Farm & Ranch
[AgriLife Today] Texas crop and weather report for March 23, 2016
By: Adam Russell
Farmers seek advice as ryegrass makes way for Bermuda grass
OVERTON – Call volumes increased for Texas A&M AgriLife Extension Service forage specialist Dr. Vanessa Corriher-Olson in Overton, as warm weather has farmers and ranchers looking for proactive ways to control weeds on ranges and pastureland.
At this point and with recent rainfall, annual ryegrass is active and producers want to manage it in Bermuda fields to allow the grass to take off, she said. They’re asking for recommendations to slow ryegrass growth – or are deciding to increase grazing pressure or harvest it.
Farmers continue to inquire about renovating, or lightly discing, land to allow moisture to get deeper. However, Corriher-Olson said there is limited-to-no comparative research data to show a Bermuda grass production advantage to discing. She said renovation practices should be done during grass dormancy in the winter, with care taken to conserve soil moisture, especially in a drought.
Renovation success is contingent on post-renovation rains.
“Keep in mind that anytime we disturb the soil, we are potentially promoting the germination of weed seeds so be prepared for weed control,” she said.
Corriher-Olson said there is concern about frost and freezing temperatures that might set back any actively growing Bermuda grass. There were reports of frost conditions March 21 but no subsequent reports regarding damages.
“It was hit or miss and I think it was a light frost, in unprotected areas,” she said. “Frost can set back Bermuda grass, but we would have to have a pretty substantial freeze before there was damage.”
AgriLife Extension district reporters compiled the following summaries:
CENTRAL: Corn planting halted due to wet field conditions, and forecasted rain could further delay planting. The region had some frost, but pastures continued to improve. Cattle remained in good condition, and green grasses emerged for grazing. Tank and pond levels remained full. Fruit and ornamental trees were in full bloom. All counties reported soil moisture and overall range and pasture conditions as good. Overall livestock conditions were rated 95 percent good while 85 percent of overall crop conditions were rated fair.
ROLLING PLAINS: Conditions were at both ends of the spectrum. The region experienced freezing temperatures to temperatures up to 80 degrees. The temperature swing wasn’t good for fruit trees and other plants susceptible to colder weather. Although this put a damper on lawn and garden work, producers have been busy preparing fields for this year’s crops. With cotton prices at a depressing low, some farmers were looking for alternatives but haven’t had much luck. Some producers moved stocker cattle to cultivated ground for grazing while those planning for cotton prepared the ground for spring planting. Livestock were in good condition with plenty of grazing as winter wheat and pastures continued to flourish. With the abundant amount of grazing available, ranchers fed supplement on a small scale and held on to hay supplies for the future. Wheat continued to grow and looked like a decent crop this year.
COASTAL BEND: Temperate days and cooler nights were the norm. A strong rain and wind-producing front passed with some small hail reported. Soil moisture conditions were good. Most corn and grain sorghum emerged and was growing. A small amount of sorghum needed replanting due to standing water. Some cotton has been planted, and some will also need to be replanted due to rainfall. Wheat continued to head. Rainfall perked up wheat but likely too late to improve yield. Rust pressure was observed in some wheat. Some producers applied fertilizer to hay fields. Pastures were green and growing with plentiful forage for livestock consumption. Cattle were in good shape, but mosquitos and flies were prevalent.
EAST: Wet conditions continued around the region. Rains and flooding destroyed corn planted in river bottom cropland in Anderson County. Several thousand acres of river bottom pasture was under water from both the Trinity and the Neches rivers. Shelby County had mandatory evacuations of residents living in low-lying areas due to flooding. Rain amounts in some areas exceeded 15 inches over a two-day period. Lake and pond levels were full to overflowing. Rain and cold weather hurt producers who planted early. Producers had trouble accessing pastures and crops. Pasture and range conditions were poor in the southeastern counties while other counties in the region rated them fair to good. Some farmers prepared spring gardens. Subsoil and topsoil conditions ranged from adequate to surplus. Upland vegetable crops were in good condition. Watermelons had runners and appeared to be three to four weeks ahead of schedule. Everything was budding out and blooming. Clover and ryegrass growth made good progress with adequate moisture and warmer conditions. Producers and homeowners were preparing for spring weed control. Producers were feeding less hay and supplementation. Livestock were in fair to good condition. Spring calving continued along with bull turn-out. Cow and calf sales were low at the sale barn. Fly populations were increasing in Henderson County, and Wood County reported serious problems with feral hogs.
SOUTH PLAINS: Borden County experienced windy conditions. In Cochran County, subsoil and topsoil continued to dry out due to lack of moisture and high winds. Producers continued to prepare for spring planting with chemical applications and listing. Crosby County received a light freeze over the weekend with a low of 31 degrees. Floyd County producers could use some more moisture. Producer were getting fields ready for planting. No rainfall fell in Garza County, and temperatures were near or below freezing with highs near 60 degrees. Rainfall was needed to improve topsoil moisture across the county for spring planting and green-up of warm-season grasses. Producers continued to prepare land for cotton planting in the next couple of months. Range and pastures were mostly fair to good with some green up of warm-season grasses in low-lying areas. As temperatures begin to rise, moisture will be needed for plants to grow. Livestock was in mostly good condition, and light supplemental feeding occurred. Conditions in Hockley County were dry and windy. Spring field work continued. Rust and a few aphids were found in wheat. Lubbock County experienced freezing weather March 19. The coldest minimum temperature was recorded at Abernathy at 23.5 degrees with a sub-freezing duration of six hours. Field preparation continued. Evidence of stripe rust was observed in two wheat fields. Yoakum County received no precipitation. Small grains under irrigation looked good. Oats in the area started to germinate.
PANHANDLE: The region was dry and windy with above-average temperatures most of the week, though a good general rain was still needed throughout the region. Collingsworth County reported dry, windy conditions, which dried out the soil profile significantly throughout the week. A burn ban was enacted to reduce the chance of wildfires due to the dry, windy conditions and fuel throughout pastures. Farmers prepared fields for planting by listing up rows, and putting down fertilizers, pre-plant herbicides and water. Deaf Smith County producers continued field work preparations for spring plantings. The winter wheat crop was actively growing as many producers ran water. Stocker cattle remained on graze-out wheat fields and were doing well. Decisions about what crops would be planted this season were still undetermined in some areas. Ochiltree County pre-plant activity for summer crops was reported. Wheat fields received weed control applications and were fertilized. Wheat will need rain soon but looked good. Producers scouted for insects in the wheat. Stocker cattle were moved off wheat fields to be harvested for grain. Randall County conditions were windy and dry. Rain was desperately needed as planting nears. Corn was expected to be planted within a week to 10 days. Meanwhile, field work continued in preparation for the upcoming planting season.
NORTH: Topsoil moisture varied from adequate to surplus. Temperatures reached beyond 80 degrees during the first part of the week, and more seasonal temperatures in the 60s and 70s returned during the latter half of the week. Rain totals were from a half inch to 1.75 inches. Warm temperatures and winds early in the week dried out topsoil so farmers could plant corn. Wheat and winter annual pasture grasses started to grow following rains from the previous week and warmer temperatures. Cattle pastures started to green up as well, which cut back on hay consumption. Livestock and spring-born calves were doing well. Wild hogs were still causing problems.
FAR WEST: Wheat in Glasscock County quickly progressed into the boot stage. Small portions planted early started to head out. Producers continued to work fields and most have started pre-watering cotton ground. Corn was planted and sorghum was expected to be underway shortly. Spring-like weather continued in Culberson County. A cold front blew in over the weekend but brought no precipitation. Fields in Pecos County have been planted with peppers and were being prepped for cotton. Range cattle continued to do well on open ranges. Presidio County was hot, dry and windy with no precipitation and winds gusting up to 50 miles per hour. Pastures were trying to green up, but non-grasses were the only green vegetation available. There were cattle dying due to the consumption of mustard weed. Winkler and Loving counties were drying out but received enough moisture throughout the winter to grow a good crop of spring weeds. Mesquite trees have not bloomed. Rangeland and pasture conditions in Reagan County started to green up from the warmer weather and rain. Lambing and kidding continued in Upton County. Supplemental feeding of wildlife and livestock continued. Some welcomed rains were received. Winter wheat was in fair condition. Pasture and range conditions across the district were poor. Topsoil and subsoil moisture were short.
WEST CENTRAL: Temperatures were much cooler at the end of the week. Some areas experienced frost and freezing conditions. Frost and freeze damage on warm season grasses and forages that had broken dormancy was noted. It was too early to tell if there was damage to wheat crops. Stock tanks and ponds looked good due to good runoff from the previous week’s rainfall. Field activities increased. Row crop producers were spraying winter weeds and applying fertilizers. Field preparations for spring planting were underway. Producers geared up to plant sorghum and summer forage crops. Some corn was planted late in the week. Wheat remained in good condition and was helped by recent moisture. Many producers grazed out their wheat pastures and expected to continue doing so as long as forage was available. Range and pasture conditions continued to improve and green up due to recent rains. Planned control burns were conducted. Livestock remained in fair to good condition. Yearling cattle were doing very well. Cattle prices held steady.
SOUTHEAST: In Walker County, the pastures were growing well due to warm weather and moisture. Clover and other legumes were in active stages of growth and production. In Brazos County, warm temperatures allowed saturated fields to dry. Corn was emerging well. Hardin County began to dry out, but everything remained wet after weeks of flooding. Neighbors to the east along the Sabine River experienced flood conditions. Temperatures in Montgomery County were all over the board, but good growth was seen on winter annuals. Warm-season grasses showed some growth. In Chambers County, about 5 percent of the rice crop was planted. Cool weather did not help planted rice, and a considerable amount could be planted soon if rain stays away and high winds continue. Fort Bend County avoided forecasted rain and producers expected to plant soon if fields continued to dry. Livestock were in good condition. Soil-moisture levels throughout the region varied widely, but most were adequate to surplus, with surplus being most common. Galveston, Fort Bend and Walker counties reported 100 percent adequate. San Jacinto County reported 100 percent surplus. Rangeland and pasture ratings varied widely but most were rated fair to poor. San Jacinto reported 100 percent good rangeland and pastures.
SOUTHWEST: Rain provided much-needed moisture to topsoil levels and increased subsoil moisture levels as well. The cold weather damaged some peaches and small grains, and the light freeze could thin blooms. Wet weather had crops growing well. Producers in some counties continued to wait for fields to dry before finishing corn and milo plantings. Livestock were doing well and had plenty of forage.
SOUTH: Conditions were good overall. More rainfall was received, which improved soil moisture and range and pasture conditions. Temperatures were mild in the northern portions of the region, and some rainfall occurred in Frio County. Corn crops in Frio County were in the two-to-four-leaf stages and in good condition. Potato crops were also in good condition and about to flower. Wheat crops continued to develop during the week and were in good condition. Range and pasture conditions throughout the Frio County area continued to recover and were in good condition. McMullen County received scattered rainfall, which improved soil moisture and pasture conditions. Rainfall amounts of 1-3 inches, coupled with warmer temperatures, helped green up pastures. Summer perennial grasses came out of dormancy. Winter annual grasses made good growth progress. Livestock grazing conditions improved and provided ample forage. Supplemental feed declined, and body condition scores on cattle improved with most herds in fair condition. Soil moisture conditions were 90-100 percent adequate in the Frio County area and 75 percent to 80 percent adequate in the McMullen County area. Pastures were doing better throughout the Brooks County area with the help of rainfall. Ranchers were optimistic about conditions, which produced better sale prices. In the Jim Wells County area, heavy thunderstorms occurred late in the week and provided additional moisture to most of the area. Rainfall reports varied from 1 inch to 2 inches, which benefitted all agricultural producers. Storms produced straight-line winds with 50-60 mile per hour gusts, but no crop damage was reported. Wheat crop conditions in Jim Wells County improved from the previous rainfall event, and most wheat fields were headed out. Forage conditions improved and were expected to increase in quality. Five inches of rain and cloudy conditions delayed further planting in Kleberg and Kenedy counties as fields remained saturated. Soil moisture conditions were 100 percent adequate in Brooks and Jim Wells counties and 100 percent surplus in the Kleberg and Kenedy counties. Conditions were favorable for forage production in Dimmit County. Maverick County received no rainfall, and farmers began planting next season’s crops. Coastal Bermuda grass should be ready for baling soon. In Webb County, three days of 100-degree temperatures were reported following 4 inches of rain and cloudy days. Range and pasture conditions were excellent. A storm made its way through Zapata County, and soil conditions were wet but not saturated. Temperatures were hot throughout the day and cold during late night hours. In Zavala County, warm days helped dry fields enough for producers to continue corn, sorghum and cotton planting. Fields of wheat and oats responded well to recent rains across the county. Livestock producers reported native range and pastures responded very well to rains, which reduced supplemental feed for livestock. Spinach harvesting of both fresh-market and processing varieties resumed in Zavala County, and the cabbage harvest was expected to resume soon. Soil moisture conditions were 70-80 percent adequate in Dimmit County, 70 percent short in Maverick County, 70 percent adequate in Webb County, 60 percent adequate in Zapata County and 100 percent adequate in Zavala County.
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Farm & Ranch
Grazing North Texas: Who’s Your Neighbor?
By Tony Dean, tonydean.tx1@gmail.com
Who qualifies as your neighbor? Webster says it is someone who lives nearby, but it isn’t always that simple. Is my neighbor the person next door, or someone in the next county? It could be both.
Our neighbors are an important part of life on the ranch and the grazing lands we share. Many of us find comfort in knowing another human being is somewhere in our neck of the woods, and that someone nearby cares what happens to us.
Being a good neighbor is part of being a productive and responsible rancher, so let’s look at some of the qualities that make a good one.
Protect your neighbor
Watch out for him.
The cattle business is dangerous. Almost everything we work with is bigger and faster than we are. A mad cow can turn an otherwise wonderful day into a disaster. Sooner or later, all of us will need some help.
The average age of today’s rancher keeps climbing. Be aware of your neighbors’ ages, limitations or disabilities, and keep an eye out for anything outside their normal routine.
More women own and operate ranches today, too. Some may suddenly find themselves responsible for parts of the operation that a spouse or family member used to handle. As neighbors, we can be a valuable backup system, helping one another learn, adjust and keep the operation moving.
And then there is wildfire. It can be on us in minutes. You may need to help move a family down the road to safety or move livestock out of harm’s way. Have a plan in mind before the emergency happens.
Be a friend
Some of us who live in the country drive to town for work or make regular trips for other reasons. Others are stay-at-home ranchers, and life can get a little lonely. A friendly smile, a phone call or an invitation to lunch can mean more than we realize.
Things aren’t always wine and roses at the ranch. Few occupations ask people to juggle such a mix of complex markets, weather, natural resource management, livestock management and countless other issues.
Spirits can get low. If we are listening, we can hear and feel the stress in someone’s life. On those days, you have a chance to be a special kind of friend.
Help your neighbor
Have you ever tried to load a trailer by yourself and needed someone to stand in the gate for a couple of minutes? All of us will need help at some point, and our neighbors should be among the people we can call.
Do your best to be there when needed, and your neighbors will likely be there when it is your turn to ask. Sometimes it will be a small job. Other times, it will be a big one. It doesn’t matter. We help our neighbors.
It’s also smart to make sure someone nearby knows your ranching program and understands the land you use. At some point, one of you may need to take care of business for the other for several days.
Be cooperative
There is no end to the situations that can involve more than one family. Fencing, road maintenance and livestock getting where they don’t belong are common ones.
If you don’t handle these things with a friendly, cooperative attitude, they can create problems between neighbors that last for years.
Good fences are something to be proud of. Nothing is gained by years of bickering. Reaching an agreement may be hard at times, but neighbors should be able to work things out. Clear your head, use common sense and come up with an answer everyone can live with.
If your cattle get mixed up with your neighbor’s, make it a priority to separate them as soon as possible. It is rude to let your cattle stay in your neighbor’s pasture eating his grass while you do nothing about it.
One good way to handle strays is for the rancher whose pasture they are in to pen his own cattle along with the strays. The other rancher can then load his cattle and take them home. Afterward, both ranchers can work together on any fence repairs.
By the way, a gate between neighbors is almost always a good policy.
Take ownership
The only way to avoid mistakes is to do nothing. But it isn’t in us as ranchers to sit around and watch the world go by. We are men and women of action, so things are going to go sideways from time to time.
When that happens, and it will, own your mistakes. Decisive action can prevent misunderstandings and make a problem go away much faster.
Be honest, and never, ever lie.
Be patient
We all have bad days. When your neighbor is a little grouchy, he or she probably has something weighing on them.
That is a chance to be a good neighbor. Be patient. Be a good listener. Help your neighbor through the turmoil if you can.
Respect property boundaries
Trespassing is wrong, illegal and rude. Never do it except in an emergency.
In the Southwest, where we live, land ownership is considered a sacred right, and it is a right available to anyone. With ownership comes an expectation of privacy and respect. When you trespass, you violate those rights.
And yes, it is trespassing when you cross a fence to fish or hunt without permission. Texas is a private-property state, which makes respecting these boundaries especially important.
That doesn’t mean you can’t have an understanding with your neighbors that lets you onto their land. Many good friends and neighbors work together on one another’s ranches, but both parties should always communicate well.
You have a cell phone. Use it any time you doubt whether you have the right to go through the gate. An invitation onto another person’s ranch is a privilege, so don’t abuse it.
Your word
Your word as a rancher, neighbor, man or woman helps define you in your community and throughout your life. Your neighbors want to trust you. They want to know that all they need from you is a handshake and that they can depend on what you say.
It is a blessing to live in North Texas, where people still respect and honor a life lived with truth and love.
A good life to live
Having good neighbors is a great way to live. It brings comfort and enjoyment to life. Sometimes it takes a little extra effort, but a friendly neighborhood, even one that covers many acres, is enjoyable and can help keep all of us safer.
It is worth the effort.
The Bible
The Bible has many references to being a good neighbor. Being a good neighbor was good judgment 2,000 years ago, and it is good judgment today. Jesus made it clear that love should guide a good neighbor.
Leviticus 19:18 tells us to love our neighbors as ourselves. That is a tall order. In Matthew 5:44, Jesus takes it further, telling us to love our enemies and pray for those who persecute us.
Our goal should always be to love one another, lift each other up, and help and protect our neighbors.
All of us face drought, floods, wildfire, tornadoes, low cattle prices, rattlesnakes and feral hogs, so let’s fight the fight together. Stand by your neighbor’s side, and he will stand by yours.
A North Texas minister was recently asked, “What do you do if you have a neighbor who is really hard to love?”
His answer was short and to the point: “Love him anyway.”
Farm & Ranch
Beyond Crude Protein
By NTFR Staff
A stack of hay may look good from the outside. The bales may be heavy, green and free of obvious weeds or mold. None of that tells a cattle producer what the hay will provide once it reaches the feed bunk.
Two bales from the same field can differ noticeably in nutrition if they were cut at different stages of maturity, weathered differently or stored under different conditions. The differences grow even larger when you compare hay bought from separate farms or produced in different growing seasons.
A forage analysis takes much of the guesswork out by showing what the hay contains and where you may need to supplement.
Crude protein is often the first number producers check, but it is only one part of the report. Energy, fiber, moisture and possible toxicity concerns can matter just as much when deciding whether a lot of hay suits dry cows, lactating cows, replacement heifers or growing calves.
Reading beyond the protein number
Most forage reports show results on both an “as received” and a dry-matter basis. The as-received column includes the water in the hay. The dry-matter column takes moisture out of the calculation so you can compare feeds with different moisture levels fairly.
For ration planning, the dry-matter values are usually the most useful. If you’re comparing dry hay with silage, cubes or another feed, make the comparison on a dry-matter basis rather than on the numbers as fed.
Moisture still deserves attention. Hay baled too wet is more likely to heat, mold or deteriorate in storage. In severe cases, heating can create a fire risk. Moisture also affects how many pounds of actual nutrients you are buying. A heavy bale isn’t necessarily a nutrient-dense bale if much of its weight is water.
Crude protein, usually listed as CP, estimates the protein in the forage based on its nitrogen content. Protein keeps the rumen microbes that help cattle digest forage working. When forage protein drops too low, intake and digestion may decline because those microbes can’t function as well.
The amount of protein a cow needs changes a great deal through the year. A mature, dry cow in mid-pregnancy needs less than a cow in late pregnancy or early lactation. Young, growing cattle and first-calf heifers may also need more protein than mature dry cows. Hay that is adequate for one group may fall short for another.
Always compare a forage report with the needs of the cattle that will eat the hay. Oklahoma State University notes that cattle requirements vary with weight, age, stage of production, desired gain and milk production. A single protein target can’t describe the needs of an entire herd.
Energy is another major piece of the feeding decision. Many forage reports express energy as total digestible nutrients, or TDN, an estimate of the digestible energy in the feed. Protein supports rumen function and tissue growth, while energy fuels maintenance, pregnancy, milk production and weight gain.
Hay can test well for protein and still come up short on energy. That matters most for cows nearing calving or producing milk. Low-energy hay may leave cattle feeling full without giving them enough nutrition to hold body condition. University of Nebraska Extension stresses evaluating both protein and energy when judging the feeding value of forage.
Fiber measurements help explain why cattle eat one hay readily and less of another. Neutral detergent fiber, or NDF, represents much of the plant’s structural material, including cellulose, hemicellulose and lignin. As NDF rises, cattle generally eat less because bulky, fibrous forage stays in the digestive tract longer.
Acid detergent fiber, or ADF, includes the least digestible parts of the plant. Higher ADF generally means lower digestibility and less available energy. Put simply, high NDF can limit how much cattle eat, and high ADF can mean they get less energy from what they do eat.
Both numbers tend to climb as forage plants mature. Mature hay usually has more stem and less leaf than hay cut earlier. It may still be acceptable feed for animals with lower needs, but it is less likely to support lactating cows or growing cattle without supplementation.
Some reports also include relative feed value, or RFV. This index uses ADF and NDF to compare forage quality, particularly for alfalfa and other legumes. It can help when you compare similar types of hay, but it doesn’t account for every nutrient cattle need. Don’t let RFV replace a closer look at crude protein, energy and the animal’s stage of production.
Depending on the lab package you choose, the report may include minerals. Labs commonly report calcium and phosphorus, but a forage analysis can’t replace a well-designed mineral program. Water quality, other feeds and interactions among minerals all affect mineral needs and availability. Work with an Extension specialist, veterinarian or livestock nutritionist before making major mineral changes.
Nitrate and prussic acid
A standard forage analysis may not include nitrates, and you often have to request that test separately. Nitrate testing is especially important for drought-stressed forage, heavily fertilized fields and crops such as sorghum, sudangrass, sorghum-sudan hybrids, millet, oats and some weeds.
Nitrate can remain in cured hay and doesn’t reliably disappear in storage. Test any hay you suspect of high nitrate before feeding it. Oklahoma State University recommends a laboratory analysis because field screening tests can show that nitrate is present but can’t measure how much.
Prussic acid is a different concern. Unlike nitrate, prussic acid usually dissipates as properly cured hay sits in storage, though suspect forage still needs careful management and professional guidance. Be sure which test you need, and don’t treat the terms nitrate and prussic acid as interchangeable.
Putting the numbers to work
A hay test pays off when it leads to a feeding plan. Once you have the results, you can match the hay to the right class of cattle. Save better hay for replacement heifers, thin cows, late-gestation cows or cows with calves at side. Feed lower-quality hay to mature dry cows with modest requirements.
Testing can also prevent unnecessary supplementation. Without an analysis, you may buy protein tubs, cubes or other supplements your cattle don’t need. The opposite mistake costs just as much. Assuming hay is better than it is can lead to lost body condition, lower milk production, poor breed-back rates and lighter calves.
Visual inspection still matters. Don’t ignore mold, foreign material, weeds, dust or heat damage because a lab report shows acceptable numbers. At the same time, color and appearance can’t reliably predict nutrient content. University of Nebraska notes that forage nutrient values vary widely, which makes average book values a poor substitute for testing the feed you have on hand.
A forage analysis won’t make poor hay better, but it can show you how to use that hay well. For the cost of a test, you get information that can guide hay purchases, cut supplement waste and put each lot of hay where it will do the most good.
The protein number may get the most attention, but it doesn’t tell the whole story. Understanding moisture, TDN, NDF, ADF and potential toxicity gives you a much clearer picture of what is inside the bale.
Farm & Ranch
Don’t Be Caught Off Guard
By Savannah Magoteaux
A September rain can be exactly what a North Texas pasture needs, but that flush of green can bring an unwelcome guest.
Fall armyworms are a familiar late-summer and early-fall pest across Texas, and they can do serious damage to pastures and hay fields when conditions are right. Bermudagrass is a common target, but armyworms also feed on small grains, ryegrass and other forage crops. The key is catching them early, before a manageable infestation turns into a field that seems to disappear overnight.
Despite the name, fall armyworms are caterpillars. The adult moths migrate into Texas and lay masses of eggs on grasses, fence posts, buildings and other surfaces. Once the larvae hatch, they start feeding on plants.
Young armyworms are small and hard to spot unless you are actively scouting. As they grow, their appetite climbs. Larger larvae can strip leaves fast, leaving stems behind and cutting into available forage or hay yield.
Look for an inverted, light-colored “Y” on the caterpillar’s head. Mature larvae can reach about 1½ inches long and often have several dark and light stripes running the length of the body.
Armyworms feed most actively during the cooler parts of the day, so early morning and late afternoon are good times to scout. Walk through several areas of the pasture rather than checking only along the edge. Look closely near the soil surface and beneath grass leaves, especially where you see fresh feeding damage.
Scouting matters most after rain or irrigation. New grass growth draws newly hatched larvae, and populations can build quickly when conditions favor them.
Texas A&M AgriLife Extension generally recommends considering treatment in improved pastures when you find about three or more armyworms per square foot. The decision should also weigh the size of the larvae, how much forage is present, the expected hay value and how severe the damage is.
Timing matters. Small armyworms are easier to control than large ones, and an insecticide does less good once the caterpillars are nearly mature and have already eaten much of the forage. If you treat, follow the product label carefully, including grazing and hay-harvest restrictions.
Don’t assume one treatment or one scouting trip will carry a pasture through the season. Fall armyworm moths can keep moving into an area, laying more eggs and starting another generation of larvae. Keep checking fields even after you have controlled an infestation.
For hay producers, an approaching harvest date can also shape the decision. When the crop is close to harvest, cutting the field may be a better option than spraying. The best choice depends on the number and size of the armyworms, how much forage remains and whether the weather allows you to cut hay.
September rain is usually welcome across North Texas, especially after a long, hot summer. Just remember that fresh green grass deserves a closer look. A few minutes of scouting can make the difference between catching fall armyworms early and finding the damage after they have eaten their fill.
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