Farm & Ranch
[AgriLife Extension] Texas crop and weather report for Aug. 17
By: Rod Santa Ana
Changing weather patterns likely to keep state’s drought in check
Writer: Rod Santa Ana, 956-878-8317, r-santaana@tamu.edu
Contacts: Brad Cowan, 956-383-1026, b-cowan@tamu.edu
WESLACO – An offshoot of the changing weather system that produced severe and unprecedented flooding in Louisiana should persist throughout most of Texas, helping to check or even eliminate drought conditions that had been developing this summer, according to a weather expert.
While the system shouldn’t impede the summer harvest of cotton and grain statewide, it likely won’t provide much drought relief to South Texas, said Barry Goldsmith, the warning coordinator meteorologist at the National Weather Service in Brownsville.
“The weather pattern that featured a persistent ‘heat dome’ of atmospheric high pressure over Texas through much of July and the first week of August appears to be changing for the remainder of the month,” Goldsmith said.
The change brought heat relief and substantial rainfall to regions of Texas including the east, southeast, central and southern parts of the state, he said.
“The forecast pattern for Texas to close August will be transitioning to one that is more late spring-like rather than late summer-like, with a few twists,” Goldsmith said.
Those twists include atmospheric conditions that will likely lift tropical moisture northward, producing clusters of showers and thundershowers which “should help keep the drought in check across central and north Texas, if not eliminate such conditions in several areas,” he said.
“The axis of heavier rain and potential flooding is likely to extend from the Big Bend region northeast to the Dallas metroplex and east to include much of east and southeast Texas,” Goldsmith said.
The rain events and cloudiness will help put a cap on temperatures.
“We’ll probably see below to much-below average temperatures for late August in those areas where the most rain is likely to fall,” Goldsmith said.
Brad Cowan, the Texas A&M AgriLife Extension Service agent in Hidalgo County, said summer harvesting of grain sorghum and cotton appeared to be going smoothly statewide, including in South Texas, where grain sorghum is all but harvested, but cotton growers could use another few days of dry weather to finish their 2016 crop.
“We got some isolated heavy showers this week that may have slowed or delayed some pockets of cotton harvesting in extreme South Texas, but overall our harvest is going well and could be done soon, given another 10 rain-free days,” he said.
Goldsmith said South Texas will likely get the hot, dry weather Rio Grande Valley cotton farmers need.
“The Valley will likely continue to sit under the remnant core of the ‘heat dome,’ perhaps through month’s end,” he said. “That will keep temperatures slightly above the already hot average and limit precipitation during a time when daily average rainfall begins to rise steadily.”
That means another streak of 100-plus degree days from Laredo to McAllen beginning late this week and possibly continuing through August, Goldsmith said, with rainfall amounts depending on enough atmospheric moisture available to be triggered by afternoon sea breezes.
“The trend is leaning drier than wetter in this case,” he concluded.
Cowan said the weather notwithstanding, finances are weighing heavily on the state’s cotton and grain producers.
“What we could really use are higher market prices for grain sorghum and cotton,” he said.
Grain sorghum prices continue to be weak, and after gaining some momentum recently, cotton prices have also weakened, according to Dr. John Robinson, an AgriLife Extension agriculture economist in College Station.
“After trending for almost two years in the range of 60 cents per pound of lint, New York cotton futures prices recently rose over 10 cents per pound starting in mid-July, before retreating about 9 cents in mid-August,” he said.
Robinson attributes that initial price rise to the U.S. Department of Agriculture’s “more bullish forecast of world demand in the July supply/demand report,” he said. “This was followed by considerable speculative buying with the apparent view of a weather market. Prices will continue to be influenced by expectations about the effect of recent rain events in West Texas.
A weather market is a typical summer phenomena whereby expectations of changing weather conditions and supply are uncertain, resulting in unpredictable and volatile prices, Robinson said.
AgriLife Extension district reporters compiled the following summaries:
CENTRAL: Temperatures were in the three-digit range. Some brush control was done. Corn harvest was about 75 percent complete with yields averaging 60 bushels per acre. Grain sorghum harvests were averaging 2,800 pounds per acre. An increase in yellow sugarcane aphids were seen in sorghum. Most of the soybeans were harvested. Cotton was nearing completion with some fields nearing leaf drop. Cattle remained in good body condition, and stock pond levels were holding steady. Overall range and pasture conditions were fair. Hay baling continued in most areas.
ROLLING PLAINS: Some counties received beneficial rains with totals from 3.5 to 5.5 inches one day and another 1-2 inches a few days later. The rain put out several grass fires that were started by lightning. The majority of the region stayed hot and dry. Cooler nighttime temperatures started, which helped relieve some of the stress on crops and rangelands. Forages seemed to be holding up well. Producers continued to plan fall and winter forages and whether to add cattle to their operations. Cotton looked fair, and some producers began plowing fallow ground for wheat. Cattle were in good condition.
COASTAL BEND: Hot weather persisted with temperatures reaching 100 degrees, putting pressure on soil moisture and forage crops. Corn and sorghum were all out of the fields, and nearly all rice was out as well. Cotton harvest was progressing quickly due to hot, dry conditions. Cotton fields continued to pick extremely clean, and yields continued to be above normal. Some areas reported that cotton harvest was temporarily interrupted by tropical rains off the Gulf. Hay prices remained low with a tremendous supply on hand. Pasture and range conditions continued to dry out, but there was ample forage, and livestock were doing well.
EAST: The region received scattered spotty rainfall. Pasture and range conditions were good to fair. Marion County was the only county reporting excellent pasture and range conditions. Harrison County reported some parts of the county received 2 inches of rain in one afternoon while other parts of the county received no rain. San Augustine County received approximately 4 inches of rain over the weekend. Most counties were still in need of rain. Subsoil and topsoil conditions remained short to adequate. Pond and creek levels were dropping. Cherokee County had worsening drought conditions. Jasper County reported sandy topsoil was drying out fast. Hay production decreased due to the dry conditions. Some producers were still optimistic of getting additional hay cuttings following recent rainfall. Producers continued to monitor and treat hay fields for armyworms and grasshoppers. A severe infestation of armyworms was reported by Cherokee and Wood counties. Cattle prices were holding steady. Livestock were in fair to good condition. Calves were growing, and the calf market was good. Weaning and selling of market-ready calves and cull cows continued.
SOUTH PLAINS: Bailey County producers received light, scattered showers last week, but no significant rainfall totals. Sub- and topsoil moisture levels in Cochran County were very low. The majority of corn crops have dried out. Dryland cotton, sorghum, pastures and rangeland needed moisture. Irrigated cotton, sorghum and peanuts were holding. Cattle were in good condition. The Dawson County area received some much-needed rain but also received some hail. Most dryland cotton was blooming out of the top and irrigated fields were looking really strong. Floyd County received moisture in parts of the county, but it was very minimal and spotty. Dryland crops were really suffering due to lack of moisture. Lubbock County finally received some much needed rainfall across a large portion of the county, which will help to fill out cotton bolls and will help corn and sorghum move closer to maturity. Reports of increased bollworm moth activity had producers on the lookout for possible late-season infestations. In Scurry County, producers did not receive any rainfall. Passing rains in Swisher County helped the struggling crops where irrigation wells were pumping hard the last few weeks. Sorghum was progressing well with limited pest pressure. Some corn began to draw down due to heat stress.
PANHANDLE: Most of the region saw some cooler temperatures at the start of the week then warmed back to near normal by week’s end. Some moisture was received in most areas. Soil moisture was still rated mostly short. Rain was still needed throughout the region. Irrigation was active. In Collingsworth County, cooler conditions toward the beginning of the week gave the cotton some much needed relief. Some bacterial blight moved through due to the cloudy, humid conditions and cooler temperatures. Deaf Smith County had spotty rainfall amounts that helped crop conditions. Most producers were pushing irrigation wells as hard as possible as crops neared maturity. Corn was in good shape as long as the wells were running. Corn fields without irrigation will not be harvested, and some irrigated fields or parts of circles were abandoned. Moth trap numbers were still very high with many producers applying a second Southwest corn borer insecticide application. Grain sorghum was coming along, however sugarcane aphids were found in several places, and some fields reached high enough levels to need a pesticide application. The cotton crop was all over the board with mainly the irrigated cotton being counted on for harvest quality. Hall County temperatures came down a little giving relief to crops and cattle. Spotty rain helped, but a wider spread event was needed to assist with crops and pasture growth and development. Ochiltree County received good general rains allowing producers to cease irrigation. Wheat preplant field work continued with rains helping soil moisture conditions. Dryland grain sorghum looked very promising with recent rains. Randall County was still hot and dry. Some scattered showers occurred but were extremely spotty. Ranges and pastures continued to vary in ratings from very poor to excellent with most reporting good to fair.
NORTH: Topsoil and subsoil moisture was mostly very short to short. The week started off extremely warm with temperatures over 100 degrees and the heat index near 110 degrees. Toward the later part of the week, a cool front came through dropping temperatures to the mid 80’s. Sporadic and short rain showers provided some moisture. Corn was still being harvested around the county. Yields weren’t quite what producers expected but were still around the average yield marks for the county. Grain sorghum was doing well and nearing harvest. Soybeans were doing well despite all the heat. Cotton looked nice. Bermuda grass pastures were struggling a little with the lack of rainfall, however there was a good amount of forage left in pastures due to plentiful rain in the early summer. The extreme heat started to stress livestock.
FAR WEST: Temperatures dropped to the 90’s. Thunderstorms and heavy winds were reported in most counties with rain totals ranging from zero to 5 inches. Flash flooding was reported in the mountain regions. Regan, Upton and Glasscock counties continued to have drought conditions. Rangeland fires were reported in Reagan County. Cotton needed rain to freshen the crop and set more bolls. Sorghum harvest was in full swing. Cattle continued to stay in good condition. Supplemental feeding of livestock and wildlife was necessary in Upton County. Producers completed needed maintenance to prepare for fall work. Cantaloupe and watermelon harvest continued.
WEST CENTRAL: Most of the district was dry, windy and very hot. Triple digits were extreme. Some isolated showers were reported in many areas. Temperatures went down with the weather front that went through. Grain sorghum was maturing fast. Harvest started on some sorghum fields. Yields were slightly above normal. Corn harvest was underway with fair yields reported. Cotton squared and was beginning to set bolls. Rain was needed to continue good growth. Reports of spotty cotton aphids and stink bug pressures were noted. Range and pastures were in poor to fair condition. Soil moisture continued to decline. Forage growth decreased due to hot, dry weather. Livestock remained in fair to good condition. Cattle prices were going up, which was great for the ranchers. Some stock tanks and ponds caught a little runoff from recent rains. Pecan crops appeared to be holding.
SOUTHEAST: In Chambers County, the rice harvest progressed with dry field conditions. Pastures were very dry. In Fort Bend County, livestock were in good condition. Many cotton producers were planning to defoliate or had already started, but rain delayed that. Walker County was in need of rain to green the pastures and fields. In Brazos County, hot and dry conditions persisted. In Jefferson County, the temperatures were hot. Rain showers cooled things off allowing a break from the heat. Livestock and crops were doing well despite the hot temperatures. Soil-moisture levels throughout the region ranged widely from adequate to very short, with most ratings in the short range. San Jacinto County reported 100 percent adequate. Rangeland and pasture ratings varied widely too, from excellent to poor, with fair ratings being the most common. San Jacinto County reported 100 percent fair.
SOUTHWEST: Hot and dry conditions continued throughout the region. With the recent rain received throughout the area, the topsoil moisture levels increased slightly. This should keep available forages from declining. Milo and corn harvests were close to completion, and some hay was being made. Livestock continued to remain in good condition. Rangelands were still dry as weaning of lambs and goats continued.
SOUTH: Counties in the northern part of the district reported soil moisture levels as adequate with the exception of Frio County, which reported short levels. Corn and sorghum harvests there were completed, cotton was in the boll open stage and ready to be defoliated, peanuts were in the pegging stage, and irrigated Bermuda hay was being cut and baled. In Atascosa County, peanut fields, sesame fields and cotton had appreciable rain. In McMullen county, range and pasture conditions remained in fair condition. Horn fly populations were on the increase, and body condition scores on cattle remained good. A couple of showers around the Brooks County area measured about 1 inch. The numbers of cattle in the sale barns were high, but sale prices remained mediocre. In Jim Hogg County, the hot, dry weather led to moisture levels being very short. The corn and grain sorghum harvests were complete in Jim Wells County, and cotton harvest began. In Kleberg and Kenedy counties, early planted cotton was mid-way through harvest. Hot, dry conditions were taking a big toll on pastures and rangelands. Cattle prices continued to decline at area auction barns. Webb County received some moisture, yet conditions were extremely hot with temperatures reaching over 105. Dimmit, Maverick, Zapata and Zavala counties all reported dry conditions with a need for significant rain throughout the area. In the Zavala County region, range and pasture conditions remained mostly fair, however a few producers reported pockets of native range and pastures were approaching poor conditions and may force some supplemental feeding for livestock if no rainfall was received. Plowing of corn and sorghum stubble was active. Starr County reported soil moisture levels as adequate although extremely hot temperatures continued to dry the range pastures. Supplemental feeding of livestock continued. Cotton harvest was in full swing, aided by hot and dry weather in Hidalgo and Cameron counties. Land preparation continued for the fall vegetable crops.
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Farm & Ranch
Sideoats Grama
In 2015, we introduced this “Grazing North Texas” series by highlighting one of our most important forage plants, Sideoats grama. On this 11th anniversary, we will take a closer look at this unique and valuable species.
Every Texan should be aware that Sideoats grama is the Texas State Grass. It was recommended for this honor in 1971 by the Texas Council of Chapters of the Soil Conservation Society of America and the Texas Section of the American Society of Range Management, and was officially adopted by Senate Concurrent Resolution 31 in 1971.
Resolution 31 states, in part, that “Although there are many desirable forage species native to the State, one variety, Sideoats grama, occurs on a greater diversity of soils than any other grass; on rangelands of West Texas it is the backbone of the ranching industry.”
Sideoats grama is a deeply rooted summer perennial bunchgrass. It is a mid-grass in height, reaching from 8 inches to 36 inches, depending upon variety and growing conditions. As a mid-grass, it does not produce the total pounds of forage that the tall grasses produce, but the quality of the forage is very good.
Sideoats grama produces high quality, nutritious forage that is relished by all classes of livestock. Crude protein can reach 11 percent in spring green up, decrease to 5 to 8 percent during summer months, and maintain a very respectable 3.5 to 4.5 percent protein after frost, making it one of our most important forage species.
Sideoats has rather wide leaves that take on a characteristic color and curl as the plant matures. The seed head is a zigzag stalk containing small spikes dangling from one side, thus the name Sideoats. Depending upon variety, Sideoats can spread by seed and by small stout rhizomes. It is often found in colonies.
Sideoats is most at home in the mid-grass prairie section of the Great Plains that receives 12 to 20 inches of annual rainfall, but can be found in all areas of Texas (except the far eastern counties), and is adapted to most of the central and western US. It blends well with other native summer grasses such as Little bluestem, Indiangrass, and many mid and short species. It is the most productive of the grama family.
Being adapted to almost all soil types, it has the widest range of soil adaptation of almost all summer perennial grasses. But the best stands are found on medium to fine textured upland sites. It is also better adapted to calcareous and moderately alkaline soils than to neutral or acidic soils.
Sideoats grama can serve many uses, but the best use is as high quality nutritious forage for all classes of livestock. It is also recommended as part of a planting mix for earth fill and bank stabilization, and for establishing grass on critical areas. It was noted in 1944 that it was one of the important grasses remaining in large areas that were affected by the drought of the 1930s, and played an important role in reclaiming those damaged acres. Successful stands can be obtained on rocky and shallow soils.
Sideoats provides some forage for antelope and deer when actively growing. Elk use it for forage throughout the year, and wild turkey consume some seed.
Several varieties have been bred and produced over the years. One of the early varieties was ‘El Reno’ Sideoats grama, bred and released in Kansas in 1944. Another variety, Haskell, was released in 1983 by the James E. (Bud) Smith Plant Materials Center in Texas. Haskell is still widely used in plantings today.
Farm & Ranch
Raising Chicks
By Landon Moore
If you keep or are interested in keeping poultry, you will have the desire to raise young birds at some point. If you order chicks, or decide to incubate and hatch eggs, it will be necessary to learn how to brood the resulting hatchlings. While this will vary in specifics between species, the basic rules remain the same. In this article, the word “chicks” will be used, but the general information following also applies to goslings, ducklings, keets, poults, etc.
Brooding poultry is caring for the chicks during the period when they are growing their first feathers. Chicks hatch with a thin coat of down that leaves them susceptible to chilling. The mother keeps them warm by continuing to sit on the young for the first weeks after hatching. If you plan to hatch your own flock’s eggs you may wonder why you should bother to do it artificially, especially if you have broody birds. The answer is that modern incubators are much more likely to result in live chicks, can incubate far more eggs and keep the extremely vulnerable hatchlings safe as they emerge, especially from ants. Of course if you are purchasing chicks, brooding is your only option.
Before your eggs hatch or the chicks arrive, you will want to have the brooder set up, and ready to go. The first issue to decide is location. You will want a covered and secured place to set up the brooder. Be sure it has plenty of air flow; as anyone who has spent any time with birds can attest, fowl of any age produce an unpleasant smell without adequate ventilation. A barn or other outbuilding could work, but be sure it is well secured. A cat, raccoon or other predator could easily kill your chicks if they get the opportunity. A garage is a great option, offering protection and close access to water and electricity. If it lacks windows you will need to open the garage door a few times per day for ventilation. Inside the house is another option (such as in a disused bathroom) especially for very small poultry. This may seem ideal, offering complete protection, easy temperature regulation, water and electrify, but there are drawbacks. Aside from smell, chicks are unbelievably messy and will require extensive and daily cleaning if the room is to remain in even slightly good condition.
The next choice is what the brooder box will be. You can purchase large metal brooders built for hundreds of chicks or expensive tiered systems on rollers. However the best option is usually a plain, heavy-duty plastic storage box. Cheap, easy to move, simple to clean and sanitize, these are the most versatile and efficient option.
The chicks will require (in addition to shelter) heat, bedding, feed and water. The heat will come in the form of a small heat lamp or even a very strong and hot light bulb suspended above one end of the brooder box. Be sure it is securely prevented from falling into bedding or you could end up with a fire. You can make a metal screen to place over the box which protects them from predators in addition to falling lamps. Place a thermometer at the surface of the bedding before adding the chicks and adjust the heat lamp until the thermometer measures 95 degrees. You will reduce this by 5 degrees each week until their feathers have grown out. Even if the weather reaches or exceeds this temperature a lamp will be needed at night.
You may be intimidated by charts showing the exact temperature requirements of various poultry species and wonder how you can possibly keep the heat exactly right during daily temperature shifts. You do not need to be overly worried about this. Why? Because the chicks will tell you if they are comfortable through their behavior. After placing them in the brooder simply watch them for a few minutes. Do they crowd underneath the heat, piling on each other to conserve heat? Lower the bulb a bit. Are they straining against the opposite wall and cheeping in stress? Move it further away. Are they fairly evenly spread out, some exploring their new environment and some sleeping under the heat? Perfect. This is why the heat should be placed over one end of the brooder. If it is over the entire box you will have no way of knowing if your chicks are over-warmed.
The next issue is bedding. When the chicks are first placed in the brooder the bedding should be a layer of paper towels or (non-slick) newspaper. This even surface provides good traction for the birds preventing splayed legs and also prevents them from getting stuck somewhere and dying or else ingesting bedding before they learn what feed is and dying. It is always good to keep in mind that chicks of all kinds are morbid little things that will jump at the first opportunity for death in their initial couple weeks of life. It is up to you to deny them the opportunity until their self-preservation instinct kicks in. Chicks mature shockingly fast and in just a couple of days the bedding may be exchanged for pine shavings. You may still want a layer of paper at the bottom to make cleaning easier. You do not want to disturb the chicks without necessity, so you can add a fresh layer of shavings a couple of times as needed before you completely clean the box.
Commercial chick feed is available that is meant to be suitable for all species. For game birds, guineas and turkeys it’s often better to just use an adult gamebird crumble feed as their protein requirements are extremely high. For waterfowl, be sure the feed has enough niacin if it isn’t specifically formulated for them. If it does not have enough, you can sprinkle some brewer’s yeast over the top. Medicated feed is usually formulated for chicks specifically and may not be safe for other species (especially for waterfowl), so be sure to check before feeding. Chicks aren’t especially bright and may not be able to figure out how to operate the feeder at first. You can help them by placing a small pile of their feed on a paper plate (or paper towel for quail) where they can see it more easily.
For waterers, their basically two main types; open waterers and bottles. The bottles can be complicated with multiple pieces and nipples to drink from or simply a two piece plastic quart jar and base that screw together. The open waterers will usually be a miniature trough with a hinged or sliding lid that allows the chicks to stick their heads in without falling into the waterer and drowning. Generally the bottle type waterers will stay cleaner and hold more, but for waterfowl open waterers are preferred so they may submerge their bills for cleaning. Quail should be given bottles with special quail bases which are very small to prevent drowning. It can be extremely beneficial to dissolve a couple tablespoons of sugar (or commercially-made chick electrolytes) into the water for the first few days, especially if the chicks came by mail. Provide chicks with warm water the first few days (use your inner wrist to determine a suitable temperature, as you would milk for a bottle) to prevent chilling them. Be sure to carefully dunk each chick’s beak into the water when they are placed in the brooder so they learn what it is.
Chicks are most fragile for the first three days and should be handled as little as possible. When shipped, they will arrive stressed and possible chilled and care during this period is the most crucial. For the first three days after hatching, chicks are still absorbing their egg yolk and will not require outside nutrition and therefore may eat sparingly. It is best practice to sanitize the feeders and waterers regularly, but be aware that all birds will leave manure in their water. Don’t let the water remain filthy, but don’t expect it to remain sterile, either. Likewise, a stinking bog will not yield thriving poultry, but it is unnecessary to fanatically clean the brooder constantly. When the chicks are fully feathered will vary by species (three weeks for quail, six weeks for chickens), but once this happens it will be time for your young feathered friends to graduate to their new pens.
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.
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