Friday, November 19, 2010

WILDFIRE DANGER ISSUE ADDRESSED

            The above normal rainfall from this past Spring and Summer here in South Texas, followed by drier than normal conditions this Fall have led to conditions that could to lead to wildfires in the coming weeks, as the fuel load from good forage growth, which is now drying along with drying soils and lower humidity, provides the perfect conditions for wildfire on our rangelands and pastures.  To address this issue, the National Weather Service’s 2010 South Texas Fire Weather and Drought Partners meeting will be conducted on Wednesday, December 15, 2010 at the Del Mar College - West Campus, 4101 Old Brownsville Rd, Corpus Christi, Texas.  The meeting will be held in the Emerging Technologies Building, Room 105, with registration beginning at 8:00 a.m. followed by the program from 8:30 a.m. to 4:15 p.m.
            This meeting is designed for wildfire and prescribed burn interests, farmers and ranchers, broadcast and print media, and emergency managers.  The meeting will provide a detailed outlook for the 2011 fire season, comparisons of this season to recent wet to dry pattern transitions, drought outlooks, lessons learned from recent prescribed burns, decision making in ranching based on weather predictions and much more.  Pesticide applicators will be awarded 3 CEU’s for participating in the meeting. 
            Specific topics to be addressed will include; Fire and Drought Management, Impacts of Wet to Dry Season Transitions, Texas Forest Service Predictive Services Outlook, Lessons of Recent Prescribed Burns in Drought Stricken South Texas, Spring Outlook from State Climatologist, Benefits of Prescribed Burning, Decision Making in Ranching base on Weather Predictions, Pasture and Range Management, and Pesticide Laws and Regulations Update.
            Sponsors of this program include; The National Weather Service, Texas Forest Service, The Nature Conservancy, Office of the Texas State Climatologist, Texas Department of Agriculture and Texas AgriLife Extension Service.  All those planning to participate are asked to pre-register by December 8, 2010 to Jason Runyen via e-mail @ Jason.Runyen@noaa.gov or 361-289-0959 ext 1, as attendance will be limited to the first 100 RSVPs.  

Individuals with disabilities, who require an auxiliary aid, service or accommodation in order to participate in any of the mentioned activities, are encouraged to contact the County Extension Office eight days before all programs for assistance.  Extension programs serve people of all ages regardless of socioeconomic level, race, color, sex, religion, disability or national origin.       

Wednesday, November 17, 2010

Monday, November 1, 2010

COTTON VARIETY TEST RESULTS POSTED

Results from two cotton variety trials in Nueces County, including yield and lint quality data are complete and the good yields are reflective of  the good growing conditions that we had in 2010.  Recently cotton prices have moved well above $1 per pound and this should increase the acreage for the 2011 crop in the Coastal Bend.  Selecting the best suited variety for your farm remains one of the most important early decisions you can make as you plan for next year’s crop.
    A Uniformed Stacked-Gene Variety Trial was conducted with Jim Massey IV, just northeast of Petronila.  The plots were planted on March 27 with three replicates per variety in a randomized complete block design on 30-inch rows.  This dryland test was harvested by machine on August 27, 2010.  There were ten varieties in the test.  The test averaged just over 1,263 pounds of seed cotton per acre.  The best two performing varieties (no statistical difference between the two) were FiberMax 1740 B2F at 1,446 pounds per acre with a loan value of $0.537 per pound and DeltaPine 0920 B2RF at 1,403 pounds per acre with a loan value of $0.5118 per pound.
    Other varieties in this test and their yields were as follows; ST 5458 B2RF @ 1,315 lbs./ac, PHY 367 WRF @ 1,280 lbs./ac, ST 4288 B2RF @ 1,251 lbs./ac, PHY 375 WRF @ 1,231 lbs./ac, CL 3220 B2RF @ 1,208 lbs./ac, DP 1032 B2RF @ 1,186 lbs./ac, FM 9160 B2F @ 1,167 lbs./ac, and AT Apex B2RF @ 1,150 lbs./ac.  Overall the lint values per acre of this test (using the loan value) ranged from $616.70 to $776.30 per acre.
    A Liberty Link Cotton Variety Trial was conducted with Darrell Lawhon, east of Bishop.  The plots were planted on March 26 with three replicates per variety in a randomized complete block design on 38-inch rows.  This dryland test was harvested on August 17, 2010 by machine.
There were six varieties in this test that averaged more than 1,140 pounds of seed cotton per acre.
The best two performing varieties (no statistical difference between the two) were FiberMax 1845 LLB2 at 1,269 pounds per acre with a loan value of $0.5198 per pound and FiberMax 835 LLB2 at 1,223 pounds per acre with a loan value of $0.5418 per pound.
    Other varieties in this test and their yields were as follows; FM 1015 LLB2 @ 1,122 lbs./ac, FM 1035 LLB2 @ 1,094 lbs./ac, FM 1025 LLB2 @ 1,076 lbs./ac, and FM 1773 LLB2 @ 1,059 lbs./ac.  Overall the lint values per acre of this test (using the loan value) ranged from $544 to $659.70 per acre.
    These tests would not possible without the cooperation and support of local farmers and various seed companies, and for that we should all be grateful.  More detailed information about these tests can be obtained from the Nueces County Extension Office or can also be found on the web at   http://nueces-tx.tamu.edu/pubcat.cfm?COUNTY=Nueces&CatID=2757
For more information contact the Nueces County Extension Office at 361-767-5223.

Tuesday, October 19, 2010

Agricultural Waste Pesticide Collection Program - October 28

    The Texas AgriLife Extension Service, Texas Department of Agriculture, and Texas Commission on Environmental Quality has organized a regional collection of unwanted or unused (waste) pesticides as part of the Agricultural Waste Pesticide Collection Program.
The local event will be held on Thursday, October 28, 2010 from 8:00 a.m. to 1:00 p.m. at the San Patricio County Fairgrounds located at 219 W. 5th Street in Sinton, Texas.
    This free collection, conducted rain or shine, will give agricultural producers who use pesticides in Texas an opportunity to dispose of unwanted products that may pose a hazard to them, their families, and their surrounding farming and ranching communities. The program is strictly voluntary and no one is required to participate. All this is done at no expense to them.
The participants do not have to identify themselves. However, there is a short survey in which the participants are asked to complete.
    These items are accepted at the collection events; triple rinsed - empty pesticide containers, insecticides, fungicides, rodenticides, nematicides, bactericides, growth regulators, harvest aid chemicals, pesticides used on livestock, other miscellaneous pesticides, all formulations of herbicides, unknown substances (please label the container "unknown"),  used motor oil and oil filters, lead-acid batteries, paint, petroleum products, batteries, and antifreeze.
    Correctly using these agricultural pesticides and safely recycling, reconditioning, or disposing of the empty containers is a must for all agricultural users. Proper use and management practices can help keep you and others safe. Unusable or waste pesticides can be disposed of at regional waste pesticide collections. However, there are limited options for disposing of pesticide containers.
    Currently, properly rinsed agricultural chemical containers are not classified as hazardous waste, and in many cases, are disposed of in sanitary landfills. However, due to limited capacity problems and more stringent state regulatory requirements, many landfills have already begun to refuse these containers. Other methods once used to destroy these containers, such as burning or burying them, are no longer viable disposal options. In Texas, open burning of pesticide containers is illegal and disposal at specially designed incineration facilities is often too costly for the average applicator.
    Burying these containers may lead to serious environmental consequences, such as groundwater contamination. Today, many environmentally concerned land developers, buyers, and lenders require that environmental audits be conducted on a property before it is purchased or sold. For these reasons, burying agricultural chemical containers is not recommended.
    Disposal options for empty agricultural chemical containers are becoming more limited in Texas, so government and industry are promoting and researching alternatives such as recycling.
Agricultural chemical containers come in many shapes and sizes and may be made of paper, metal, or plastic. Empty paper containers cannot be reconditioned or recycled; take them to an authorized incinerator or landfill. Metal and plastic containers can be reconditioned or recycled if they are properly rinsed.
    Rinsing containers is required by law, but it is a simple, essential step before they can be recycled or disposed. Rinsing them can minimize health and environmental risks, as well as save money by ensuring that none of your agricultural chemical product is wasted.  
    The upcoming Ag waste collection is open to Texas residents who apply pesticides or other agricultural chemicals for the production of agricultural products in Texas or for those residents that have banned or unwanted agricultural chemicals.  For more information contact the San Patricio County Extension Office at 361-364-6234 or TCEQ at 512-239-3100.

Monday, September 27, 2010

WHEN IT RAINS IT POURS!

Wow, last week was one for the record books for Nueces and surrounding counties, as the rain just kept falling. I personally measured 15.5 inches over the recent ten day period and 11 to 15 inches were common reports and some reported more.  What a difference a year makes, as we have gone from desert like conditions to the swamp.  Obviously the rainfall has prevented field work from occurring, thus we still have cotton in the field, along with cotton seedlings and stalks that are not destroyed.  As a result the cotton stalk destruction deadline has again been moved.


The Chairman of the Zone 2 Cotton Producer Advisory Committee has sent a request to TDA to extend the cotton stalk destruction deadline for Zone 2 Areas 2, 3 & 4 until October 15, 2010.

With this request, Zone 2 Areas 2, 3 & 4 will have an October 15 stalk destruction deadline.  This includes the following counties:  Aransas, Bee, Calhoun, Goliad, Jim Wells, Kleberg, LaSalle, Live Oak, McMullen, Nueces, Refugio, San Patricio and Victoria.

For producers in these counties that still have unharvested cotton and have not filed for an individual extension this season, an individual extension request must be submitted to TDA no later than October 5, 2010.   For producers that have already applied for an individual extension for unharvested cotton, subsequent extensions for unharvested cotton may be made up until the extended deadline of October 15th instead of the original requirement of requesting 10 days prior to the deadline.

Producers in these counties with harvested, regrowth, and volunteer cotton will have until the day of the deadline (October 15, 2010) to apply for an individual extension if necessary.

Extension requests for fields in Calhoun, Goliad and Victoria Counties should be faxed to TDA's Houston office toll free at (888) 223-5606.

Extension requests for remaining counties in Zone 2 should be faxed to the Corpus Christi office toll free at (800) 909-8223.

For complete information on the Cotton Stalk Destruction program visit the Texas Department of Agriculture website at www.TexasAgriculture.gov
To Navigate to Cotton Stalk Destruction, click "Programs", then click "By Name", then click "Cotton Stalk Destruction"

Friday, September 17, 2010

COOL-SEASON FORAGES COULD OFFER WINTER GRAZING

            The recent rainfall has offered forage producers some alternatives if they wish to establish winter pastures.  Although cool-season annual forages can be expensive to plant and grow, they
can be a less costly substitute for supplements found in a bale, sack, or tub.  There are several options when it comes to a cool-season forage, and all have different pros and cons.
            Oat is the least winter-hardy cool-season annual grass, but for South Texas, this would be a good choice, since hard freezes are not common. Oats can be planted in early fall and will more than likely produce the most early dry matter of the cool-season forages in South Texas.  Keep in mind that forage production can be variable with oats and oats do not grow well on sandy soils, but tolerate wet, poorly drained soils better than other small grains.
            Rye is the most winter hardy of the annual winter pasture grasses. Compared to other annual winter grasses, rye produces more fall and winter forage. It matures earlier in the spring than most wheat varieties - usually peaking in early Spring. Rye grows well on well-drained soils that are sandy in texture.
            Wheat provides the most flexibility as a crop as it can serve as a forage crop and grain crop simultaneously, if managed properly. It produces well on a wide range of soils, with very sandy soils being the exception. One negative aspect of wheat is that most of the production occurs in the Spring.
            Barley and Triticale are cool-season annual grasses which are not as widely used. Barley is most noted for being tolerant of saline and alkaline soils. It does not grow well on sandy soils, but is drought tolerant. Triticale is a "cross" between wheat and rye and its forage production generally exceeds that of wheat.  Triticale has characteristics of both parental lines that may make it the most widely adapted of the small grains.
            Ryegrass is adapted to a wide range of soil types, growing better on wet soils than most other cool-season annual grasses. It can be easily established by simply broadcasting seed on the soil surface or on grass sod, but establishes better if a light disking operation on a short sod is performed prior to broadcasting the seed. Production of dry matter from ryegrass will be late in the cool season; therefore, most ryegrass forage will generally be available later than the small grains.  This is an advantage of ryegrass because mixtures of small grains with ryegrass can work well to extend the grazing season.
            Legumes like burr medics and clovers are good for the soil and provide good nutrition for livestock; however, their dry matter production will be late in the cool season, most of which will occur in early Spring.  Cool-season legumes are an attractive option to decrease the production cost associated with nitrogen fertilization because legumes have the ability to fix atmospheric N. Annual clovers can contribute about 75- 100 lbs N/acre for the subsequent grass crop. They are, however, only able to fix N from the air if host-specific strains of Rhizobia bacteria are present in nodules on their roots.
            In South Texas, the general recommendation is to overseed cool-season annual
forages from 6 to 8 weeks before the average first killing frost.  Correct timing for cool-season
annual forage establishment cannot be overemphasized. If planted too early, warm temperatures and the competitive nature of the warm-season perennial grass sod can result in stand failure.
            Planting cool-season forages with a drill is usually better than broadcasting as more of the seed is placed at the proper depth. When broadcasted, the seeding rates should be increased 25 to 30% to compensate for fewer seed becoming established plants. Small grains should be planted
from 1 to 1.5 inches deep, and ryegrass should be planted approximately 1/8 to 1/4
inches deep.  Clovers and medics have very small seed and should be either planted 1/8 to ¼ inches deep or broadcast on the soil surface and rolled.  Seeding rates for cool-season small grains range from 90-120 pounds per acre, while ryegrass seeding rates range from 25-30 pounds per acre and clovers and medics range from 4-16 pounds per acre.          
            Fertilization for cool-season forages should be based on soil test recommendation and
fertilizer should be applied at planting or after emergence, except for phosphorus, which
should be applied several weeks ahead of the anticipated planting date.  Nitrogen fertilization of
over-seeded small grains or ryegrass is usually split into two applications of 50 to 60 lbs/acre each. If ryegrass is planted in combination with a small grain, one to two additional applications of N will be required.  The initial N application on small grains should be delayed until after the small grain is established and cool temperatures have reduced warm-season grass growth.  For ryegrass-only pastures, the first N application should not be applied until mid January and then again approximately six weeks later.
            Although winter pastures provide forage that is high in nutritive value, establishment
and maintenance costs are relatively high. Therefore, winter pastures containing small grains
should be carefully managed to maximize the return on the investment, and one more thing, we have to have rain to make this system work.  Variety test information is available at http://varietytesting.tamu.edu/

Tuesday, September 7, 2010

IMPROVING WHEAT PRICES STIMULATES INTEREST


    As a good cotton harvest comes to a close, and Tropical Storm Hermine giving us some beneficial rains, some folks are thinking about what to plant later this fall.  This year we had some outstanding wheat yields and then saw the price fall dramatically.  However, with the recent improvement in wheat prices, there is again interest in growing wheat in South Texas.
     Recently, Dr. Mark Welch, economist with Texas AgriLife Extension Service made some comments about the improving wheat markets.  According to Dr. Welch, U.S. wheat exports are projected to be the second-highest since 1996, and strong future demand is expected.
    "Other than exports, the demand categories for U.S. wheat have been relatively stable the last few years," said Welch."Production is up with better-than-expected yields, but if exports stay strong, they will reduce ending stocks. The level of ending stocks had grown to levels not seen since the mid-1980s."  The change in wheat supply and demand fundamentals can be seen in the latest World Agricultural Supply and Demand Estimates, with special emphasis on the impact of the drought in Russia, Welch said.
    "It’s particularly hard-hitting in the wheat markets because over the last several years the nations of the former Soviet Union have intensified wheat production and captured more world market share," he said. "The nations of the former Soviet bloc are now the number one exporters of wheat in the world, and with the drought, that’s creating volatility in the market."
Wheat prices had increased as the impact of the drought became more evident, but wheat prices moved even higher when Russia announced the suspension of wheat exports and the canceling of forward contracts.
    The world’s wheat supplies are more than adequate to meet demands at this time, Welch said, and looking ahead to the fall planting season, there are several factors to consider.
"One is the drought in Russia and will it continue," Welch said. "They will need rainfall to replenish those soils and establish the new crop. Winters are extremely harsh. That crop needs to be in good condition to survive winter weather. In the U.S., a La Nina winter is on the horizon, which is usually associated with lower-than-normal wheat production in the Southern High Plains."
    Typically in a La Nina winter, temperatures are above normal and precipitation levels below normal through much of the southern winter wheat growing areas, Welch said.
"We are moving from an El Nino weather pattern where you have above (average) precipitation and one of the best wheat crops ever," Welch said. "But just because we face a La Nina doesn’t mean it will be a crop failure. On average, Texas production of wheat in an El Nino winter is 5 percent above the trend line average and in a La Nina winter, about 5 percent below because of the likelihood of poor growing conditions."
    The current wheat situation has created some profitable price levels in the futures market, Welch said, but the question is does a producer have the tools to take advantage of these opportunities.  "The basis (the difference between the local cash price and the futures price) for wheat during this past harvest was very poor," he said. "We saw cash wheat prices fall to the lowest levels in years. That basis remains relatively low and to lock in cash wheat prices now generally locks in that poor basis. I want to lock in this price on some of next year’s crop, but not necessarily this basis. Futures and options let you do that or hedge to arrive contracts with your elevator."  Welch predicts the cost basis to improve for wheat.
    "The factors that contributed to the recent weakening of the basis-large crop, tight storage, shut down in the export market appear to be changing," he said. "We may not see the storage difficulties of this year if production is back to normal levels or less and exports are on the rise with the drought in eastern Asia and weakness in the dollar. Wheat customers are coming back to the U.S. because of the dependability and adequacy of our supply. I think there are some good opportunities to lock in some prices for next year; however, I would be hesitant to lock in this basis right now unless that’s the only alternative you have."
    Another important decision to be made with wheat production is selection of good varieties to plant.  This decision will impact yield potential, seed quality, disease and insect management, and maturity.  Variety diversification is important as it spreads the risk associated with potential yield loss factors.  Data for variety trials can be obtained from numerous sources.  We conducted a Wheat Variety Test at the Texas AgriLife Research & Extension Center in Corpus Christi this past year.  Eleven spring wheat varieties were evaluated and the grand mean yield for this test was 50.9 bushels per acre. Numerically the top performing variety was Expresso at 58.6 bushels per acre, although not statistically significant from other varieties like Albany, Faller, Express, and Dinero.  The complete results are posted on our web site @ http://nueces-tx.tamu.edu/publications.cfm under the link for Wheat Result Demonstrations.
There is also data posted from other South Texas locations including; Castroville, Uvalde, and Luling @ http://varietytesting.tamu.edu/wheat/index.htm.  When making variety selections, producers should look 2 to 3 year averages for varieties and several relevant variety trial locations.
    More information about Wheat Production may be obtained from your local County Extension Agent.

Monday, August 30, 2010

FORAGE INSURANCE A USEFUL RISK MANAGEMENT TOOL

    An insurance tool that was introduced a few years ago to help manage risk associated with drought or a lack of rainfall in pastures and rangeland has had the sales closing dates for the upcoming year moved up to September 30, 2010.
    Pasture Rangeland Forage (PRF) crop insurance is a group risk policy that covers livestock grazing and forage land, and in Texas, it is based on a Rainfall Index. The Rainfall Index (RI) uses National Oceanic and Atmospheric Administration (NOAA) data and the index reflects how much precipitation is received relative to the long-term average for a specified area or grid and time frame.
    Each grid covers an approximate 12 x 12 mile grid. You must select at least two, 2-month time slots, where rain is important to your operation in your area. These time slots are called index intervals. Your insurance payments will be calculated based on the actual rainfall in the grid and how it differs from normal rainfall within the  grid and index interval(s) you have chosen to insure. When the final grid index falls below your “trigger grid index” (coverage level multiplied by the expected grid index), you will receive a loss payment. This insurance coverage is for a single peril—lack of rain. Coverage is based on the experience of the entire grid. It is NOT based on individual farms or ranches or specific weather stations in the general area.
    PRF insurance was designed for maximum flexibility.  You are not required to insure all your acres, but you cannot exceed the total number of grazing or haying acres you operate. This allows you to insure only those acres that are important to your grazing program or hay operation. By selecting a Productivity Factor, you can establish a value between 60 and 150 percent of the County Base Value and match the amount of your protection to the value of forage that best represents your specific grazing or hay operation, as well as the productivity of your land.
    You will be asked to make several choices when insuring your grazingland or hayland production, including coverage level, index intervals, productivity factor, and number of acres. You should work with your crop insurance agent to view the map and index grids for your area, and assign acreage to one or more grids based on the location and use of the acreage that is to be insured.  It is critical that producers review the historical indices for their grid ID to determine how well the past results correspond to their past observations.  Remember the sales closing date  for 2011 crop is September 30, 2010.
    The web site with more information on this program and grid locations and can be found at:  http://www.rma.usda.gov/policies/pasturerangeforage/

Thursday, August 26, 2010

DEER MANAGEMENT 101

    The Welder Wildlife Foundation is hosting a Deer Management 101: Enhancing Deer Habitat workshop on Saturday, September 11, 2010.  Assisting with the workshop will be Caesar Kleberg Wildlife Research Institute, Texas Parks & Wildlife, Nature Conservancy, and Texas Agrilife Extension.   The purpose of the workshop is to provide information on the nutritional needs of deer for body growth and antler development and the important native plants available on rangelands to meet these needs.  Discussions will provide information on tools such as mechanical, chemical, grazing, and fire to enhance deer habitat.  We will also discuss how to manage hunters to increase deer antler size and to reach deer management goals.  Cost is $20 and will include lunch, breaks, and handouts.  There will be at least 2 CEU’s available for this workshop.  The workshop will be at the Welder Wildlife Foundation , seven miles north of Sinton, on U.S. Hwy 77,  from 8:30 a.m. to 3:30 p.m.  Interested individuals should RSVP by sending your name, contact information, and fee to: Dr. Terry Blankenship, Welder Wildlife Foundation, P.O. Box 1400, Sinton, Texas, 78387.

Monday, August 23, 2010

BELT TIGHTENING IN THE COW BUSINESS


    In today’s tough economy, improving efficiency of an operation is the key to success.   The same is true on the ranch.  Despite improving cattle markets, watching the bottom line in an operation is more important than ever in the cattle business, and there’s not much room for equipment-related purchases that aren’t absolutely necessary, according to Dr. Ron Gill, AgriLife Extension beef cattle specialist and associate department head for the department of animal science at Texas A&M.
    Recently at the 2010 Texas A&M Beef Cattle Short Course in College Station, ranchers were reminded not to get carried away with buying too much equipment to run an operation.
On average, cow-calf producers operate on something around a $40 per calf profit margin, said Gill.  The bottom line is to be practical, he said.
    "A lot of people in the cattle business die of heavy metal disease," he told producers, meaning too many people buy too much equipment and don't pay enough attention to purchasing equipment that is essential for a ranch.  "What are the basic requirements for a ranching operation?" Gill asked. "If we really look at the ones who are making a lot of money in the cattle business, they don't have a lot of metal lying around (i.e., farm equipment, implements, etc.)."
    The average herd size in Texas is between 30 and 40 head of cows, which produces half of the beef statewide. Gill said these small operators can easily get carried away with buying unnecessary equipment rather than making sound business decisions. A case in point is buying a trailer to haul cows and calves. "This is a big-ticket item," he said. "How many times a year are you going to use one of these?"
    Gill showed the audience a photo of a Gooseneck-style cattle trailer. "It's nice to have one of them, but economically for a small cow-calf operator it's not feasible if you are using it once or twice a year," he said. "At $40 a head profit for that calf, how many would it take to pay for that trailer? There's plenty of people that haul cattle for a living and can be recommended at the auction barn. Give them a chance." Same goes for tractor and pickup purchases. He said some producers go overboard with these purchases and incur unnecessary expenses.
    Gill spoke of a man in the stocker business with more than 1,000 head, but operated out of an S-10 pickup with two hammers and a set of panels.  "He's been successful for many years," Gill said. “I'm trying to get everybody to think how many calves it's going to take to pay for it. It’s very disturbing math. You can get in so deep sometimes; it's very difficult to get out."
    Currently there is a lot of optimism in the cattle business with fewer numbers of cattle across the United States, in fact the U.S. cattle inventory is one of the smallest since 1959. While rainfall this year has been welcomed by Texas cattle producers, ranchers should not to get carried away with overstocking pastures with cattle that have been through long periods of dry weather. Allowing ample time for recovery and managing new growth of forage can help protect further damage to a pasture.
    Forage in pastures, be it improved grasses or native forage, needs to be monitored.  The old theory of “take half and leave half,” has some real merit.  If one sees that 50% of the available forage has been removed from a pasture, it is time to move those cattle out and into another pasture, allowing enough time for that pasture to recover.
    Stocking rate decisions made before, during and after a drought will determine how your forage stand will survive and if it will remain productive.  Flexibility should be built into your stocking rates, especially here in South Texas, where droughts are common.  Here you might consider your breeding herd of no more than 50 to 70 percent of the total carrying capacity of the ranch, while the remainder of your animal units be made up of yearlings or stocker animals.  If and when a drought returns, your initial stock reductions could then come from the yearlings or stockers.
    Bottom line, your forage supply must exceed the livestock demand, and that takes some planning.  If livestock consume that critical forage residue, resulting in plants and soils not being  protected, your long-term carrying capacity of the ranch can be severely reduced, even long after that drought has ended.

Monday, August 16, 2010

COTTON STALK DESTRUCTION KEY TO BOLL WEEVIL REMOVAL


    As the cotton harvest continues, it is important not to forget about destroying those cotton stalks as soon as the crop has been removed from the field to aid in reducing costs for the Boll Weevil Eradication Program (BWEP).  This year there has been a 90% reduction in the number of boll weevils caught in the local area as compared to last year. Good progress has been made on this front, so lets keep the weevils on the march and out of town for good!
    The Chairman of the Zone 2 Cotton Producer Advisory Committee has sent a request to TDA to extend the cotton stalk destruction deadline for Zone 2, Areas 1, 2 & 3. Citing weather conditions that delayed cotton planting at the beginning of the season, along with seasonal weather that delayed crop maturation, the committee chairman is requesting the deadline for these areas with a September 1st  and September 15th  deadline be extended to September 22, 2010. This change in deadline will be in effect for the 2010 crop year only.
    Counties affected by the extension include: Jim Wells, Kleberg, Nueces, San Patricio, Duval, Webb and the southern portions of Bee, Live Oak and Aransas counties.
    In its native habitat cotton is a perennial shrub that may survive for many years. The perennial habit of cotton allows it to regrow following harvest, providing the potential for development of hostable fruit (squares and bolls) for boll weevil feeding and reproduction. Under good environmental conditions, cotton plants can generate hostable fruit in three to four weeks.
    When field conditions and weather are favorable for tillage, stalks can be shredded and then disked to destroy the intact plant. Stubble stalk pullers can also be used to uproot the stalk. These mechanical methods are generally successful, but some stalks may survive these operations. Also, many growers are implementing reduced tillage systems which do not allow for primary tillage operations, causing producers to evaluate new methods for stalk destruction.
    There has been much interest in alternative cotton stalk destruction throughout the South Texas area in recent years. While many producers still use various tillage methods to destroy their cotton stubble, be aware that there are other choices available. Regardless of the method chosen, the primary purpose of destroying cotton stalks remains the same and that is the removal of both feeding and fruiting sites that may be used by the boll weevil to reproduce.
    Several herbicides have been registered for cotton stalk destruction. Herbicides available include, but are not limited to 2,4-D (ester and salt formulations), several dicamba products (Weedmaster, Clarity, Banvel), and Harmony Extra (thifensulfuron-methyl + tribenuron-methyl). For these products to be legal for cotton stalk destruction, the label must contain a section addressing “crop stubble” or specify cotton as the target pest following harvest.
    Based on most recent field research, it appears the low-volatile, amine salt formulations are equally as effective as the ester formulations for cotton stalk destruction, and minimize problems associated with off-target drift. The first application should be at the rate of one pound of active ingredient/acre (eg. 1 qt. of a 4 lbs. a.i./gal. formulation). Generally, a second application of 0.5 to 1.0 lb. a.i./acre will be necessary for control of any live stalks and emerged cotton seedlings.
    To obtain optimum results, cotton stalks should be shredded (6 to 8 inch height) and the spray application should be made soon after shredding. Best results are achieved if the herbicide is applied the same day as the shredding operation. To achieve optimum effectiveness, some growers have mounted spray booms directly on their flail shredders and are banding their herbicide during the shredding operation, and achieving excellent results. Note that thorough coverage is essential, and should be in the range of 5 to 10 gallons water/acre. Also, the addition of surfactant at the rate of 0.5% v/v (2 qts./100 gals. water) is recommended.   In a recnet study conducted at the Texas AgriLife Research and Extension Center, there was essentially no difference in killing regrowing cotton plants with 2,4-D between treating shredded or left standing stalks,
    If one uses a hormone herbicide like 2,4-D, remember that there is always that potential for off-target drift that might affect other susceptible crops in the area, so be careful and monitor local environmental conditions that could promote the off-target movement of the product.
As we work to wrap up another cotton harvest, it is important to remember that without an effective cotton stalk destruction program here in South Texas, boll weevil eradication cannot be accomplished!

Tuesday, August 10, 2010

Remote Sensing Cameras - A Valuable Wildlife Management Tool

    It seems that things are getting high tech now when comes to watching those deer out at the deer blind or out in the fields.  Digital cameras have been a big hit out in the field and are proving to be a valuable tool.
    The majority of the camera systems available to the public today which are
suitable for unattended wildlife observation are infrared-activated.  These camera systems can be a valuable tool used for wildlife management.  A special webinar to discuss this very topic will be held on August 19, 2010 from 12:00 noon to 1:00 p.m. (Central), presented by Billy Higginbotham -Wildlife & Fisheries Specialist, Texas AgriLife Extension Service and hosted by Eric Taylor - Forestry Specialist, Texas AgriLife Extension Service.
    Ok, so you say what is a webinar?  A webinar is an acronym for web-based seminar. Instead of traveling somewhere to attend a seminar, you meet in a virtual conference room on the internet.  Webinars are free from eXtension, provide current research and answer today's pressing questions.  If you have not yet participated in an Elluminate webinar then please go to www.elluminate.com/support for instructions on setting up your computer. You should do this at least 24 hours in advance of a live  webinar.  If you  have any hardware or software issues, you can call Elluminate Support at 1- 866- 388- 8674.
    It’s Easy! Just point your computer browser too  http://forestrywebinars.net
on the day of the webinar and click on “Wildlife for Lunch - Pond Management” in the “Upcoming Webinars” section.  All you need is a modern computer with a quality Internet connection and a bag lunch. The webinar series provides sound, science-based wildlife management options delivered by experts to you in the comfort of your own home or office. Each web-based seminar is fully interactive and allows you to engage the experts, make comments, and ask questions.
    Scheduled time doesn’t work for you or want to view a Webinar you missed, there is a good chance that it has been archived for you to access at a more convenient time.

Friday, July 30, 2010

COTTON HARVEST AID TRIAL UNDERWAY


    A cotton Harvest Aid Trial was established on the Claude Otahal Farm, just southeast of Robstown at the intersection of FM 892 and FM 2826 in the southwest corner.  The Extension Service trial has eighteen different treatments that were applied on July 27.  Rainfall of 1.9 inches was received on the site July 28.  The estimated treatment costs ranged from a low of $2.19 per acre to a high of $15.45 per acre. Defoliation results from this test will be posted on our web site at http://nueces-tx.tamu.edu/pubcat.cfm?COUNTY=Nueces&CatID=2757
or you may contact the Nueces County Extension Office at 361-767-5223 for more details.

Monday, July 26, 2010

PREPARING COTTON FOR HARVEST


    As we try to wrap up the grain harvest for this year, it is now time to prepare our cotton crop for harvest.  To be successful in preparing our cotton for harvest we need to consider when to schedule defoliation, have good removal of foliage while at the same time facilitate boll opening and then schedule harvest operations.  Along with all of that, dry, sunny weather is also needed.
    There are several methods that one can use to help determine when to use harvest aids to begin defoliating cotton.  Here is a brief review of the more common defoliation-timing techniques.  The most widely used defoliation-timing method is based on a determination of the total percentage of bolls in the field that have opened.  The most common recommendation for defoliant application occurs when the field has 60 to 70 percent open bolls.
    Another method used to help determine when to defoliate cotton is the node above cracked boll (NACB), which focuses on the unopened portion of the crop.  The NACB is determined by locating the uppermost first-position boll that is cracked open with visible lint and counting the number of main-stem nodes to the uppermost harvest able boll.  Most recommendations suggest defoliation at four NACB.  If however, you have a low plant population or skip-row cotton, research has shown that you could probably wait until you have reached three NACB, as with this type of crop more yield will be coming from outer-position bolls and bolls on vegetative branches.
    The measure of accumulated heat units after cutout is yet another method one can use to help schedule defoliation.  A DD60 is a measure of accumulated heat needed for growth and development using a 60-degree temperature minimum.  Research has shown that defoliation could begin when 850 heat units past cutout have been reached.  Locally, in a few cotton fields that I have been monitoring this year, that were planted the last week of March, and reached cutout from June 23 - 27, 850 heat units past cutout will be reached by the end of this week and the beginning of next week.
    Finally, cotton growers should also visually inspect unopened bolls for maturity.  A boll is considered mature if it is difficult to slice in a cross-section with a knife, and seeds have begun to form a brown or black seed coat.  Once the dark seed coat has formed, defoliation will not affect yield of those bolls adversely.  Depending on temperature, cotton bolls need 40 to 60 days to mature.
    When planning to schedule defoliations, the farm’s harvest capacity should also be considered.  In general, defoliating only acreage that can be harvested within a 12-day period following the defoliation treatment will help reduce exposure of lint to weathering loss and possible grade discounts.  Should weather interfere during this time frame, the regrowth will need to be controlled adding to harvest costs.
    It seems that every year is different in regards to how harvest aids will react to the given cotton crop.  No one harvest aid or tank mix combination is the “silver bullet” for every field and all situations.  Harvest aid selection is often based on prior experience and price.  Thorough canopy coverage is essential for acceptable results with all harvest aids.  The carrier volumes should be between 10 and 15 gallons per acre.  While higher carrier volumes are not convenient, water remains the cheapest thing that you can put in the spray tank.
    With all of the rain recently, one could classify our cotton as “rank,” meaning that we have an ample supply of good foliage on the cotton plants with a dense leaf canopy.  Coverage with the defoliant product is challenging.  A common mistake is to increase rates in an effort to achieve better defoliation. However, increased rates are likely to cause leaf desiccation at the top of the plant because most spray solution is intercepted there. In rank situations, the best approach is to apply normal rates, keeping in mind that a second application is likely to be necessary. Rank cotton is generally more expensive to defoliate than normal cotton. However, if a good job is done on the first application, the second application may not require the high rates or complex tank mixes. Additionally, a boll opener can be more effective if added to the second application.
    I am planning to establish a Harvest Aid Trial again this year in some early cotton to evaluate how different treatments will work with this years cotton crop.   Plans are to establish the trial on the Claude Otahal Farm, just southeast of Robstown at the intersection of FM 892 and FM 2826 in the southwest corner.  Defoliation results from this test will be posted on our web site at http://nueces-tx.tamu.edu/pubcat.cfm?COUNTY=Nueces&CatID=2757

Monday, July 19, 2010

SUNFLOWER HARVEST PRODUCES GOOD YIELDS


The above normal rainfall we have seen this growing season has helped to contribute to some good sunflower yields.  Last week I collected data from a Sunflower Hybrid Test that I conducted with Allen and Ross Moench of Agua Dulce.  Four oilseed hybrids were evaluated in a replicated test that was planted on March 13, 2010 and harvested on July 14, 2010 with a John Deere Combine and weighed with an electronic weigh wagon.
    Yield results from the test were Pioneer 63M91 at 2,095 pounds per acre Syngenta 3731 at 2,030 pounds per acre, and Triumph 678 at 1,854 pounds per acre, of which when the data was analyzed, there was not a statistical difference between these three hybrids.  Croplan 378 produced a yield of 1,554 pounds per acre, but had a significantly lower plant population, which certainly had an impact on yield.   Bushel weights in the test ranged from 28 to 34 pounds, while the entire test yield averaged 1,883 pounds per acre.  A detailed report will be available soon from the Nueces County Extension Office.  The support of Allen and Ross Moench  and seed companies for cooperating with this test is appreciated.          

Monday, July 12, 2010

COTTON WORKSHOP TO FOCUS ON CUTOUT TO HARVEST

    The rainfall events of the last two weeks have certainly hurt the mature grain sorghum crop, but cotton has been a beneficiary to some extent.  Yes, there have been cotton squares shed, and this can be alarming when one looks at the edge of a field and finds numerous squares washed out on the end of the turn-row, but those squares are coming from second and third fruiting positions. The most valuable squares and bolls are located in the first position on the plant.
    Some of our early planted cotton will be nearing the time to begin defoliation around the first week of August based on heat unit accumulations.  To address critical management issues during this time of crop development, a Coastal Bend Cotton Management Workshop will be held on Wednesday, July 21, 2010 with the focus on “Cutout to Harvest.”   The workshop will be held at the Texas AgriLife Research and Extension Center at 10345, State Hwy 44, just west of the Corpus Christi Airport.
    Registration will begin at 1:00 p.m. followed by the program at 1:30 p.m and will conclude by 4:30 p.m.  Workshop topics and speakers will include the following; Overview and Current Crop Conditions by Dr. Juan Landivar, Resident Director of the Research Center, Insect Management to Harvest, Dr. Roy Parker, Extension Entomologist, Post-Eradication Boll Weevil Management, Dr. Mike Brewer, AgriLife Research Entomologist, Environmental Factors affecting Defoliation and Boll Opening by Dr. Carlos Fernandez, AgriLife Research Scientist, and the science behind How a Cotton Leaf Drops and Bolls Open by Dr. Landivar. Using Computer Online Tools, namely the weather station network,  to help schedule defoliations will be discussed  by Jeffrey Stapper, County Extension Agent - Agriculture/Natural Resources, while Dr. Larry Falconer, Extension Ag Economist will review the Outlook for Marketing the 2010 Cotton Crop and the economics of using pickers vs. strippers at harvest. Other topics to be discussed will include Harvest-aid Recommendations, including rates and timing.
    Participants in the workshop will be awarded CEU’s toward their Pesticide Applicator and Certified Crop Advisor Licences.  The workshop is being sponsored by the Texas AgriLife Extension Service and Texas AgriLife Research.  More details are available from the Nueces County Extension Office at 361-767-5223.

Educational programs of the Texas AgriLife Extension Service are open to all people without regard to race, color, sex, disability, religion, age, or national origin.  Individuals with disabilities, who require an auxiliary aid, service or accommodation in order to participate in any of the mentioned activities, are encouraged to contact the County Extension Office eight days before all programs for assistance.

Wednesday, July 7, 2010

ALEX HURTS MATURE SORGHUM




As I surveyed the county on July 6, 2010, the amount of water that was still moving from west to east toward the Gulf was amazing!  Rainfall amounts from Alex range from five to more than 9 inches.  Mature sorghum took a hit from this excessive rainfall event.  Fields of mature sorghum have grain dropping from the heads to the ground in an alarming rate in some locations.

For the most part this is what is occurring, the grain drop is being caused by the grain kernel sprouting, the radicle (sprout) is pushing against the glume, forcing the grain to fall. There are some differences between hybrids, some have tighter glumes, and the other big difference was the stage of maturity at which the grain was during the big rains.

So the big question is, how much yield loss are we going to see from this grain drop?  Here is a method to calculate your potential yield loss as it relates to grain on the ground.  Depending on seed size, 16 to 21 seeds per square foot represent a loss of one bushel or 56 pounds per acre.  So take several random counts in a given field, on a square foot measurement, and this will give you some idea of what you might expect regarding yield loss from grain on ground.