Clemson Extension Upstate District

Agriculture’s Role in the American Revolution: A South Carolina Story

CHRISTOPHER LeMASTER, JR.
Area Livestock & Forage Agent
Cherokee, Spartanburg, & Union Counties

Like much of the country, I’ve been thinking a lot about America’s upcoming 250th birthday. Here in Cherokee County, it’s hard not to. We have two nationally significant Revolutionary War battlefields—Cowpens National Battlefield and Kings Mountain National Military Park—right here in our backyard. Add in the recently opened Carolina Rising Museum, which highlights the important role South Carolina’s backcountry played in the Revolution, and there are plenty of opportunities to learn more about this important chapter of our nation’s history. 

I’ll admit, I’ve forgotten quite a bit since high school U.S. History, but it’s been fun to dive back into one of the most fascinating periods of our nation’s past. Of course, as a farmer and Extension agent, I couldn’t help but become especially interested in the pivotal role agriculture played in America’s fight for independence. 

South Carolina Was an Agricultural Powerhouse 

By the time the Revolution began in 1775, South Carolina had become one of the wealthiest colonies in British North America. That prosperity was built on agriculture. 

Rice and indigo were the colony’s signature cash crops, while timber, naval stores, livestock, and deerskins also contributed to a thriving export economy centered around the Port of Charleston. According to historian Dr. Walter Edgar, this agricultural wealth made South Carolina one of the most valuable colonies in the British Empire (Edgar, South Carolina: A History). 

It’s worth remembering that much of this agricultural wealth was made possible through the knowledge, skill, and labor of enslaved Africans, particularly in the cultivation of rice. Their influence remains evident today in South Carolina’s culture, cuisine, and the historic rice impoundments that now provide valuable wildlife habitat along the coast. 

Why Agriculture Mattered During the Revolution 

The British didn’t simply want to defeat the Continental Army—they wanted to regain one of their richest colonies. 

Agriculture made South Carolina strategically valuable because it provided: 

  • Valuable exports like rice and indigo. 
  • Food for both British and Patriot armies. 
  • Horses, cattle, and other livestock needed to support military campaigns. 
  • Timber and naval stores used for construction and transportation. 

Simply put, controlling South Carolina meant controlling valuable agricultural resources—a strategy that was important to both the British and the Americans. 

Armies depended on local food supplies. Livestock was seized. Crops were destroyed. Mills, roads, and river crossings became important military objectives because they controlled the movement of food and supplies. 

A Different Way to Celebrate 250 Years 

As we prepare to celebrate America’s 250th birthday, it’s worth remembering that our nation’s story wasn’t written only by soldiers and statesmen. 

It was also written by farmers. 

South Carolina’s fields helped build one of Britain’s wealthiest colonies, supported communities during years of conflict, and supplied resources that sustained armies on both sides of the war. Agriculture has always been more than an economic engine—it has been part of our state’s identity from the very beginning. 

One final thought. As I’ve read more about the Revolution, a few things have really stood out to me. First, the cost of independence was immense and brutal in America’s first civil war. These Americans endured hard times, and they were even harder people. My other takeaway is that agriculture has always been a matter of national security. Throughout history, without a secure food supply, no cause can endure. 

Protecting Your Herd: Managing Harmful Algal Blooms (HABs) 

HEATHER NIX
Upstate Water Resource Agent
CHRISTOPHER LeMASTER
Area Livestock & Forage Agent

As we move into the warmer months, ensuring cattle have access to fresh, clean water is a primary management concern. Many producers rely on surface water sources; however, this practice introduces risks, most notably Harmful Algal Blooms (HABs), which can have rapid and fatal consequences for livestock. 

What are Harmful Algal Blooms (HABs)? 

 HABs include rapid overgrowths of cyanobacteria (formerly called blue-green algae) in water bodies. Unlike true algae, cyanobacteria can produce toxins that are harmful to humans, pets, and livestock. These blooms may appear as a “spilled paint” scum, pea soup, grass clippings, or thick mats on the water surface and can vary in color from blue to bright green to brownish-red. 

Microcystis; Photo by Emily Bores
Microcystis; Photo by Emily Bores
Effects on Cattle 

Cyanobacteria can produce over 1,000 types of poisonous compounds, known as cyanotoxins, which are released when the cells die and rupture. Cyanotoxins can attack the skin, liver, cells, or nervous system and can produce symptoms within minutes, days, or months following exposure. Health impacts depend on specific cyanotoxin(s), concentration, route of exposure (ingestion, contact, etc.), and length of exposure. Symptoms can vary widely, in livestock watch for skin rash or increased sensitivity to sun exposure, diarrhea, weakness, respiratory distress, muscle tremors, premature births, or fetal death.  

Prime Conditions for HAB Growth 

Cyanobacteria thrive when environmental conditions provide a “perfect storm” for growth: 

  • Stagnant Water: Still or low-flow water, such as farm ponds or backwater areas. 
  • Nutrient Rich: High levels of phosphorus and nitrogen, possibly from fertilizer runoff or direct manure input. 
  • Warm Temperatures: Prolonged sunlight and warm water temperatures (above 77ºF) during warm weather. 
How to Monitor for HABs 

In 2025, the South Carolina Department of Environmental Services (SCDES) issued its first Recreational Watch after identifying toxin-producing HAB species in Lake Hartwell on April 30th, with the latest Recreational Advisory issued for Lake Thurmond on November 25th. Because of this wide window, producers should regularly inspect ponds and other water sources, especially on the downwind pond edges where wind and waves concentrate the blooms. 

  • The Stick Test: If you can lift the algae out of the water with a stick, it is likely non-toxic filamentous algae. If it breaks apart and cannot be lifted or coats the stick like paint, it may be cyanobacteria. 
  • The Jar Test: Place a water sample in a clear jar and refrigerate it overnight. If the algae floats to the surface, it is a strong indicator of cyanobacteria. 
Action Steps: Response and Recovery 

If you suspect a bloom is present, take immediate action to protect your herd: 

  1. Remove Animals (and People): Immediately exclude livestock from the suspected water source using temporary fencing or by moving the herd to a different pasture. 
  1. Provide Alternative Water: Ensure animals have access to a clean, reliable supply, such as well water or a municipal source. Note: Be aware that even “clean” sources can become contaminated if equipment (troughs, hoses, or buckets) has been exposed to the bloom. Be sure water (in troughs) is regularly refreshed and thoroughly clean and flush any shared infrastructure. 
  1. Report to the Clemson HAB Response Team: Contact your local Livestock or Water Resource Agent immediately. Our statewide response team can assist with rapid sampling and positive identification to determine if the bloom is toxic. Having pictures of the pond (or water source) and a water sample (including potential HAB growth) may be helpful. 
References 
  • Livestock Water Quality. Clemson University Land-Grant Press. 

Photo Credit: Emily Bores, SCDES 

Riding on a Breeze: Watching the Weather for Armyworms

CHRISTOPHER LeMASTER, JR.
Area Livestock & Forage Agent
Cherokee, Spartanburg, & Union Counties

Yesterday evening while feeding, I noticed a strong, warm breeze blowing from the south. A few minutes later, I spotted a couple of moths and caught one to take a closer look. It turned out not to be a fall armyworm moth, but it did remind me that these warm, humid weather patterns are often favorable for the northward migration of fall armyworm moths from their overwintering areas along the Gulf Coast and farther south. As we move further into summer, now is a good time to begin scouting pastures and hayfields. Early detection remains our best defense against significant damage.  

That doesn’t necessarily mean armyworms are here today, but it does mean it’s time to start paying attention. Early scouting is still our best defense against significant damage in pastures and hayfields. 

PRIME CONDITIONS 

As these weather patterns continue, producers should be on the lookout for signs of armyworm activity and regularly inspect fields for feeding damage and larvae. Clemson Extension recommends scouting during the cooler parts of the day, such as early mornings and evenings. A sweep net is one of the most effective scouting tools, but simply getting down in the forage and looking for larvae can also be effective. 

In addition to finding larvae, watch for signs of feeding damage such as chewed leaf material, ragged leaves, or forage that appears to have a frosted appearance. Producers should also be suspicious of increased bird activity, especially geese or cattle egrets concentrated in a pasture, as they are often feeding on armyworm larvae. 

HANDY WEATHER RESOURCES 

Armyworm on a leaf

Since I was already thinking about weather, I should mention a resource I have been using quite a bit lately while trying to plan spray applications: agweather.com. The website was developed by Eric Snodgrass, a meteorologist with an agricultural background who has made a significant impact in the agricultural community through his weather analysis and outreach. We had the privilege of hearing him speak at Clemson a few years ago while he was with the University of Illinois, and I have found many of the tools on the website to be useful ever since. 

The site contains more information than I know what to do with, but I have found the local forecasts to be very accurate and especially appreciate the national radar maps. One feature I check frequently before spraying is the hourly forecast, particularly the wind speed and temperature inversion predictions. Those tools can help producers make safer application decisions and reduce the potential for pesticide drift. 

We are not endorsing or representing this website in any way, but it may be a useful resource for some of you as well. 

FOR MORE INFO 

For more detailed scouting and management recommendations, check out Clemson Extension’s blog on fall armyworm management. You can also join us next Friday at 12:00 p.m. for our Fall Armyworm and Bermudagrass Stem Maggot Webinar, where we’ll discuss identification, scouting strategies, treatment thresholds, and management options for the season ahead. 

York County 4-H Connects with New Families Through Summer Kick Off Event

On Friday, May 29, York County 4-H and the City of York welcomed families from across the community to York Place for the 2026 Summer Kick Off Event. What began as an idea to bring families together for an evening of affordable summer fun turned into an incredible community celebration, with 205 vehicles and more than 700 attendees joining us throughout the evening.

The event featured a wide variety of activities for all ages, including face painting by Mandy’s Professional Face Painting, Pep’s Party Animals petting zoo, giant inflatables and movie equipment provided by Morton’s Amusements, line dancing, a playground area, and a movie in the field to close out the night.

One of the highlights of the evening was the opportunity for families to connect with local organizations and resources. Community information booths were provided by:

  • York County 4-H
  • Yorkville Agricultural & Education Society
  • Keystone
  • York County Arts Council
  • York Soil & Water Conservation District

Attendees also enjoyed exploring emergency response and public safety vehicles, including displays from:

  • York County SWAT Team
  • City of York Fire Department
  • City of York Police Department.

A special thank you goes to Lifeway Church and The Church of the Good Shepherd for providing a free hotdog dinner for attendees. Their generosity helped ensure that families could enjoy a meal together while participating in the evening’s activities.

One of the most meaningful outcomes of the Summer Kick Off Event was the opportunity for Clemson Extension’s York County 4-H program to connect with new families throughout the community. The event provided a unique platform to introduce families to the wide variety of youth development opportunities available through 4-H, including leadership, agriculture, STEM, healthy living, and civic engagement programs. Many attendees were unfamiliar with the scope of 4-H beyond traditional livestock projects, and the event allowed staff and volunteers to share how 4-H serves youth from all backgrounds and interests. By building relationships, answering questions, and engaging families in a fun and welcoming environment, the Summer Kick Off Event helped expand awareness of 4-H’s impact and created new opportunities to reach and inspire the next generation of York County youth.

This event would not have been possible without the support of our community partners, volunteers, vendors, sponsors, and local organizations who came together to create a welcoming and memorable experience for families across York County.

The overwhelming turnout demonstrated the value of community events that bring people together, connect families with local resources, and create opportunities for neighbors to build relationships. We are grateful to everyone who attended and helped make the 2026 Summer Kick Off Event such a tremendous success.

We look forward to continuing this tradition and welcoming even more families to York Place in the years to come.

Interested in learning more about York County 4-H? We invite families, volunteers, and community members to connect with us and discover the many opportunities available through Clemson Extension’s 4-H Youth Development Program.

Kristin Kunde

York County 4-H Agent 
Cooperative Extension
Clemson University

120 N. Congress St.

York, SC 29745

w 803-639-9102

Cooking, Leadership, and STEM: A Great First Week of Summer with York County 4-H

York County 4-H had an exciting start to summer programming this week, offering opportunities for youth of all ages to learn new skills, build friendships, and explore their interests through hands-on activities.

From Tuesday through Thursday, youth ages 9–13 participated in Cooking Camp at Winthrop University. Campers spent each day preparing breakfast and lunch while learning valuable life skills such as kitchen and food safety, proper knife skills, and the importance of local agriculture through farm-to-table activities. Youth gained confidence in the kitchen while working together to create delicious meals from start to finish.

A special thank you goes to our four teen camp counselors who helped make Cooking Camp an engaging and memorable experience for all participants. Their leadership, encouragement, and willingness to assist campers played a key role in the camp’s success.

While Cooking Camp was underway, youth ages 7–11 enjoyed CloverBUG Camp on Wednesday and Thursday. Campers participated in hands-on activities, games, and educational experiences designed to spark curiosity and creativity while building friendships and having fun.

Thursday evening marked the first meeting of our summer Teen Lead Lines Club. Teens had the opportunity to hear from Lt. Ramsey of the York County Sheriff’s Department, who shared valuable insights on servant leadership and the positive impact young people can have within their communities. Participants left inspired to develop their leadership skills and find ways to serve others.

The week concluded on Friday with our first Cloverbud Day for youth ages 5–8. The STEM-themed event encouraged our youngest members to explore science, technology, engineering, and math through creative, hands-on activities. Cloverbuds built and decorated birdhouses, experimented with LEGO building challenges, and worked together to complete a Forest Fort Challenge.

We are proud of all the youth who participated this week and grateful to the volunteers, teen leaders, partners, and families who helped make these programs possible. We look forward to many more exciting learning adventures throughout the summer with York County 4-H!

Stay Vigilant: New World Screwworm Awareness for Livestock Producers 

SEAN EASTMAN DVM, Clemson Livestock Poultry Health 

CHRISTOPHER LeMASTER JR, Clemson Extension Livestock & Forages 

USDA has now confirmed a case of New World Screwworm in a calf near La Pryor, Texas, roughly 50 miles from the border. Recent warnings have renewed attention on the New World screwworm, a pest with serious implications for livestock, wildlife, and even pets. While not currently established in our region, its proximity—and history in the southeastern U.S.—make awareness especially important. 

For the beef industry alone, the potential economic impact is substantial. Estimates suggest losses could reach into the billions of dollars if the New World screwworm were to re-establish in the U.S. This threat also extends beyond cattle, affecting other livestock, wildlife, and even pets—broadening the economic and ecological impact. 

What makes the screwworm particularly concerning is its life cycle. Adult flies are drawn to open wounds and lay eggs, and the larvae then feed on living tissue. This means even minor injuries—dehorning, castration, puncture wounds, or something as small as a tick bite—can create an entry point. Routine inspection of any wound is critical. 

Right now, the priority is recognition and reporting. We are in a surveillance phase, and early detection is key to control. If you suspect a case, report it. Doing so does not put an “x” on your back—it’s how we protect the industry as a whole. 

The good news is we’ve dealt with this before. Screwworm was once endemic in the U.S. but was eradicated in the late 1950s through sterile fly production, which prevented reproduction and proved highly effective. Today, we have even more tools available, including expanded sterile fly capacity and additional treatment options with more approved labels. 

For now, stay aware and stay vigilant. Regularly check animals, monitor any wounds closely, and report anything suspicious. 

  • If you suspect a case in a person: Report immediately to South Carolina Department of Public Health via the regional epidemiology office or the statewide emergency number (1-888-847-0902).
  • If case is in deer and wildlife: S.C. Department of Natural Resources, Wildlife and Freshwater Fisheries Division, (803) 734-3886
  • If suspected in domestic animals: Clemson University Livestock-Poultry Health, (803) 788-2260

For more information, visit: 

SWEET VERNALGRASS TAKING OVER FESCUE FIELDS? LOOK BEYOND THE WEED 

Christopher LeMaster
Livestock & Forage Agent
Cherokee, Spartanburg, Union Counties
Sweet vernalgrass a not so sweet weed

By 9:30 this morning, I had already received three phone calls about sweet vernalgrass taking over fescue pastures. 

On my drive to work, there is a hay field I pass regularly that tells the whole story. The field is a low-input field that is seldom fertilized, and over the last several years I have watched it slowly transition from mostly tall fescue to mostly sweet vernalgrass. 

That change did not happen overnight — and unfortunately, it will not be corrected overnight either. 

What Is Sweet Vernalgrass? 

Sweet vernalgrass was originally introduced as an ornamental grass because of its sweet, vanilla-like smell. Today, most livestock producers consider it a weed because it is simply unproductive. While livestock will graze it, it does not produce the forage volume or quality we expect from a productive fescue stand. 

Sweet vernalgrass also contains coumarin compounds, which are responsible for its characteristic sweet smell. Under certain conditions, particularly in improperly cured or moldy hay, those compounds can be converted by fungi into dicoumarol, a compound that can interfere with normal blood clotting. While this is generally not considered a major concern under normal grazing conditions, poorly cured hay containing high amounts of sweet vernalgrass may present a greater risk. 

Sweet Vernalgrass Is Often a Symptom 

Like many weeds, sweet vernalgrass is often an indicator species. 

When it begins to invade a pasture, it is usually telling us something about the condition of the field: 

  • Soil pH may be too low 
  • Fertility levels may be lacking 
  • Most importantly, the fescue is not healthy enough to compete 

A thick, vigorous stand of tall fescue is the best defense against sweet vernalgrass. Healthy fescue simply does not leave much room for it to spread. 

Why There Is No Easy Fix 

At this point in the season, most sweet vernalgrass has already headed out. Because of that, there is really no benefit to trying to treat it now. 

Additionally, there are currently no labeled herbicides that will selectively remove sweet vernalgrass from a fescue stand without damaging the desirable forage. As is often the case, taking a grass out of a grass crop is difficult. 

That means our focus now needs to shift toward strengthening the fescue stand. 

Focus on Strengthening the Fescue 

As we move into the summer months, we want to place that fescue in the best possible position to survive heat and dry weather stress. Avoid overgrazing or cutting hay too short, as that only weakens the stand further and creates more opportunity for sweet vernalgrass to expand. 

Hopefully, we will receive timely rainfall this fall so producers can take advantage of fall fertility applications and promote strong fall, winter, and spring growth. Improving soil fertility and encouraging vigorous fescue growth will gradually help thicken the stand and improve competition against sweet vernalgrass. 

When Renovation May Be Necessary 

In fields with severe patches of sweet vernalgrass, some producers may consider spot-spraying affected areas with glyphosate during late winter or early spring while the sweet vernalgrass is actively growing and before seedheads emerge. 

Because glyphosate is non-selective, desirable forage in treated areas will also be affected, but in heavily infested patches there may be little productive fescue remaining to preserve. Following treatment, producers can focus on correcting soil fertility and reseeding those areas with desirable forage species during the fall. 

In some situations, producers may also need to evaluate whether partial renovation is enough or if complete renovation of the hayfield would be more effective long-term. 

Are other grassy weeds such as foxtail also becoming a problem? 

Oftentimes, the same low-input fields where sweet vernalgrass begins to gain an advantage on fescue are also the fields where foxtail becomes problematic later in the summer. Like sweet vernalgrass, foxtail presents another challenge because it is a grassy weed growing within a grass crop, leaving producers with limited herbicide options. 

When multiple grassy weeds are becoming established and desirable forage stands continue to thin, a complete renovation may sometimes be the most practical and economical long-term solution. 

Every Field Is Different 

There is no one-size-fits-all recommendation for sweet vernalgrass management. 

Renovation can be expensive, but continuing to manage a low-producing hayfield also carries a significant cost over time in reduced forage production and hay quality. 

Producers who are dealing with sweet vernalgrass issues are encouraged to contact their local Extension office so we can evaluate the situation on a case-by-case basis and discuss the most practical and economical options for their operation. 

Unfortunately, there is no silver bullet for sweet vernalgrass control. Long-term management comes back to the basics: proper fertility and maintaining a dense, healthy stand of fescue. 

Bridging the Forage Gap: Can Summer Annuals Make Up for a Dry Spring? 

CHRISTOPHER LeMASTER JR, Clemson Extension Livestock & Forages Agent 
Cows grazing in a pasture.

After a dry spring, many producers are asking the same question: how do we make up lost forage? 

For a lot of operations this year, the answer is summer annuals. 

Why summer annuals? 

Summer annuals are fast-growing, high-quality forages that can help fill gaps when perennial systems fall short. In the Southeast, they’re typically planted from April through June and can be used for grazing, baleage, or hay. 

Under good conditions, they can produce 5,000 to 10,000 pounds per acre with 15%+ crude protein—a strong option coming out of a poor spring. They are an excellent alternative to the increased risk of fescue toxicity across the summer months. Of course, that still depends on rainfall and management. 

Even with risk, farmers are planting. 

This isn’t a low-risk move. 

Ongoing drought, elevated fuel and fertilizer prices make this a difficult decision. After looking at several extension enterprise budgets, some summer annuals could easily land in the $200/acre ballpark. However, doing nothing has a cost too! 

Start with your goal. 

Before planting, think about what you need most: 

  • Dry hay – Possible, but challenging due to thick stems. Higher seeding rates and a mower conditioner can help. 
  • Baleage – Strong option for hard-to-dry crops. Ensilation can also decrease nitrates 
  • Grazing – A great way to stretch forage, improve cattle performance, and give Fescue pastures a break heading into fall and punch through the summer slump. 

Don’t overlook mixtures. 

Mixtures are getting more attention—and for good reason. 

Adding legumes can: 

  • Reduce nitrogen needs 
  • Maintain yield and quality 
  • Improve soil health and resilience 

They can also help buffer against drought and extend the grazing season. Just keep in mind that herbicide options may be more limited. 

A quick word on risk 

Not all summer annuals handle stress the same. 

  • Pearl millet offers good drought tolerance and avoids prussic acid risk (though nitrates are still possible). 
  • Sorghum and sorghum-sudan can be high-yielding but require careful management due to prussic acid and nitrate concerns. 
  • Crabgrass performs well but needs consistent moisture 

Final thoughts 

Summer annuals aren’t a silver bullet—but they can help bridge the forage gap after a dry spring. 

This isn’t an exhaustive list—just a starting point. 

If you’re trying to decide what fits your operation, reach out or check out our other forage resources. We’re happy to help you think through your options. 

Forage Production in a D3 Drought: When “Normal” Decisions Stop Making Sense

MATT FISCHER, Clemson Extension Livestock & Forage Economist 
CHRISTOPHER LeMASTER JR, Clemson Extension Livestock & Forages Agent 

Drought changes the math—fast. 

In a D3 (extreme) drought, especially when paired with a 50% spike in fertilizer and fuel costs, the old hay production playbook doesn’t just struggle—it can quietly put you out of business. This isn’t just about surviving one tough season. It’s about protecting your land, your forage stands, and your financial position for the next year. 

Low Yields Can Cause Your Cost per Bale to Explode 
Tractor in a field

In a normal year, your equipment, labor, and overhead are spread across a solid number of bales. That’s what keeps your cost per bale manageable. 

But drought flips that equation. 

If you’re only producing 25% of your typical yield, your fixed cost per bale doesn’t just go up—it can quadruple

Your reality doesn’t change: 

  • Your tractor payment is still due 
  • Your labor still costs what it costs 
  • Your time hasn’t gotten any cheaper 

Trying to sell hay at “normal” prices in this environment isn’t competitive—it’s unsustainable. 

The Soil “Loan” You May Not Realize You’re Taking 

Every bale you remove is taking nutrients with it—nitrogen, phosphorus, and potassium. In a good year, those nutrients are replaced. In a drought year with high input costs, that replacement often gets delayed… or skipped. 

If your hay price doesn’t cover nutrient removal, replacement fertilizer, and application costs, then you’re not just selling hay—you’re mining your soil. 

Think of it as a loan from your land: you gain short-term cash flow, but you build long-term fertility debt. And like any loan, it eventually comes due. 

Mowing vs. Harvest 

One of the toughest calls in a drought year is whether to harvest at all. 

There are times when mowing and leaving the forage as residue creates more value than baling it. It helps conserve soil moisture, protects stand health, and reduces long-term damage. 

Over-harvesting drought-stressed forage—especially fescue—can thin or even kill your stand. And once that happens, you’re looking at re-establishment costs that far outweigh the value of a few bales. 

A Reality Check on Spring Fescue Yield 

At this point in the season, spring yield potential for fescue is largely set. Even if we catch some rain, don’t expect meaningful increases in hay yield for this cutting. 

In a grazing situation, however, there may be some opportunity for regrowth. If we’re able to clip mature seed heads and receive timely rainfall, we may see some regrowth—provided temperatures remain mild. 

Choosing not to harvest now and waiting on future growth is, in many ways, a bet on fall production. And like any bet, it carries risk. 

I don’t recommend making that bet unless you have a backup plan—whether that’s identifying an alternate hay source or having stored hay that will hold its quality in the barn. As with anything, it’s smart to hedge your bet. 

Another way to hedge that risk is by looking at summer annuals to help replace some of the yield loss we’ve experienced this spring. We’ll take a closer look at summer annual options in our next blog post. 

The Reality of a Tight Hay Market 

This isn’t just happening on your farm—it’s regional. 

In a widespread drought: 

  • Yields are down everywhere 
  • Supply is tight 
  • Demand stays strong 

Buying hay becomes difficult. And when you do find it, trucking costs can rival the value of the hay itself. 

That’s why local hay carries a premium—lower freight, faster access, and more reliability. 

Price for Survival, Not Tradition 

Pricing hay based on “what it’s always been” is a losing strategy in a year like this. 

Instead: 

  1. Calculate your true cost per bale 
  1. Adjust for reduced yield 
  1. Build in a margin that protects your operation 

Because if your price doesn’t cover your costs, maintain soil fertility, and protect your forage stands, you’re not running a business—you’re liquidating one. 

The Bigger Picture: Staying in Business Next Year 

Right now, the goal isn’t maximizing production. 

It’s: 

  • Preserving your soil 
  • Protecting your stands 
  • Maintaining financial stability 

That may mean making uncomfortable decisions: 

  • Charging more than you ever have 
  • Cutting less than you want 
  • Walking away from marginal harvests 

Bottom line: Sit down with a pencil. Run your numbers honestly. Price your hay based on reality—not tradition. 

That’s how you make it to next season

The Nitrate Spike: Why “Drought-Ending” Rain is a Critical Window

Hay bale in a field

Christopher LeMaster, Jr.
Livestock & Forage Agent
Cherokee, Spartanburg, & Union Counties

We don’t usually associate tall fescue with nitrate toxicity in the spring. However, the current D3 drought conditions have changed the equation. This is not only a “summer problem,” but cool-season grasses—such as tall fescue or winter annuals—can pose a risk under these specific conditions.

If you applied high levels of nitrogen this spring to catch a flush of growth that never came, the risk in your fescue fields is real. Without rain, the plant couldn’t convert that nitrogen into growth. It simply accumulated in the lower portion of the plant. Now that we are finally seeing some rain, that “stuck” nitrogen is being pulled into the plant at a rapid rate.

The Spike

It is a common misconception that the danger passes as soon as the grass turns green again. In reality, research shows that nitrate levels typically spike 2 to 3 days after a drought-ending rain. This is the most dangerous window for your livestock.

  • The One-Week Rule: While the spike is most acute in the first 48 to 72 hours, we recommend waiting at least one week before grazing or harvesting. This allows the plant time to resume normal metabolism and begin “growing out” of that initial nitrate flush.
  • Hay is “Locked In”: Nitrates do not dissipate in dry hay. Once your mower hits the field, you are locked in at that nitrate level forever.
  • Silage/Fermentation: If you are putting up high-moisture forage or baleage, the fermentation process can reduce nitrate levels by 40% to 60%, but this should still be verified with a test.

Don’t Guess—Test

If you have fields with a high nitrogen history that are currently recovering from drought, I strongly recommend sampling the standing forage before you cut.

  • Get a Representative Sample: Take “grab samples” from multiple areas of the field, specifically focusing on the lower portions of the plant where nitrates concentrate.
  • Utilize the Lab: Bring your samples to your local Extension Office or send them directly to the Agricultural Service Laboratory. They can provide a precise analysis of nitrate-nitrogen levels.
  • Check the Backlog: We may also consider testing outside of that initial one-week window. Once the plant has had time to work through the backlog of accumulated nitrogen, a follow-up sample can confirm if the forage has returned to an acceptable or safe range for harvest.

Next Steps

If your test results come back with an elevated nitrate level, we can work on a plan to safely manage that forage. Whether that means diluting the feed with other forages, adjusting your grazing strategy, or simply waiting a few more days for the plant to balance out, there are ways to keep your herd safe.

Have questions about how to pull a proper sample or interpret your lab results?
Reach out to your local livestock and forage agent today.