place to begin the next phase of agriculture  —  irrigated farming,” she said. “These included the centrifugal pump, the railroad, electricity, improved farming implements and what was then the largest private irrigation system in the world that helped land companies entice farmers from the Midwest to farm here.”

Between 1900 and 1910, 50 steam-engine pump houses had been built along the Rio Grande to irrigate farmland. At their height, they irrigated 1 million acres of farmland as land prices soared from 25 cents per acre in 1906 to $300 per acre in 1910, Fort said.

“Back-breaking farm labor was provided by landless locals as well as hundreds of thousands of Mexicans who were fleeing the violent and bloody Mexican Revolution of 1910 that ended the 34-year dictatorship of Porfirio Díaz,” she said.

On Oct. 6, 1923, a telegram from College Station arrived in what would soon become the city of Weslaco to advise local farmers that they had succeeded in their efforts to establish an experiment station to conduct scientific research on local crops and extend that information to growers, Fort said.

The experiment station was originally known as Substation No. 15 and immediately began research under the direction of the state’s land-grant college, Texas A&M University, then known as Texas Agricultural and Mechanical College, said Dr. Jose Amador, center director emeritus and one-time director of the Texas A&M AgriLife Research and Extension Center in Weslaco and the Texas A&M-Kingsville Citrus Center.

“The original emphasis was to find solutions for the many problems that plagued citrus, but by 1925 their research included tests on lettuce, spinach, turnips, carrots, beets, cabbage, cauliflower, corn, grapes, beans, cotton, soybeans, sugarcane and various fruits,” he said.

An annual report from Substation No. 15 in 1927 reported problems with root rot, freezes, hurricanes, salty river irrigation water and marketing.

“Insects and plant diseases seem to thrive in this climate and have taken their toll,” the report noted.

Local producers start making big bucks

Despite cyclical and persistent adversities, including uncooperative weather, poor market prices, rising production costs, insect pests and diseases, growers and the labor force persisted, Amador said.

“Despite those difficulties, agriculture here thrived; many growers made handsome profits that allowed them to pay off their land loans in short order,” he said.

The central turning point in developing the Rio Grande Valley hinged on the expanding irrigation system fed by water from two huge upstream dams and favorable water treaties with Mexico in the 1940s, said Dr. Merritt Taylor, a former economist at the AgriLife center in Weslaco and now a research center director in Lane, Okla.

“Freezes caused many land investors and farmers over the years to abandon their efforts here, which allowed the land to be resold to new investors. The strong pushed out the weak and got stronger,” he said.

Each wave of investors brought with them a new influx of money, people from the north, new equipment and new ideas, Taylor said.

The first carload of grapefruit was shipped from McAllen in 1915 and by the mid-1950s, acreage had grown to 120,000 acres of citrus. But freezes, urbanization and other factors have reduced that number to about 30,000 acres today, Amador said.

“A mild climate allowed for a year-round growing season that allowed for all kinds of crops to be grown here, but the mainstays have been vegetables, citrus, sugarcane, cotton and grains,” he noted.

Weslaco Center boosts state, local vegetable production

The Texas A&M center’s “golden era of vegetable breeding,” a highly specialized technology, is responsible for a large segment of the progress in Texas agriculture, said Dr. Ben Villalón, a retired pepper breeder at the Weslaco center and professor emeritus.

“For over 90 years in the Valley, one of the richest farming areas of Texas, scientists have solved some of the toughest problems with citrus, fruits, over 60 different vegetables and many agronomic crops, including cotton, corn, sorghum and sugarcane in the state’s only subtropical region,” Villalón said.

The search for genetic resistance to insects and diseases in vegetables began in Weslaco in the late 1930s by Dr. S. S. Ivanoff, who eventually released a cantaloupe resistant to melon aphids and downy mildew. He was the first of a long string of highly successful vegetable breeders who developed improved varieties still grown all over the world, Villalón said.

“Dr. George H. Godfrey, the first plant pathologist at the A&M center, developed the first downy and powdery mildew resistant cantaloupes in 1950, followed by the release over the next 35 years by Prof. Rumaldo T. ‘Mayo’ Correa of 15 superior cucurbit genotypes, including cantaloupes, watermelons, cucumbers, honey dews and casabas,” Villalón said.

“Between 1952 and 1985 Prof. Paul W. Leeper gained national acclaim by breeding superior tomato, lettuce and onion releases. His onion breeding work eventually led to several disease-resistant sweet, early onion varieties, including the world-famous 1015 onion.”

Villalón himself was among the center’s prolific vegetable breeders, releasing a host of viral resistant peppers that did not exist before 1970, including the world’s first mild jalapeño pepper. It would revolutionize the salsa picante industry, Amador said.

“Suddenly, mild salsas were made available to the public who consumed them at such a rate that by 1990 salsa outsold ketchup as the favorite condiment in the U.S.,” Villalón said. “Capsicums (peppers) have been around for 8,000 years, but in just 30 years we made tremendous genetic improvements to them that continue today under the direction of Dr. Kevin Crosby at Texas A&M AgriLife in College Station.”

Then-U.S. Congressman and chairman of the House Agriculture Subcommittee Kika de la Garza often referred to Villalón as “the man who tamed the mighty jalapeño,” Amador said.

Cotton becomes king

One of those stronger mainstays, cotton, was probably first produced in the area in the mid-1800s and continues to this day, but not without its problems, said John Norman, a retired AgriLife Extension entomologist in Weslaco and now a private consultant.

“Poor market prices, drought, flood, hurricanes and insects have all taken their toll on cotton here in the last 125 years or so,” he said.

Cotton acreage peaked in 1951 after a January freeze nearly wiped out citrus, similar to what happened in 1983 and again in 1989, Norman said.

“Instead of immediately bulldozing out the dead citrus trees, many farmers planted cotton between the rows of dead trees, adding significantly to what is now considered to be the high period of cotton production in the Rio Grande Valley,” Norman said.

“Officially, the acreage was recorded at 880,700 acres, but some estimates put the number closer to 1 million acres. All the other years, from 1947 to 1963, averaged about 450,000 planted acres.”

Cotton acreage, as well as cotton gins, has declined over the years, Norman said.

“Lately, cotton averages about 100,000 acres,” he said. “And the number of active gins has declined from 107 gins in 1952 to about 10 today.”

On the positive side, Valley cotton producers have broken previous records of per-acre yields three years in a row beginning in 2014.

“We went from 1,032 pounds of lint per acre in 2014 to 1,118 pounds in 2015 and 1,128 pounds per acre in 2016,” Norman said. “The previous highest yield per acre was about 860 pounds back in 1984. And all of this is due to improved cotton varieties and a very successful boll weevil eradication program that has completely prevented crop damage from that insect.”

Poor market prices and the higher cost of cotton production in the U.S. as compared to China and other countries have forced many Rio Grande Valley farmers to change the crops they grow, he said.

“Changes in technology will likely be the driving force behind how much or little cotton continues to be planted,” Norman said. “The same is probably true for every crop now grown in the Valley.”

Sugarcane elbows its way back in

Sugarcane, another storied Valley crop, was first grown in the region in 1858, according to Norman Rozeff, a retired agronomist at the sugar mill in Santa Rosa and a local historian.

“The last turn-of-the-century sugar mill in Donna ceased to operate in 1922,” he said. “It wasn’t until 1972 that the sugarcane industry resumed here in the Valley. Farmers were looking for an alternative to planting low-priced cotton and first considered raising sweet sorghum.”

After exhaustive tests at the AgriLife Research center in Weslaco led by agronomist and long-time center director Raymond Cowley to find a suitable alternative, growers settled on sugarcane, he said.

“Over 100 farmers formed a cooperative and built what was then the world’s most modern processing factory, setting the standard for sugarcane industry modernization in the world. And despite weather-related setbacks from time to time, the sugar cooperative has flourished for over 40 years and been a sizeable economic plus for the Valley,” he said.

“Mr. Cowley, an agronomist by training, insisted that sugarcane was a more suitable crop for the Valley than sugar beets and he was right,” Amador said.

Cowley and Amador, a native of Cuba and the only scientist in Weslaco with any experience growing sugarcane, traveled to cane-growing areas, including Louisiana, Florida and Mexico, in search of suitable sugarcane varieties for the Valley.

Unlike the cotton industry, sugarcane acreage has increased measurably over the decades, thanks to accumulated knowledge of the plant’s husbandry, increased yields and constant mill modernizations, Rozeff said.

“The average cane industry here is presently over 40,000 acres and the average yield has risen to well over 3 tons of sugar per acre,” he said. “Sugarcane has been a good fit for the Valley and with the use of bagasse  —  the fiber left after the cane is ground —  to generate electricity, it now takes its place as a ‘green’ renewable resource. This is certainly a goal the community obviously wants to pursue.”

Valley’s billion dollar ag baby here to stay

While its heyday may be behind it, the Rio Grande Valley’s crops, livestock and ag-related businesses continue to have an annual statewide economic impact of about $1.1 billion, Ribera said.

“Urbanization and the implementation of NAFTA (North American Free Trade Agreement) in 1995 had a profound effect on irrigated farming,” he said. “Trade, retail sales and maquiladora manufacturing now overshadow the income of agriculture here.”

While agriculture is worth $584 million in gross sales, retail store sales now account for some $7 billion annually, Ribera said.

Dr. Juan Landivar, director of the Texas A&M AgriLife Research and Extension Centers at Weslaco and Corpus Christi, said despite its drop in prominence and the persistence of challenges, agriculture is here to say.

“Our geographical location as a border state, as well as the increase in agricultural commerce across our ports of entry, open the door to invasive weeds, insects and vector-transmitted diseases that can infest our agricultural fields,” he said. “In addition, global warming threatens to increase our already high summer temperatures, increase water use and losses, and add a few generations of pests to our cropping system.”

Landivar said new scientific technologies, including biotechnology, genetic-marker assisted plant breeding and the use of modern scientific molecular tools, would result in the development of new, resilient cultivars adapted to changing weather conditions and resistant to evolving pests and diseases.

“These new cultivars and the advent of remote sensing and the use of unmanned aerial vehicles, or UAVs, are opening the door to a new dimension of precision management of crops better suited to deal with threats,” he said. “These tools, developed by Texas A&M AgriLife and others, will also continue to play a role in the future of agriculture in South Texas.”

Landivar said the spirit of South Texas farmers will prevail.

“As long as we conserve and use judiciously our water supply and protect our soils from erosion and other mismanagement, there will be a place for agriculture here,” he said. “Farmers here are resourceful, resilient and devoted. They will always find a way to produce crops better than anyone else.”

 

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Farm & Ranch

A Rancher at the Helm: Glenn Carlton

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By Savannah Magoteaux, Editor

As summer hits its peak, most people in North Texas are thinking about fair food, rodeo tickets, carnival lights and which country act they do not want to miss at the North Texas Fair & Rodeo.

Glenn Carlton is thinking about all of that, too. He is also thinking about hay.

When Carlton visited with us by phone in early July, the Executive Director of the North Texas Fair & Rodeo had about 200 acres of hay on the ground, a quick family vacation coming up, and one of North Texas’ biggest annual events already taking shape at the fairgrounds.

The event has all the things that have been part of his life from the beginning: cattle, rodeo, community, long days and work that usually happens before anyone else gets there and after most people have gone home.

“We never stop planning,” Carlton said. “Normally during the event, I’m already talking to booking agents about who we’re going to hire for next year.”

That is the pace of the North Texas Fair & Rodeo now. It is a year-round operation, a community effort and, in many ways, a moving target that has to keep growing without losing what made people love it in the first place.

That balance has been part of Carlton’s work for more than 40 years.

North Texas Carlton grew up in Eugene, Oregon, but his family’s story runs through southeastern Oklahoma. His parents were from the Tuskahoma area, near the Choctaw Nation Capitol grounds, before they moved to Oregon as a young couple.

Carlton and his sisters were born there, but he always felt a pull back toward this part of the country.

“I always told my family the first chance I got, I was going back to Oklahoma,” Carlton said. “I didn’t quite make it. I got about 30 miles from there.”

His ranching background reaches back into the Kiamichi Mountains, where his grandfather ran open-range cattle. Carlton was little then, too young to remember it firsthand, but the family stories stayed with him. One of his favorites came from an uncle, who told him the cattle were gathered with dogs.

“I asked my uncle, ‘How did y’all gather those cattle?’” Carlton recalled. “They were dog broke. They turned those dogs out in those mountains, and every cow within 10 miles would be in that pen in about 30 minutes.”

As a young man in Oregon, Carlton rode bulls, was involved in high school rodeo and got an early education in what it takes to put on an event. He was president of his high school rodeo team, and when the team decided to produce a rodeo, Carlton was part of making it happen. The facility in Eugene was new, but it was built more for horse shows than rodeo, so they brought in portable panels, gates and bucking chutes and made it work.

That means he was 17 when he produced his first rodeo.

After that, the management side of rodeo was never foreign. He worked for a stock contractor in the Northwest for several years and helped produce 20 to 25 rodeos a year, expanding his education.

“I learned a lot of production rodeos and the stock side of it, and the labor that it takes behind the scenes to make one happen,” Carlton said.

Eventually, rodeo helped get him back closer to the country he had always planned to return to. A beer company that sponsored him when he was riding bulls helped him get a job with a beer distributor in Dallas. Carlton thought he was coming down to be a salesman and hospitality guy. Instead, he was put on a beer truck.

“I learned real quick that I was going to have to work my way up,” he laughed.

He did work his way up, and the beer business eventually brought him to Denton when he was recruited by Miller of Denton. That company, now Fisher59, was a sponsor of the North Texas Fair & Rodeo. Through that sponsorship, Carlton first became involved with the fair.

“Coming from a rodeo and agricultural background, it was a perfect fit for me to get involved as a volunteer,” he said.

He began volunteering in 1985 on Texas rodeo Cowboy Hall of Famer Weldon Burgoon’s rodeo committee. The work was not glamorous. He pushed calves, moved bucking bulls and horses, set up barrels, helped get the arena ready and, when necessary, stayed late at night helping make last-minute fixes before the next performance.

A few years later, Burgoon stepped down, and Carlton was appointed rodeo chairman. He joined the board of directors in 1990 and later served as a vice president. At the time, he had no plans to become Executive Director.

The rodeo chairman role, however, was not a stretch. He already understood rodeo production, and he understood the demands of showing up night after night while still working a full-time job and raising a young family.

“It wasn’t easy, but we still have volunteers that do the very same thing,” he said.

Carlton became Executive Director in 2005 after the previous director announced his retirement. The executive board had discussed splitting the work into separate departments rather than hiring one leader, but Carlton did not believe that would work.

He told the board that if they planned to hire an Executive Director, he would apply. They went through the interview process, considered other applicants and hired him.

“That was a really good feeling, because it was something that I loved,” Carlton said. “I got to do that, and I’ve been doing it ever since.”

At the time, some believed the fair had grown as much as it could. Carlton remembers hearing that there was no more room to expand. The numbers since then tell a different story.

“Our annual income my first year in 2005 was about $400,000,” he said. “Now the fair alone, not counting our rentals and our vendor operation, does over $4 million in annual revenues. There was room to grow.”

Growth, for Carlton, has not only been measured by revenue. It has been measured in attendance, music, parking, restrooms, volunteer numbers, and community support.

Entertainment became one of the biggest pieces. Carlton was in touch with the Texas and Red Dirt music scene at a time when regional artists could draw large crowds without yet being out of reach for a fair like Denton. Artists such as Randy Rogers, Josh Abbott and Stoney LaRue brought in younger crowds, while classic country acts helped bring out a different generation.

The fairgrounds had to keep up. More people meant more pressure on the facility. Under Carlton’s leadership, the Fair improved parking services, added remote parking with free shuttle buses on busy Saturdays, increased restroom capacity and continued maintaining aging buildings. Fair Hall was remodeled again this year.

The grounds have had to be used carefully and creatively, because the fair operates on a footprint that has not changed much in decades.

While the event has grown, Carlton has paid close attention to the volunteer culture behind it. His first rodeo committee had about six people. Today, he estimates the rodeo committee alone has around 30, and the fair is operated by more than 40 committees and about 800 total volunteers.

“What that tells me is that the community, the volunteers that come out here and volunteer, they’re having fun, or they wouldn’t be doing it,” Carlton said. “It’s a social event, an annual reunion for them, and I am very proud of that.”

That same community focus extends beyond the fair’s 10-day run. Carlton said the North Texas Fair & Rodeo, along with associated organizations including the Denton County Youth Fair and the Blue Ribbon Club, puts more than $1 million back into the community each year through scholarships, support of the spring youth fair sale, donated facility use for FFA and other community needs.

“We’re really proud of that,” he said.

Carlton’s days are not limited to the fairgrounds. He still ranches, too. What began small in the early 1990s with a leased place and a handful of cows has grown into a cow-calf operation spread across owned and leased ground. Between his place, his oldest son’s place and leased locations, they run on about 2,000 acres with around 120 head.

“We do it the hard way,” Carlton said. “We own two places, and we lease five.”

One son is very involved in the operation, and the other is involved on a more limited basis. During hay season, Carlton may leave the fair office late in the day, climb onto equipment and cut or rake hay until dark while his son bales behind him.

For about 20 years, he also raised bucking bulls. He built a herd of rodeo-bred and registered cattle, bought breeding bulls from stock contractors he knew, and raised bulls that won competitions and went on to be hauled by contractors. Sammy Andrews and Benny Butler were among those who helped him build that program.

As his sons grew up and moved out of the house, the long weekends on the road became harder to justify. Around 2021, Carlton sold the rodeo-bred herd to one buyer in California and shifted his focus back to commercial cattle.

The ranching, the rodeo, the fair and the civic work all seem to overlap. Carlton currently chairs the board of Discover Denton, the city’s destination marketing organization. He sees the fair not only as a rodeo and entertainment event, but as part of the larger effort to bring people into Denton, fill hotel rooms, support local businesses and keep the city connected to its western and agricultural identity.

“I’m just glad that the North Texas Fair & Rodeo can be sitting at that table and being in this conversation,” he said.

The North Texas Fair & Rodeo has never been a static event. Its story has always included change, adaptation and the need to make room for the next version of itself.

The fair’s history goes back long before Carlton’s involvement. After World War II, the fair resumed in 1946, and in 1948, Dr. W.C. Kimbrough sold the association 22 acres of land in northeast Denton for $5. That land became the longtime home of the fair. Later, in the late 1980s, the association purchased 11 acres to the north, expanding the footprint to 33 acres. That additional land is now used for general parking and livestock parking.

By the time Carlton started volunteering in 1985, the fair was about a five-day event. A couple years later, Executive Director James Roden made a decision that helped shape its future.

The event was expanded to nine days so it could include two weekends, which also gave the fair some protection against rain.

“The idea was to catch two weekends if you had a rainout,” Carlton said. “It’s proven over the years to be very, very good rain insurance.”

A Fair That Keeps Growing

Those earlier years included several rodeo formats. There was what was then called the Black Rodeo, now called the Rodeo of Color.

There was an all-girls rodeo, team penning, a 21 and under rodeo and an open rodeo. When Carlton became rodeo chairman, he began sanctioning the rodeo with the PRCA around 1988.

The rodeo itself has continued to gain importance. Today, the North Texas Fair & Rodeo is a Fort Worth Stock Show & Rodeo qualifying rodeo, a designation that brings in more contestants and adds another layer of economic impact for Denton.

From Carlton’s point of view, that matters when talking with city leaders and local government. More contestants mean more people buying fuel, eating in restaurants and possibly staying in hotels.

“The more people that we can get to town, the stronger you look with an economic impact number,” he said.

The relationship with Denton has been important. Carlton said the City of Denton has been good to work with, and he is aware that not every event has that kind of cooperation.

That partnership was especially important in 2020, when COVID-19 shut down events across the country.

The North Texas Fair & Rodeo did not want to cancel. When the State Fair of Texas canceled that year, an opening in October became available. The fair board chose to postpone from its traditional dates and try to buy more time.

“We decided to postpone ours until October,” Carlton said. “We were basically trying to buy some more time and take it day by day, because we did not want to cancel.”

The event was eventually approved with restrictions, including 50 percent attendance, capacity limits in the rodeo arena, signage and masks available at the gates.

Carlton said they had about 50,000 masks ready if people needed them. Attendance was about half of normal, but the fair still came out financially ahead.

“We actually had the event, and the event was financially successful,” Carlton said.

That decision mattered. Carlton believes many events that canceled in 2020, or canceled for more than one year, struggled to regain momentum. Denton came back strong. The public was ready to get out again, and the fair had record years in 2021 and 2022.

Now, the fair is preparing for another major step: the future Denton County Expo Center. The fair association purchased 109 acres north of town off Interstate 35 in 2014, and Denton County has since purchased acreage around it.

Carlton said the combined site is more than 700 acres, with land bought and paid for and a tax already being collected to help support the project.

He has been working toward a new facility for decades.

“I’ve actually been working on it for 30 years,” Carlton said. “It’s exciting news, because anybody that’s been to the fair, I know it’s fun and it’s homey, but we’re in need of a new facility at this point.”

The concept includes multiple buildings, more than 100,000 square feet, climate-controlled space and a covered arena. The goal is not just to serve the fair, but to create a facility capable of hosting equine events, youth sports, RV shows, home and garden shows, construction shows and other events that Denton County is not currently able to capture.

“We often get criticized for not adding more money in our pro rodeo. We would love to do that, but can’t due to the parking. If we added more money, we would get more contestants. Where would we put them? We don’t have the parking,” he shared. “However, it’s my goal, once we get the new expo center, to add $10,000 per event. I want to make the top 15 cowboys and cowgirls come back to Denton one more time before the season is over. If you are a finals contender, you better enter Denton. That’s my goal.”

Until then, the fair continues to make the most of its current home.

It still feels like the event people have cherished for years, but today’s production is far more extensive. Long before opening day, organizers are already hard at work, with preparations

beginning months ahead and infrastructure going up. Committees are larger. Parking is more strategic. Entertainment is planned months in advance.

Every year, the fair has to be both tradition and progress.

That balance may be why Carlton has been such a natural fit.

He understands the value of the old things, but he is not afraid to adapt when the fair needs to move forward.

He is a rancher, a rodeo man, a civic leader and an event manager, but more than that, he is someone who knows what it takes to keep showing up.

In the middle of the interview, Carlton told a story from 2020, when rodeos and events were being canceled everywhere. When stock contractor Sammy Andrews arrived in Denton, he laughed and shook Carlton’s hand.

“He said, ‘You never was a very good quitter,’” Carlton recalled. “I’m not a very good quitter.”

That may be the simplest way to understand him.

Whether he is checking hay, planning next year’s concert lineup, working with volunteers, talking through economic impact, helping guide the future of Denton tourism or preparing for another 10 nights of rodeo and fair crowds, Carlton has kept showing up for the North Texas Fair & Rodeo.

And in many ways, the fair has grown because of it.

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Farm & Ranch

The Science of Salt Blocks

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By Savannah Magoteaux

Walk through almost any pasture in Texas, and chances are you’ll find one sitting near a water trough, under a shade tree or tucked beside a feed bunk. Sometimes it’s a plain white block. Other times it’s red, brown or even pink. Some weigh just a few pounds, while others tip the scales at 50 pounds or more. Regardless of their color or size, salt and mineral blocks have become such a familiar part of livestock management that many producers place them in the pasture without giving them much thought. Yet these simple blocks play an important role in animal nutrition, and understanding why livestock seek them out can help producers make better decisions for the health and productivity of their herds.

Salt is one of the few nutrients animals actively crave. Unlike protein or energy, which are largely obtained through forage and feed, sodium is often lacking in pasture plants. Livestock have evolved with an appetite specifically designed to seek out salt when their bodies need it. That instinct is one reason cattle, horses, sheep and goats will travel surprising distances to find a source of sodium if one is unavailable.

While salt blocks have been a ranch staple for generations, today’s mineral supplements have become far more sophisticated. Many products now combine salt with calcium, phosphorus and trace minerals that support everything from muscle contraction and reproduction to immune function and hoof health. Choosing the right product depends on the species being fed, the forage available and even the region where the animals live.

More Than Just Salt At its most basic level, salt is made of two essential minerals: sodium and chloride. Both are classified as macrominerals, meaning animals require them in relatively large amounts compared to trace minerals. Sodium helps regulate nerve impulses, muscle contractions and the movement of fluids throughout the body. Chloride works alongside sodium to maintain proper hydration while also serving as a critical component of stomach acid, allowing livestock to digest feed efficiently.

Although forages contain many nutrients, they are naturally low in sodium. Even lush spring grasses seldom provide enough to meet an animal’s daily requirement. Because of that, cattle, horses and many other grazing animals must receive supplemental salt throughout the year.

A salt deficiency does not usually appear overnight. Instead, producers may notice subtle changes that become more pronounced over time. Animals may consume less feed, resulting in slower weight gain or reduced milk production. Fertility can decline, growth rates may slow and overall performance often suffers. In more severe cases, livestock may begin chewing wood, licking soil, eating unusual objects or seeking out other unnatural sources of sodium. These behaviors, sometimes called pica, are among the body’s attempts to correct a nutritional imbalance.

Fortunately, providing adequate salt is one of the simplest nutritional needs to address. Salt blocks offer a convenient way for livestock to regulate their own intake. Rather than consuming large amounts at one time, animals typically lick the block periodically throughout the day, taking in only what their bodies require. Weather- resistant pressed blocks can remain in the pasture for extended periods, making them particularly useful for grazing operations where daily feeding is limited.

The familiar white salt block is composed almost entirely of sodium chloride and serves one primary purpose: supplying salt. For operations where the rest of the mineral program is already balanced through feed or loose mineral supplements, a plain white block may be all that is needed. In many cow-calf operations, however, producers choose trace mineral salt blocks instead.

Trace minerals are required in much smaller quantities than sodium or calcium, but their importance cannot be overstated. Copper contributes to immune function, reproduction and proper hair pigmentation. Zinc supports healthy skin, hoof quality and wound healing. Manganese plays a role in skeletal development and reproductive performance. Cobalt is necessary for rumen microbes to produce vitamin B12, while iodine supports proper thyroid function. Selenium, where deficient, works with vitamin E to protect muscle tissue and strengthen the immune system.

Because many soils naturally contain low levels of certain trace minerals, forage quality can vary considerably from one region to another. In portions of Texas and Oklahoma, selenium levels in soils are frequently too low to meet livestock requirements. Other areas may contain high concentrations of sulfur, iron or molybdenum, which interfere with the absorption of copper. These regional differences are one reason nutritionists often recommend mineral programs designed specifically for local conditions rather than relying on a one-size-fits-all approach.

It is also important to recognize that more is not always better. While deficiencies create problems, excessive mineral intake can be equally harmful. Sheep, for example, are far more sensitive to copper than cattle and should never have unrestricted access to cattle mineral products formulated with higher copper concentrations. Horses have different mineral requirements than ruminants, and goats often require supplementation programs designed specifically for their unique nutritional needs. Reading the label before placing a block in the pasture is every bit as important as selecting the right feed.

Another factor producers sometimes overlook is intake itself. Salt serves as a natural regulator because livestock consume only limited amounts each day. Manufacturers often incorporate minerals into salt products because the salt encourages animals to visit the block regularly without allowing them to overconsume the supplement. Even so, weather, forage quality, water availability and individual animal preferences all influence how much each animal actually receives. Dominant animals may visit the block more often, while timid animals may consume less than intended if too few blocks are available throughout the pasture.

Placement matters as well. Nutrition specialists often recommend locating blocks near watering areas or loafing sites where livestock naturally gather. In larger pastures, providing multiple blocks helps reduce competition while encouraging animals to utilize more of the available grazing acreage. Some producers intentionally position mineral feeders away from water sources to encourage more even grazing distribution across the pasture, a management practice that can reduce overgrazing in heavily traveled areas while making better use of available forage.

to the Situation Not every animal has the same nutritional requirements, and those needs can change dramatically throughout the year. A dry beef cow grazing dormant winter forage has different mineral requirements than a lactating cow nursing a calf. Growing replacement heifers, breeding bulls, horses in heavy work and young livestock all place different demands on their bodies. As forage quality rises and falls with the seasons, so does the amount of supplementation that may be necessary. During periods of drought or when livestock rely heavily on harvested hay, mineral supplementation often becomes even more important because stored forages frequently contain lower concentrations of certain nutrients than actively growing pasture.

One of the biggest changes in livestock nutrition over the past several decades has been the increasing use of loose mineral supplements. Because animals can consume loose minerals more easily than they can lick a pressed block, nutritionists generally find that intake is more consistent. Loose minerals also allow manufacturers to include higher concentrations of phosphorus and other ingredients that would be difficult to incorporate into a hard block. For producers managing breeding herds or seeking maximum production, loose minerals often provide the most complete nutritional program.

That does not mean salt blocks have become obsolete. In many situations, they remain an excellent choice. Operations with smaller herds, leased grazing ground or remote pastures often appreciate the durability of a pressed block. They withstand rain well, create little waste and require less frequent replacement than loose minerals exposed to the weather. Some producers even offer both products, allowing livestock constant access to a salt block while providing a balanced loose mineral supplement nearby.

Producers also have options when it comes to size. Smaller mineral bricks, often weighing between four and ten pounds, are convenient for horse stalls, small paddocks, trailers and temporary pens where only a few animals need access. They are easy to move and replace but require more frequent monitoring. Larger blocks weighing 25 to 50 pounds are better suited for pastures with multiple animals and can last considerably longer before needing replacement. Their size also makes them more resistant to being tipped over or carried away by curious livestock.

Weather can influence the effectiveness of any mineral program. While pressed blocks hold up well in rain, they should still be placed on well-drained ground whenever possible to reduce waste. Loose minerals should be protected with covered feeders to prevent moisture from causing the product to cake or harden. Regardless of the supplement being offered, keeping feeders clean and replacing contaminated product helps ensure livestock continue consuming the minerals as intended.

Water quality deserves consideration as well. Water naturally contains dissolved minerals, and in some parts of Texas, elevated sulfur levels can interfere with copper absorption or contribute to other nutritional imbalances. Likewise, forage grown on different soil types can vary widely in mineral content from one ranch to another. Because of these regional differences, many Extension specialists encourage producers to base their mineral program on forage analysis, water testing and recommendations from a veterinarian or livestock nutritionist rather than selecting a product based solely on price or marketing claims.

It is also worth remembering that mineral supplements cannot compensate for poor overall nutrition. Salt blocks and mineral mixes are designed to supplement a balanced feeding program, not replace quality forage, adequate energy or sufficient protein. When cattle are short on calories or protein, simply increasing mineral intake will not correct the underlying problem. Like every other aspect of livestock management, mineral nutrition works best when viewed as one piece of a larger management plan.

Despite the growing number of specialized products available today, the principle remains

remarkably simple. Livestock require minerals to support countless biological functions, and because many of those nutrients are inconsistent or lacking in forage, producers must provide them in another form. Whether that comes from a plain white salt block, a fortified trace mineral block or a carefully balanced loose mineral supplement depends on the operation and the animals being managed.

The next time you pass a weathered salt block sitting quietly in the pasture, it is worth remembering that it represents far more than a convenient place for cattle to gather. It is the result of decades of nutritional research, an understanding of animal physiology and the recognition that even the smallest nutrients can have an enormous impact on health, reproduction and performance. Like good fences and dependable water, a thoughtfully planned mineral program is one of those investments that often goes unnoticed—right up until it is missing.

Choosing the Right Block Walk down the livestock aisle of any farm store and you’ll likely find dozens of different mineral products.

While labels vary by manufacturer, these are some of the most common options producers encounter.

White Salt Blocks Made almost entirely of sodium chloride, these blocks provide a basic source of salt. They are commonly used when livestock already receive a balanced mineral supplement through feed or a separate loose mineral program.

Trace Mineral Salt Blocks (Red Blocks) The most common choice for beef cattle, these blocks contain salt along with added trace minerals such as zinc, copper, manganese, cobalt and iodine. They help supplement nutrients Mineral Blocks Some blocks are formulated for specific regional deficiencies or management goals and may include sulfur, magnesium or other nutrients. These products are often recommended based on forage tests, water quality or veterinary advice.

Loose Minerals Pressed blocks are durable, weather resistant and require little maintenance, making them that may be lacking in forage.

Mineral Blocks Designed for regions where selenium-deficient soils are common, these products provide carefully regulated levels of selenium. Because selenium can become toxic if overfed, producers should follow label directions and consult local recommendations before use.

Sulfur or Specialty

Pressed Blocks vs.

High-Selenium

ideal for many pasture situations.

Loose minerals generally provide more consistent intake and allow for more complete formulations, making them the preferred choice for many

breeding and production herds.

Smaller mineral bricks are convenient for stalls, pens and small groups of livestock where portability is important. Larger 25- and 50-pound blocks are

Large Blocks or Small Bricks?

designed for pasture use and require less frequent replacement.

The best choice often comes down to herd size, grazing conditions and how often the supplement can be checked and replenished.

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Farm & Ranch

Frog Fruit

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By Tony Dean, tonydean.tx1@gmail.com

Frog fruit is a native low- growing perennial forb that is adapted to most of the eastern US, but it is not particularly well known to grazers. However, it contributes more to our plant communities than we realize. It generally grows no more than a few inches tall, rooting at the nodes. It can form dense mats several feet in diameter, and can develop runners up to 3 feet long.

Leaves are thick, one to two inches long and 3/8” wide, and are toothed from the middle to the tip of the leaf. Tiny white flowers form a ring around a flower head, then the head elongates to a 1” cylinder or longer. frog fruit has a four-angled stem.

Frog fruit can grow in almost any area in Texas and on many soil types. While it can grow in dryer soils and likes good drainage, it needs additional moisture to survive the hottest months. It can be found almost anywhere in a pasture but is often located in depressions and near water sources.

“Frog fruit is used as forage by livestock and deer. I recall an instance when I was moving cattle from one pasture to the next on a Jack County ranch. As I opened the gate, I stood by a beautiful green plant of switchgrass which I expected to be immediately grazed down. The cattle walked right by the switchgrass and stuck their heads in a small patch of frog fruit a few feet away,” Dean exclaimed.

Frog fruit is rapidly gaining popularity as a ground cover for homes and gardens for the following reasons:

1. Frog fruit grows quickly, maybe too quickly. If it gets out of bounds, you can always trim it back.

2. Frog fruit is low maintenance. Once you get it established with adequate watering, it can survive with little maintenance.

3. Frog fruit has a long bloom period, from April to October.

4. It is a host plant for several butterfly species and for other insects.

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