Farm & Ranch
[AgriLife Today] Texas crop and weather report for June 27
By: Adam Russell
Conditions right for plant diseases around much of the state
- Writer: Adam Russell, 903-834-6191, adam.russell@ag.tamu.edu
- Contact: Dr. Kevin Ong, 979-845-8000, kevo@tamu.edu
COLLEGE STATION – Disease problems for vegetable producers and gardeners are popping up around the state, according to a Texas A&M AgriLife Extension Service expert.
Dr. Joe Masabni, Texas A&M AgriLife Extension small acreage horticulturist, Overton, said a few of his tomato trial plants have shown signs of early blight as shown but that he has yet to confirm the disease’s presence. (Texas A&M AgriLife Extension Service photo by Adam Russell)
Conditions have been good for vegetable production around much of the state following mild spring conditions and ample rains, but the weather is also setting the stage for plant diseases, said Dr. Kevin Ong, AgriLife Extension plant pathologist and director of the Texas Plant Disease Diagnostic Laboratory in College Station.
Ong said producers have been seeing early blight, a fungal pathogen, in tomato plants. Symptoms of early blight include yellowing of bottom branches and blotches on leaves.
Hot, drier conditions recently could allow another threatening fungal pathogen to affect vegetable gardens and fields, he said.
“It’s getting hotter, so I am predicting that with all the early moisture, I would not be surprised to see an increase in southern blight incidence,” he said.
Southern blight infestations can infect a variety of vegetables including squash, tomatoes and zucchinis, Ong said. Symptoms include white fungal growth visible at the base of the plant. Plants quickly wilt and die from the disease, while the root system often looks normal. Go to http://bit.ly/2rUZHJF for general information, and see http://bit.ly/2tcuLrH for information on tomatoes.
There are not many effective treatment options available for home vegetable growers to deal with southern blight, Ong said.
“The best thing you can do is sanitation,” he said. “The fungus sclerotia can survive in the soil, so cleaning up your garden area well and getting rid of diseased plants as soon as they show symptoms is a good idea.”
Solarization, a practice of using plastic to cover moistened, tilled soil to increase the temperature, can help reduce sclerotia numbers. Sclerotia is a plant fungus and can cause white mold if conditions are conducive. Sclerotia can be killed in four to six hours at 122 degrees. Amending soil with compost or organic matter can help reduce southern blight incidence by encouraging growth of biological antagonists. The biocontrol agent Gliocladium virens has also been shown to suppress Sclerotium rolfsii, he said.
AgriLife Extension district reporters compiled the following summaries:
CENTRAL: Field work continued, including spraying cotton for insects and baling hay. Corn silage harvests were going full speed in some areas, while other producers expected to harvest within three weeks. Yields and quality looked good. Grain sorghum was progressing well with some coloring. Sugarcane aphids were not an issue so far this year. Grass conditions were excellent. Some brush work was done. A significant amount of rain fell and caused flooding in some areas. Tanks and other bodies of water were full. Cattle and other livestock were in great condition, however fly numbers on livestock increased. Nearly all counties reported good soil moisture and good overall crop, pasture and rangeland conditions.
ROLLING PLAINS: Conditions remained hot and dry with no moisture. Pastures and rangelands took a turn for the worse. In some counties, pastures were drying out to the point wildfires were becoming a serious threat once again. Livestock were in good condition. Producers began feeding supplements to cattle on a regular basis to avoid selloffs. Plantings of this year’s cotton crop were almost complete, but the outlook was bleak due to poor moisture levels. Most cotton acres either haven’t emerged or emerged only to be scorched by hot, dry, windy conditions to the point plants were dying. Cotton that tapped into deep moisture seemed to be doing well, but a good general rain was needed to keep it going. Some producers started spraying mesquite.
COASTAL BEND: Most crops needed moisture, but rain was scattered and may slow the start of harvest in some areas. Early planted corn was drying down rapidly with some rust present. Grain sorghum was coloring with some combines running. Sorghum yields were good thus far, but some producers were concerned with head sprouting, lodging and harvest delays. Cotton was in full bloom, but some cotton had worms. Fertilizer applications were made on hay fields in anticipation of additional rain, and some weed and brush control applications continued. Pastures and livestock continued to do well, however large fly numbers were reported.
EAST: Tropical storm Cindy produced heavy rain in several counties around the region while other counties only received light rainfall. Jasper County reported some wind damage to corn. Subsoil and topsoil conditions were adequate in all but Shelby County, which reported surplus. Cherokee County reported ponds and creeks were full. Pasture and range conditions were good in most counties. Hay baling was slowed due to the rain. Some producers were getting ready for their second hay cutting. Wood County reported armyworms due to recent rains. Wild pig damage remained a problem in hay meadows, pastures and corn, and control was underway in Upshur County. Corn fields in Anderson County were 100 percent dented. Grain sorghum looked good and was heading out with no aphid control needed. Vegetable crops including purple peas, tomatoes, okra and beans were harvested and sold at local markets. Watermelon growers reported high yields and good quality. Cattle were in good condition. In Anderson County, the cattle market was weaker on some classes including cow/calf pairs and bred cows. Feeder steers and heifers ended $3-$7 per hundredweight lower. Slaughter cows finished steady with slaughter bulls ending $1 per hundredweight higher.
SOUTH PLAINS: The district experienced another week of temperatures in the high 90s with gusty winds and some rain. A cool front passed through the area. Showers should help improve subsoil and topsoil moisture conditions, but rain was desperately needed. Some dryland fields were released by insurance adjustors. Other dryland fields had thin or skimpy stands. Wheat harvests were almost wrapped up, and farmers were lucky to avoid major storm events to affect the harvest. Peach harvests were ongoing. Cattle were in good condition.
PANHANDLE: Many parts of the district remained extremely dry, with excessive heat for most of the week. Strong winds over the last few weeks took a toll on soil moisture conditions. Crops were beginning to suffer and it was slowing plant growth. Wheat harvest continued and should wind up by July 1. A few scattered showers halted harvest in the northern part of the district for a day, but hot, dry conditions were the standard. Corn, sorghum and soybeans were being irrigated. Cotton irrigation was expected soon. Dryland grain sorghum was still being planted in some counties. Range conditions declined with the dryer, hotter weather, but pastures overall were in good shape. Cattle were in good condition with fly control occurring. Respiratory complications in some cattle were still being found in the northeastern part of the district due to the March 6 wildfires.
NORTH: Topsoil and subsoil moisture levels ranged from mostly adequate to short with a few counties reporting surplus. This week brought some much needed rain to North Texas with amounts ranging from 1-3.5 inches around the counties. Corn and soybeans were doing well. Cotton was up and looking nice. Wheat and oat harvests were finished with yields averaging 50 bushels and 70 bushels per acre, respectively, and near-average weights on both. Pastures and livestock were in very good condition, and spring-born calves looked good. Insects were beginning to be a problem on livestock with heavy fly and mosquito numbers in some areas. Feral hog activity was moderate with 16 hogs caught in demonstration traps during the reporting period.
FAR WEST: Temperature highs were in the 110s with lows in the 70s. Rainfall totals were near 1 inch. Winds damaged trees and power lines. Lightning damage was reported. Rains came at a critical time for dryland cotton, which was in desperate need of moisture to help establish root system and some fields emerge. Sorghum was in the boot stage or blooming and needed a good rain. The rain supplemented irrigation for all crops. Pastures were very dry, so many ranchers were providing supplemental feed for cattle and reduced their stocking rates to conserve forage. Producers began to ship lambs and kids. Rabbits and deer were moving into cotton and sorghum looking for something green to eat. Pecan trees and fruit trees were faring well but needed irrigation.
WEST CENTRAL: Conditions were hot, dry and windy. High temperatures were in the triple digits most of the reporting period, but cooled down some. Soil moisture was declining rapidly due to extreme temperatures. Home gardeners were pulling the first harvest of fresh vegetables. Wheat harvests were complete in most areas. Cotton planting continued. Cotton fields were beginning to emerge and looked good. Haygrazer fields were in excellent condition and hay reports were good. Cutting and baling was underway. Grain sorghum was in mostly good condition with some fields showing some heat stress. Rangeland and pasture conditions were mostly good. Some grasses and forages were starting to show signs of heat stress and will need rain soon to make it through the summer. Most stock tanks were full. Livestock remained in fair to excellent condition. Markets remained strong in most areas. Cattle prices dropped in some areas with the number of head at auction also down. Pecan crop reports ranged from very good to poor.
SOUTHEAST: Most counties received showers to heavy rains from Tropical Storm Cindy. More than 3 inches of rain was reported in northern Lee County. Walker County was concerned with soil moisture due to evaporation from heat. Montgomery County experienced moderate temperatures. A few showers promoted good growth in pastures and new growth in trees. A few insect pests were present but not to the extent of serious damage. Rangeland and pasture ratings varied from excellent to good with good ratings being the most common.
SOUTHWEST: Available forage was suffering due to the lack of rain. Some areas received rain but the amounts did not help much and rivers were beginning to dry. Rangeland was starting to dry and grasses showed signs of dryness. Temperatures continued to rise and producers were cautious of working during the heat of the day. Fly populations continued to increase. Livestock were in fair condition.
SOUTH: Conditions were hot, dry and windy. Temperatures were soaring well above 100 degrees throughout the district. Rangeland and pastures continued to show signs of stress and fire hazards increased. There were some spotty showers across the northern portion of the district and temperatures cooled from 105 to 90 degrees as a result. Rainfall amounts ranged from 0.2-0.5 of an inch. Potato and sweet corn harvests continued and were nearing completion. Corn fields were maturing. Sorghum fields were turning color and cotton fields were setting-bolls. Pasture and rangeland conditions were beginning to dry. Soil moisture conditions were very short and body condition scores on cattle remained fair despite the harsh summer conditions. The live cattle market remained was steady. Livestock offerings at the local Jim Wells County auction fell below 500 head for the first time this year. Prices were steady with 500-600-pound steers averaging $132 per hundredweight. Wildlife habitat throughout Jim Hogg County was in good condition with good numbers of deer, quail, dove and turkeys reported. Grain harvests were in full swing. Corn and cotton were irrigated. Native rangelands and pastures continued to provide adequate grazing for livestock, but the forage quality was beginning to diminish. No supplemental feeding was reported. Hay was being baled.
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Farm & Ranch
Tracks in the Sand
This morning, I walked out into my arena and noticed something that gave me pause. The roping steers had been in there the day before, and even though the ground was wide and level, the sand carried their story. Hoofprints crossed every direction, but in several spots, the same trail was pressed deeper than the rest. Twelve steers had been turned out, yet more than a few chose the exact same path, wearing it down until it stood out from all the other tracks.
Cattle are creatures of habit. Anyone who has spent time around them knows this. They like routine: the same feed, the same water trough, the same shade tree in the pasture. When they are turned loose, they rarely wander without purpose. More often than not, they move together, following the same course as the steer in front of them. There are reasons for this: efficiency, safety, instinct. Walking a beaten path conserves energy, and following the herd is their natural defense. Even in an arena with no real destination, those instincts come through. By the end of a short turnout, you will see the evidence, lines where they have chosen the easiest way to travel and stuck with it.
Out on the range, those lines last longer. Before fences and highways, cattle drives cut deep paths across the land. The Chisholm Trail, which carried herds north from Texas through Oklahoma into Kansas, was walked by millions of cattle in the late 1800s. More than a century later, faint traces of those trails remain, worn so deep by hooves and wagon wheels that the land still carries the mark. On ranches today, you can see the same effect in pastures where cattle walk the same lines between water and grazing. From the ground those trails might look like nothing more than dusty ruts, but from the air, they sometimes stand out as sharp lines winding through otherwise open fields. Cattle do not simply pass over the land; they shape it. Every step adds up.
That simple truth extends beyond livestock. We all make tracks. Our habits and routines are our trails, worn in by repetition, sometimes efficient, sometimes limiting. Like the cow paths, they can serve a purpose, keeping us steady and helping us move forward. But when repeated without thought, they risk becoming ruts, keeping us from stepping into new ground. History offers perspective here too. The old cattle trails built towns and economies, but once railroads and fences changed the landscape, those paths were no longer useful. Sticking to them would have meant going in circles. Progress required something new.
The Tracks We Leave
Standing in the arena, I thought about the kind of tracks I leave behind. Most of mine are not visible in the dirt. They are pressed into my daily life, how I work, the way I handle challenges, the example I set. Some are helpful and worth keeping. Others may have outlived their purpose. The difference comes in knowing when to stay in the track and when to step out of it.
Tomorrow I will drag the arena and smooth it all clean again. The next time the steers are turned in, they will make the same trails. That is their nature. But unlike them, I have a choice. I can decide which paths are worth walking, which ones to change, and what kind of tracks I want to leave for others who might follow.
Tracks tell a story. Sometimes they are only temporary, fading with the next rain. Other times they last for generations, reminders of where herds and people once walked. This morning, the cattle showed me again that even the smallest things on the ranch carry meaning. Their tracks in the arena were not just marks in the sand. They were a lesson: every step matters, and the paths we choose shape more than just the ground beneath our feet.
Farm & Ranch
Grazing North Texas – American Lotus
Farmers and ranchers are in a very close partnership with Mother Nature. If we really pay attention, she presents us some interesting scenarios.
For example, though they are totally different types of plants, water lilies and prickly pear have a lot in common. They both have strikingly beautiful flowers, both plants are edible, both of them are invaders into their respective habitats, and too much of either one can be an obstacle that we have to deal with.
Many north Texas ranches rely on excavated ponds for livestock water. Any time a pond contains a significant amount of shallow water so that sunlight reaches the bottom, some type of pond weed will develop. The plant family that includes water lilies and lotuses is a common invader in our livestock water.
Water lilies and lotuses are in the same plant family but they are two separate genera. There are easy ways to tell them apart:
• A primary difference is that water lily leaves commonly float on the surface, but lotus leaves can grow above the water line.
• Water lily leaves and flowers are thick and waxy, while lotus leaves and flowers are thin and papery.
• Water lily leaves have a distinct notch in the leaf, while lotus leaves are more rounded.
• Water lily flower petals are pointed, and lotus petals are more rounded.
The photos attached to this writing are from Clay County, and this plant is common across north Texas. American lotus is adapted to a wide area, from Honduras north through Mexico and across the eastern US and into Canada.
American lotus is a perennial, and it is cold tolerant and heat tolerant. It can grow in any pond or slow moving stream that contains shallow water areas. It prefers water with a depth of about 12 inches. Germination can occur from the large lotus seeds. Tubers, or roots, are established in the mud, and long slender stems extend upward. Leaves and flowers are both emergent in that they grow above the water line.
Lotus flowers are fragrant, and yellowish white with rich gold centers. They open in the morning and close by late afternoon, then open again the next day.
Lotus is an edible plant and has a history as a food source. The large tuberous roots, the size of a human arm, were baked like sweet potatoes. The leaves were eaten like spinach, and the large seeds were ground into flour. Stems taste somewhat like beets and were usually peeled before being eaten.
There is a large world-wide industry of cultivating lilies and lotuses in water gardens. According to Dr. Jerry Parsons, Professor and Extension Horticulturist with Texas A&M AgriLife Extension, cultivation of these plants dates back as early as ancient Egypt. Today, anyone with determination and a little money can have a water garden.
In 2011, the 82nd Texas Legislature designated the water lily “Texas Dawn” as the official Texas State Water Lily. Texas Dawn is a hybrid developed by Texas resident Kenneth Landon, a world-renowned expert in the field of water lilies and the director of the International Water Lily collection in San Angelo.
Ducks and other wildlife utilize the large acorn like seeds of American lotus, and submerged portions of all aquatic plants provide some form of wetland habitat. Many of us have tried to pull a bass out of a group of water lilies or lotuses, and I’m sure others have had better luck than I did. Although there can certainly be benefits to lilies, lotuses, and other aquatic plants, they can also infest ponds to the extent that the pond is not functioning correctly.
So, while the rest of the world works hard to grow these plants, ranchers sometimes need to control populations in their stock ponds. Once it gets a foot hold, American lotus can spread aggressively in wetland areas.
The primary issue that encourages American lotus, and most other water weeds, is shallow water. Look closely at a good livestock pond and you will find that the deeper water is basically free of infestation. Any pond will have a certain amount of shallow water that encourages water weed growth, depending upon the terrain at the pond site and how the pond was constructed. Some ranchers who enjoy and utilize wetland habitat may prefer to have ponds with significant shallow water area.
Almost all livestock ponds have a certain life expectancy. Siltation, or movement of soil into the pond bottom through rainfall runoff, is a natural occurrence. How fast siltation occurs into each pond, and how deep the pond was to start with, determines the length of time that the pond will contain adequate depth for dependable water for livestock.
Ponds that develop infestations of water weeds over a large percent of the surface may not have adequate depth to remain a viable water source for livestock during drought periods, especially in western north Texas where evaporation rates are higher.
Mud, or silt, from the pond bottom, can be removed to deepen the water, but this is a very expensive process. It is often more economical to construct a new pond rather than try to remove the silt from an old one. Most of us do not have the funds to continually construct deep water livestock ponds, so we must try to keep existing structures functioning and providing good drinking water for livestock, for as long as we can. Control of pond weeds like American lotus may be necessary, and it can be accomplished.
There is currently no feasible biological control. American lotus can be cut and removed, but this process us usually temporary because lotus can reestablish from seeds and roots.
American lotus can be safely controlled by chemicals. This must be done carefully. If a pond containing a large amount of any pond weeds is treated to remove all of the vegetation, a fish die-off could occur. When the dying weeds decompose, they use up the oxygen in the water and fish can suffocate. If possible, treat only a portion of the area, wait about two weeks, and treat another portion.
Farm & Ranch
The Many Benefits of Rabbit Manure
By Landon Moore
Rabbits offer a lot to the home gardener, and perhaps the most useful of all is their waste. Rabbit manure is likely the single most versatile and valuable fertilizer of any animal manure. It’s a “cold” manure, meaning it can be applied directly to plants in any form without the risk of burning them. In contrast, manure from sheep, horses, cows, and especially poultry must be aged before it’s applied, or it may damage plants. Because rabbit manure doesn’t need to be aged, it retains more of its nutrients and is therefore twice as rich as chicken manure and four times more potent than horse or cow manure. Rabbit manure is safe to apply to soil growing edible crops, has virtually no smell, and contains no harmful seeds. It can be used immediately, or be dried, powdered, made into tea, or turned into worm castings. A single trio of rabbits and their offspring can produce up to two cubic yards of fertilizer per year, along with 100 to 200 pounds of meat.
Rabbit manure is in such high demand as a fertilizer, particularly for roses, that it’s often sold online at a premium price. Some rabbitry owners even charge people to come scoop the manure themselves, paying by the bag. Larger rabbitries might sell by the truckload, but many owners keep it all for their own gardens. You may wonder what makes this little mammal’s excrement so uniquely useful. To understand, we first need to look at the qualities that make it special and then explore its various applications.
To begin with, let’s take a closer look at a rabbit’s biology. Contrary to popular belief, rabbits are not rodents but belong to the order Lagomorpha and family Leporidae, along with hares. All domestic rabbits are domesticated European rabbits (Oryctolagus cuniculus) and are unable to produce fertile offspring with American cottontails. Rabbits are considered “pseudo-ruminants” because they have a single-chambered stomach, but they also have an organ called the cecum, which functions similarly to a rumen and makes up about 40% of their digestive tract. They are crepuscular, meaning they are most active at dawn and dusk, typically feeding in the evening.
Rabbits actually produce two kinds of manure. The familiar dry pellets make up most of their waste, while the other type, known as “cecotropes,” is a moist and smelly substance resembling tiny bunches of grapes. Cecotropes are not fully digested, and because rabbits cannot chew their cud, they reingest the cecotropes as they are excreted. This fermented substance allows the rabbit to absorb more nutrients than it would through initial digestion. While cecotropes are occasionally found in cage trays, the feeding behavior that leads to them is usually only witnessed by the rabbit owner.
The dry pellets are the true manure that most people are familiar with. These small, round, dry pellets have almost no smell when kept dry. When crushed, they break down into a powder resembling tiny grass fragments because, in essence, that’s what they are. Some people crush the pellets before applying them to speed up their absorption into the soil, while others appreciate their “slow-release” feature. Additionally, the manure’s water solubility can be exploited in several ways. Soaking a wheelbarrow full of manure creates a potent sludge that can be easily applied to flat surfaces. If the odor is not an issue, the smell will dissipate once the manure is either dissolved by moisture or dried by the sun. Another method is to make manure tea: fill a cloth bag with manure, seal it, and submerge it in a barrel of water for a few weeks. A simpler method involves placing damp manure at the bottom of a barrel, filling it with water, and letting it sit in the sun for a couple of weeks. Stir occasionally, and you’ll have a powerful liquid fertilizer ready for use.
Domestic rabbits should be fed a modern, pelleted feed, which provides all the nutrients they require. This diet eliminates the risk of noxious seeds being present in the manure, making it safe to apply directly to the lawn, especially during winter. Winter and spring rains will break it down, and by late spring, you’ll have a healthy carpet of turf.
Rabbit manure’s nutrient content varies depending on factors like storage, age, and diet, but it generally contains around 2% nitrogen (N), 1.3% phosphorus (P), and 1.2% potassium (K). The Oregon Extension Service gives a range of 3-4.8% nitrogen, 1.5-2.8% phosphorus, and 1-1.3% potassium. Even at the lower end of the scale, rabbit manure has higher nitrogen content than poultry manure and twice the nitrogen content of cattle manure. One reason rabbit manure doesn’t burn plants is due to the biology of birds, which lack bladders and produce more ammonia in their waste. In contrast, rabbits release ammonia in their urine, which is why their manure may have a stronger odor.
Because of its balanced nitrogen-to-phosphorus ratio, rabbit manure promotes a wider variety of species in the same application area. Applying it directly to heavy clay soils will improve them quickly, especially when combined with other organic matter. It can also improve sandy soils by adding texture and helping them retain moisture. Anyone raising rabbits will have a steady supply of manure, as they are efficient producers. A small herd of 17 animals, including their litters, can produce about one ton of manure annually.
Beyond fertilizing, rabbit manure has several other uses. It is considered the best food for earthworms and can be combined with moisture-holding bedding like peat moss, shredded paper, or hay taken from used nestboxes. Many rabbitries (including my own) keep worm beds right under the cages. The resulting castings are rich in nutrients and can be used as-is or incorporated into soil amendments. A couple of feet of manure under a foot of soil in a hotbox can generate enough warmth to start and grow seeds, even in cold climates like Vermont.
In Europe and Asia, the rabbit meat industry is a billion-dollar market. While the Czech Republic leads in per capita consumption (over 8 pounds per person annually), China is the leading producer of rabbit meat. A recent study in China examined the effects of replacing peat moss in seed-starting soil with rabbit manure. The study found no significant difference in germination rates and noted that the manure provided increased nutrients for seedlings. The ideal ratios for seed-starting soil were found to be one-third manure, one-third perlite, and one-third vermiculite, or half manure and half perlite.
Rabbit manure is often overlooked as a nuisance, but as we can see, it’s an incredibly versatile soil conditioner, excellent fertilizer, ideal food for earthworms, and a superior seed-starting medium. Anyone raising rabbits should consider this another benefit, in addition to having a home meat supply, exhibition livestock, or pets.
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